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1.
Ther Umsch ; 81(3): 69-73, 2024 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-38984936

RESUMO

INTRODUCTION: Formula diets, through the use of industrially manufactured meal replacement products, lead to effective and rapid weight reduction and improvement in obesity-associated comorbidities. The specific composition of these meal replacement products simplifies the adherence to calorie goals and ensures the supply of essential nutrients during significant energy restriction. Despite numerous potential applications, evidence from randomized controlled studies, and simplicity in practical implementation, challenges persist. Monotony and social restrictions complicate adherence and acceptance. The use of formula diets for sustainable weight loss requires integration into a multimodal treatment approach with the goal of long-term changes in eating and activity behaviour. This includes accompanying nutritional counselling, promotion of physical activity, evaluation of adjuvant pharmacological or interventional therapies, as well as psychological support. The development of new incretin-based anti-obesity medications has opened another application field for formula products. There is optimization potential in expanding the product range and combining it with digital applications to enhance acceptance and reach a larger patient group.


Assuntos
Obesidade , Redução de Peso , Humanos , Obesidade/dietoterapia , Terapia Combinada , Alimentos Formulados , Dieta Redutora , Cooperação do Paciente
2.
Food Funct ; 15(14): 7658-7668, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38953736

RESUMO

Obesity is often accompanied by low-grade chronic inflammation and metabolic syndrome. It has been established that microbiota influences many physiological processes, including the development of obesity, and dysbiosis has been observed in obese individuals. In this study, we aimed to evaluate the impact of a new probiotic formulation, containing two probiotic strains and the bioactive compound octacosanol, on body weight, metabolic parameters, and concentrations of certain adipocytokines and appetite-regulating hormones in obese women. This double blind placebo-controlled supplementary intervention study included twenty-five women in the intervention group and twenty-three in the placebo group, and it lasted 12 weeks. Daily oral supplementation included 7 × 1010 CFU of Lactiplantibacillus plantarum 299v (DSM9843), 5 × 109 CFU of Saccharomyces cerevisiae var. boulardii (DBVPG6763), and 40 mg of octacosanol or placebo. Body weight, metabolic parameters, adipocytokines, and appetite-regulating hormones were assessed before (T0) and after the intervention (T1). After the intervention, significantly lower median concentrations of CRP (p = 0.005) and IL-6 (p = 0.012) were measured in the intervention group than the baseline, while the median concentrations of ghrelin (p = 0.026) and HDL-cholesterol (p = 0.03) were significantly increased. The intervention group had lower CRP levels (p = 0.023) and higher ghrelin levels (p = 0.006) than the placebo group. Significant changes in BMI between groups were not observed. In summary, although the new probiotic formulation showed beneficial effects on IL-6, CRP, HDL, and ghrelin levels, its potential effects on regulating triglyceride, insulin, and glucose levels require further studies before the novel dietary intervention could be considered a useful adjuvant therapy and an effective strategy for the management of obesity and obesity-associated comorbidities.


Assuntos
Adipocinas , Obesidade , Probióticos , Humanos , Feminino , Probióticos/farmacologia , Probióticos/uso terapêutico , Obesidade/dietoterapia , Obesidade/metabolismo , Método Duplo-Cego , Adulto , Adipocinas/sangue , Adipocinas/metabolismo , Pessoa de Meia-Idade , Grelina/sangue , Apetite/efeitos dos fármacos , Lactobacillus plantarum , Peso Corporal/efeitos dos fármacos , Proteína C-Reativa/metabolismo
3.
J Agric Food Chem ; 72(29): 16237-16249, 2024 Jul 24.
Artigo em Inglês | MEDLINE | ID: mdl-38984620

RESUMO

Dietary fiber and polyphenols have been shown to possess antiobesity properties. However, their combined effects need further investigation. This study investigated the individual and combined effects of arabinoxylan oligosaccharides (AXOS) from rice bran and green tea polyphenols (GTP) in high-fat diet-induced obese mice. We found that the combination of AXOS and GTP (A + G) significantly reduced overall fat mass and improved lipid profiles, although the effects were not synergistic. AXOS and GTP regulated lipid metabolism in different tissues and exhibited counteractive effects on gut microbiota. AXOS decreased α diversity and promoted Bifidobacterium, with GTP counteracting these effects. In vitro fermentation confirmed that GTP counteracted AXOS-induced microbiota changes in a dose-dependent manner. This study highlights the potential of tailored combinations of dietary fiber and polyphenols to treat obesity while considering their complex microbial interplay.


Assuntos
Dieta Hiperlipídica , Microbioma Gastrointestinal , Camundongos Endogâmicos C57BL , Obesidade , Oligossacarídeos , Polifenóis , Chá , Xilanos , Animais , Xilanos/administração & dosagem , Xilanos/farmacologia , Xilanos/metabolismo , Polifenóis/farmacologia , Polifenóis/administração & dosagem , Polifenóis/química , Microbioma Gastrointestinal/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Obesidade/metabolismo , Obesidade/tratamento farmacológico , Obesidade/microbiologia , Obesidade/dietoterapia , Camundongos , Oligossacarídeos/administração & dosagem , Oligossacarídeos/farmacologia , Masculino , Chá/química , Humanos , Bactérias/classificação , Bactérias/efeitos dos fármacos , Bactérias/isolamento & purificação , Bactérias/metabolismo , Bactérias/genética , Extratos Vegetais/administração & dosagem , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Camellia sinensis/química , Fibras na Dieta/metabolismo , Fibras na Dieta/farmacologia , Oryza/química
4.
Nutrients ; 16(13)2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38999768

RESUMO

The rising obesity epidemic requires effective and sustainable weight loss intervention strategies that take into account both of individual preferences and environmental impact. This study aims to develop and evaluate the effectiveness of an innovative digital biohacking approach for dietary modifications in promoting sustainable weight loss and reducing carbon footprint impact. A pilot study was conducted involving four participants who monitored their weight, diet, and activities over the course of a year. Data on food consumption, carbon footprint impact, calorie intake, macronutrient composition, weight, and energy expenditure were collected. A digital replica of the metabolism based on nutritional information, the Personalized Metabolic Avatar (PMA), was used to simulate weight changes, plan, and execute the digital biohacking approach to dietary interventions. The dietary modifications suggested by the digital biohacking approach resulted in an average daily calorie reduction of 236.78 kcal (14.24%) and a 15.12% reduction in carbon footprint impact (-736.48 gCO2eq) per participant. Digital biohacking simulations using PMA showed significant differences in weight change compared to actual recorded data, indicating effective weight reduction with the digital biohacking diet. Additionally, linear regression analysis on real data revealed a significant correlation between adherence to the suggested diet and weight loss. In conclusion, the digital biohacking recommendations provide a personalized and sustainable approach to weight loss, simultaneously reducing calorie intake and minimizing the carbon footprint impact. This approach shows promise in combating obesity while considering both individual preferences and environmental sustainability.


Assuntos
Pegada de Carbono , Ingestão de Energia , Obesidade , Redução de Peso , Humanos , Projetos Piloto , Masculino , Feminino , Obesidade/dietoterapia , Adulto , Metabolismo Energético , Pessoa de Meia-Idade , Dieta Redutora/métodos , Dieta/métodos
5.
Nutrients ; 16(13)2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38999827

RESUMO

A very low calorie ketogenic diet (VLCKD) impacts host metabolism in people marked by an excess of visceral adiposity, and it affects the microbiota composition in terms of taxa presence and relative abundances. As a matter of fact, there is little available literature dealing with microbiota differences in obese patients marked by altered intestinal permeability. With the aim of inspecting consortium members and their related metabolic pathways, we inspected the microbial community profile, together with the set of volatile organic compounds (VOCs) from untargeted fecal and urine metabolomics, in a cohort made of obese patients, stratified based on both normal and altered intestinal permeability, before and after VLCKD administration. Based on the taxa relative abundances, we predicted microbiota-derived metabolic pathways whose variations were explained in light of our cohort symptom picture. A totally different number of statistically significant pathways marked samples with altered permeability, reflecting an important shift in microbiota taxa. A combined analysis of taxa, metabolic pathways, and metabolomic compounds delineates a set of markers that is useful in describing obesity dysfunctions and comorbidities.


Assuntos
Dieta Cetogênica , Microbioma Gastrointestinal , Metabolômica , Obesidade , Permeabilidade , Humanos , Dieta Cetogênica/métodos , Obesidade/dietoterapia , Obesidade/metabolismo , Microbioma Gastrointestinal/fisiologia , Feminino , Masculino , Adulto , Metabolômica/métodos , Pessoa de Meia-Idade , Redes e Vias Metabólicas , Fezes/microbiologia , Fezes/química , Mucosa Intestinal/metabolismo , Compostos Orgânicos Voláteis/análise , Restrição Calórica/métodos , Função da Barreira Intestinal , Multiômica
6.
Nutrients ; 16(13)2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38999858

RESUMO

The aim of this systematic review and meta-analysis was to examine the effects of plant-based diets on markers of insulin sensitivity in people with overweight/obesity, prediabetes, or type 2 diabetes (T2D). A systematic literature search in MEDLINE, Embase, CINAHL, and CENTRAL was conducted, and randomised controlled trials (RCTs) investigating the effect of plant-based diets (vegan, ovo-vegetarian, lacto-vegetarian, and lacto-ovo-vegetarian) for ≥14 d on markers of insulin sensitivity in adults (≥18 years) with BMI ≥ 25 kg/m2, prediabetes, or T2D were eligible. We identified eight RCTs, including 716 participants. In comparison with control diets, plant-based diets improved Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) (-0.97, 95% confidence interval (CI) (-1.67, -0.27), p = 0.007) and fasting insulin (-4.13 µU/mL, 95% CI (-7.22, -1.04), p = 0.009) in people with overweight/obesity. In people with prediabetes, one study compared vegan and vegetarian diets and found no difference in HOMA-IR, or fasting insulin. One study of people with T2D reported no difference in immunoreactive insulin and metabolic glucose clearance compared with a conventional diabetes diet. In conclusion, adhering to plant-based diets for ≥14 d improved HOMA-IR and fasting insulin in people with overweight/obesity. Long-term RCTs are needed to determine whether plant-based diets can result in prolonged improvements in insulin sensitivity in people at risk of or with T2D.


Assuntos
Diabetes Mellitus Tipo 2 , Dieta Vegetariana , Resistência à Insulina , Obesidade , Estado Pré-Diabético , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Diabetes Mellitus Tipo 2/dietoterapia , Estado Pré-Diabético/dietoterapia , Estado Pré-Diabético/sangue , Obesidade/dietoterapia , Insulina/sangue , Biomarcadores/sangue , Dieta Vegana , Sobrepeso/dietoterapia , Masculino , Glicemia/metabolismo , Feminino , Adulto , Pessoa de Meia-Idade , Dieta Baseada em Plantas
8.
Artigo em Inglês | MEDLINE | ID: mdl-39026486

RESUMO

Both obesity and asthma are increasingly being diagnosed in the childhood population. Obesity is linked to a greater asthma morbidity, and it increases the risk of severity of the disease course. The association between these 2 disorders has not yet been fully elucidated; however, several putative factors have been proposed related to mechanical and inflammatory aspects of obesity. Diet is an important adjustable element in obesity and asthma management. An unhealthy diet based on processed food is likely to promote chronic inflammation in both conditions; hence, appropriate nutrition should be an integral part of the children's therapy. This review discusses dietary models that have a positive impact on patient health.


Assuntos
Asma , Obesidade Infantil , Humanos , Asma/etiologia , Asma/dietoterapia , Criança , Adolescente , Dieta , Obesidade/dietoterapia
9.
J Agric Food Chem ; 72(28): 15765-15777, 2024 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-38970495

RESUMO

Konjac glucomannan (KGM), high-viscosity dietary fiber, is utilized in weight management. Previous investigations on the appetite-suppressing effects of KGM have centered on intestinal responses to nutrients and gastric emptying rates, with less focus on downstream hypothalamic neurons of satiety hormones. In our studies, the molecular mechanisms through which KGM and its degradation products influence energy homeostasis via the adipocyte-hypothalamic axis have been examined. It was found that high-viscosity KGM more effectively stimulates enteroendocrine cells to release glucagon-like peptide-1 (GLP-1) and reduces ghrelin production, thereby activating hypothalamic neurons and moderating short-term satiety. Conversely, low-viscosity DKGM has been shown to exhibit stronger anti-inflammatory properties in the hypothalamus, enhancing hormone sensitivity and lowering the satiety threshold. Notably, both KGM and DKGM significantly reduced leptin signaling and fatty acid signaling in adipose tissue and activated brown adipose tissue thermogenesis to suppress pro-opiomelanocortin (POMC) expression and activate agouti-related protein (AgRP) expression, thereby reducing food intake and increasing energy expenditure. Additionally, high-viscosity KGM has been found to activate the adipocyte-hypothalamus axis more effectively than DKGM, thereby promoting greater daily energy expenditure. These findings provide novel insights into the adipocyte-hypothalamic axis for KGM to suppress appetite and reduce weight.


Assuntos
Adipócitos , Regulação do Apetite , Dieta Hiperlipídica , Metabolismo Energético , Hipotálamo , Camundongos Endogâmicos C57BL , Animais , Camundongos , Metabolismo Energético/efeitos dos fármacos , Hipotálamo/metabolismo , Hipotálamo/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Masculino , Regulação do Apetite/efeitos dos fármacos , Adipócitos/metabolismo , Adipócitos/efeitos dos fármacos , Humanos , Peptídeo 1 Semelhante ao Glucagon/metabolismo , Grelina/metabolismo , Leptina/metabolismo , Proteína Relacionada com Agouti/metabolismo , Proteína Relacionada com Agouti/genética , Termogênese/efeitos dos fármacos , Pró-Opiomelanocortina/metabolismo , Pró-Opiomelanocortina/genética , Obesidade/metabolismo , Obesidade/fisiopatologia , Obesidade/dietoterapia , Mananas
10.
Nutr J ; 23(1): 64, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38872173

RESUMO

BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a globally increasing health epidemic. Lifestyle intervention is recommended as the main therapy for NAFLD. However, the optimal approach is still unclear. This study aimed to evaluate the effects of a comprehensive approach of intensive lifestyle intervention (ILI) concerning enhanced control of calorie-restricted diet (CRD), exercise, and personalized nutrition counseling on liver steatosis and extrahepatic metabolic status in Chinese overweight and obese patients with NAFLD. METHODS: This study was a multicenter randomized controlled trial (RCT) conducted across seven hospitals in China. It involved 226 participants with a body mass index (BMI) above 25. These participants were randomly assigned to two groups: the ILI group, which followed a low carbohydrate, high protein CRD combined with exercise and intensive counseling from a dietitian, and a control group, which adhered to a balanced CRD along with exercise and standard counseling. The main measure of the study was the change in the fat attenuation parameter (FAP) from the start of the study to week 12, analyzed within the per-protocol set. Secondary measures included changes in BMI, liver stiffness measurement (LSM), and the improvement of various metabolic indexes. Additionally, predetermined subgroup analyses of the FAP were conducted based on variables like gender, age, BMI, ethnicity, hyperlipidemia, and hypertension. RESULTS: A total of 167 participants completed the whole study. Compared to the control group, ILI participants achieved a significant reduction in FAP (LS mean difference, 16.07 [95% CI: 8.90-23.25] dB/m) and BMI (LS mean difference, 1.46 [95% CI: 1.09-1.82] kg/m2) but not in LSM improvement (LS mean difference, 0.20 [95% CI: -0.19-0.59] kPa). The ILI also substantially improved other secondary outcomes (including ALT, AST, GGT, body fat mass, muscle mass and skeletal muscle mass, triglyceride, fasting blood glucose, fasting insulin, HbA1c, HOMA-IR, HOMA-ß, blood pressure, and homocysteine). Further subgroup analyses showed that ILI, rather than control intervention, led to more significant FAP reduction, especially in patients with concurrent hypertension (p < 0.001). CONCLUSION: In this RCT, a 12-week intensive lifestyle intervention program led to significant improvements in liver steatosis and other metabolic indicators in overweight and obese Chinese patients suffering from nonalcoholic fatty liver disease. Further research is required to confirm the long-term advantages and practicality of this approach. TRIAL REGISTRATION: This clinical trial was registered on ClinicalTrials.gov (registration number: NCT03972631) in June 2019.


Assuntos
Restrição Calórica , Estilo de Vida , Hepatopatia Gordurosa não Alcoólica , Obesidade , Sobrepeso , Humanos , Masculino , Feminino , Restrição Calórica/métodos , China , Hepatopatia Gordurosa não Alcoólica/dietoterapia , Hepatopatia Gordurosa não Alcoólica/terapia , Hepatopatia Gordurosa não Alcoólica/complicações , Pessoa de Meia-Idade , Obesidade/dietoterapia , Obesidade/terapia , Obesidade/complicações , Sobrepeso/terapia , Sobrepeso/complicações , Sobrepeso/dietoterapia , Adulto , Fígado/metabolismo , Índice de Massa Corporal , Exercício Físico/fisiologia , Aconselhamento/métodos
11.
Mol Nutr Food Res ; 68(12): e2400106, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38850172

RESUMO

SCOPE: Interindividual variations in postprandial metabolism and weight loss outcomes have been reported. The literature suggests links between postprandial metabolism and weight regulation. Therefore, the study aims to evaluate if postprandial glucose metabolism after a glucose load predicts anthropometric outcomes of a weight loss intervention. METHODS AND RESULTS: Anthropometric data from adults with obesity (18-65 years, body mass index [BMI] 30.0-39.9 kg m-2) are collected pre- and post an 8-week formula-based weight loss intervention. An oral glucose tolerance test (OGTT) is performed at baseline, from which postprandial parameters are derived from glucose and insulin concentrations. Linear regression models explored associations between these parameters and anthropometric changes (∆) postintervention. A random forest model is applied to identify predictive parameters for anthropometric outcomes after intervention. Postprandial parameters after an OGTT of 158 participants (63.3% women, age 45 ± 12, BMI 34.9 ± 2.9 kg m-2) reveal nonsignificant associations with changes in anthropometric parameters after weight loss (p > 0.05). Baseline fat-free mass (FFM) and sex are primary predictors for ∆ FFM [kg]. CONCLUSION: Postprandial glucose metabolism after a glucose load does not predict anthropometric outcomes after short-term weight loss via a formula-based low-calorie diet in adults with obesity.


Assuntos
Glicemia , Restrição Calórica , Teste de Tolerância a Glucose , Obesidade , Período Pós-Prandial , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Período Pós-Prandial/fisiologia , Restrição Calórica/métodos , Glicemia/metabolismo , Obesidade/dietoterapia , Redução de Peso , Adulto Jovem , Adolescente , Idoso , Índice de Massa Corporal , Insulina/sangue , Estilo de Vida , Antropometria
12.
Sci Rep ; 14(1): 13992, 2024 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-38886475

RESUMO

Obesity is a complex disease associated with augmented risk of metabolic disorder development and cellular dysfunction in various species. The goal of the present study was to investigate the impacts of obesity on the metabolic health of old mares as well as test the ability of diet supplementation with either a complex blend of nutrients designed to improve equine metabolism and gastrointestinal health or L-carnitine alone to mitigate negative effects of obesity. Mares (n = 19, 17.9 ± 3.7 years) were placed into one of three group: normal-weight (NW, n = 6), obese (OB, n = 7) or obese fed a complex diet supplement for 12 weeks (OBD, n = 6). After 12 weeks and completion of sample collections, OB mares received L-carnitine alone for an additional 6 weeks. Obesity in mares was significantly associated with insulin dysregulation, reduced muscle mitochondrial function, and decreased skeletal muscle oxidative capacity with greater ROS production when compared to NW. Obese mares fed the complex diet supplement had better insulin sensivity, greater cell lipid metabolism, and higher muscle oxidative capacity with reduced ROS production than OB. L-carnitine supplementation alone did not significantly alter insulin signaling, but improved lipid metabolism and muscle oxidative capacity with reduced ROS. In conclusion, obesity is associated with insulin dysregulation and altered skeletal muscle metabolism in older mares. However, dietary interventions are an effective strategy to improve metabolic status and skeletal muscle mitochondrial function in older mares.


Assuntos
Adiposidade , Carnitina , Suplementos Nutricionais , Insulina , Obesidade , Animais , Cavalos , Feminino , Insulina/metabolismo , Insulina/sangue , Carnitina/metabolismo , Carnitina/farmacologia , Obesidade/metabolismo , Obesidade/dietoterapia , Adiposidade/efeitos dos fármacos , Mitocôndrias/metabolismo , Mitocôndrias/efeitos dos fármacos , Músculo Esquelético/metabolismo , Músculo Esquelético/efeitos dos fármacos , Metabolismo dos Lipídeos/efeitos dos fármacos , Doenças dos Cavalos/metabolismo , Doenças dos Cavalos/dietoterapia , Doenças dos Cavalos/etiologia , Resistência à Insulina , Espécies Reativas de Oxigênio/metabolismo
13.
J Agric Food Chem ; 72(26): 14663-14677, 2024 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-38887904

RESUMO

Pomegranate juice (PJ) and inulin have been reported to ameliorate diet-induced metabolic disorders by regulating gut microbiota dysbiosis. However, there was a lack of clinical evidence for the combined effects of PJ and inulin on regulating gut microbiota in individuals with metabolic disorders. A double-blind, parallel, randomized, placebo-controlled trial was conducted, and 68 overweight/obese individuals (25 ≤ BMI ≤ 35 kg/m2) were randomly assigned to receive 200 mL/d PJ, PJ supplemented with inulin, or placebo for 3 weeks. Our results showed that PJ and PJ+inulin did not significantly alter the levels of anthropometric and blood biochemical indicators after 3 weeks of treatment. However, there was an increasingly significant impact from placebo to PJ to PJ+inulin on the composition of gut microbiota. Detailed bacterial abundance analysis further showed that PJ+inulin treatment more profoundly resulted in significant changes in the abundance of gut microbiota at each taxonomic level than PJ. Moreover, PJ+inulin treatment also promoted the production of microbiota-associated short-chain fatty acids and pomegranate polyphenol metabolites, which correlated with the abundance of the bacterial genus. Our results suggested that PJ supplemented with inulin modulates gut microbiota composition and thus promotes the production of microbiota-associated metabolites that exert potential beneficial effects in overweight/obese subjects.


Assuntos
Bactérias , Sucos de Frutas e Vegetais , Microbioma Gastrointestinal , Inulina , Obesidade , Sobrepeso , Punica granatum , Humanos , Inulina/farmacologia , Inulina/administração & dosagem , Inulina/metabolismo , Microbioma Gastrointestinal/efeitos dos fármacos , Masculino , Adulto , Obesidade/metabolismo , Obesidade/microbiologia , Obesidade/dietoterapia , Obesidade/tratamento farmacológico , Punica granatum/química , Punica granatum/metabolismo , Feminino , Pessoa de Meia-Idade , Sobrepeso/metabolismo , Sobrepeso/microbiologia , Sobrepeso/tratamento farmacológico , Sobrepeso/dietoterapia , Método Duplo-Cego , Sucos de Frutas e Vegetais/análise , Bactérias/classificação , Bactérias/genética , Bactérias/metabolismo , Bactérias/isolamento & purificação , Bactérias/efeitos dos fármacos , Suplementos Nutricionais/análise , Ácidos Graxos Voláteis/metabolismo , Adulto Jovem
14.
J Nutr Health Aging ; 28(7): 100289, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38865737

RESUMO

OBJECTIVES: Innovative precision dietary procedures are required to promote healthy aging. This study aimed to evaluate the effects of a personalised strategy based on the inclusion of individualised foods and digital tools on overall health status and quality of life within a follow-up of 3 months in older adults with overweight or obesity. METHODS: 127 men and women aged between 50 and 80 years with overweight/obesity participated in the study-between January 2020 and September 2020 at the Center for Nutrition Research-University of Navarra and IMDEA-ALIMENTACIÓN-and were randomly assigned to a usual-care group (standard recommendations) or precision group (precision nutrition strategy based on the inclusion of individualised foods and a mobile application). Anthropometry, body fat percentage, biochemical parameters, diet, and quality of life (SF-36 Health Survey) were assessed at baseline and after 3 months. RESULTS: Both strategies were found to improve overall metabolic health; however, the precision approach demonstrated significantly better outcomes. The precision strategy reduced body weight at 3 months (-4.3 kg; p < 0.001) with significant improvements in body fat percentage, blood pressure and general metabolic health (glycated haemoglobin; alanine aminotransferase; aspartate aminotransferase; hepatic steatosis index) in comparison with the standard recommendations. The precision approach significantly enhanced the quality of life (SF-36) of individuals, with additional improvements in emotional well-being (p = 0.024) and vitality (p = 0.008). Adherence to the Mediterranean diet was significantly associated with a higher quality of life and vitality. CONCLUSION: These results support the benefit of precision nutrition approaches for promoting healthy aging and emotional well-being, enhancing the quality of life in aging populations, during the COVID-19 pandemic.


Assuntos
Obesidade , Qualidade de Vida , Humanos , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Obesidade/psicologia , Obesidade/dietoterapia , Obesidade/terapia , Sobrepeso/terapia , Sobrepeso/dietoterapia , Envelhecimento Saudável , Nível de Saúde , COVID-19 , Estado Nutricional , Medicina de Precisão/métodos , Envelhecimento/fisiologia , Dieta
15.
PLoS One ; 19(6): e0306038, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38924041

RESUMO

BACKGROUND: The dual existence of Type 2 Diabetes Mellitus (T2DM) and obesity within a single individual may describe a combined adverse health effects, including impaired quality of life and increased risk for cardiovascular diseases (CVDs). Oxidative stress is a contributing factor to the pathogenesis of obesity. Meanwhile, dietary antioxidants may improve the antioxidant defense system and thereby decrease oxidative injury. Dietary total antioxidant capacity (TAC) is usually used to investigate the potential health effects of dietary antioxidant intake on several oxidative stress induced chronic diseases. This study aimed to examine the association of dietary TAC with obesity-related features in T2DM patients. METHODS: The present study included 254 type 2 diabetes outpatients with a mean (SD) age of 54.52 (7.21) years and mean (SD) diabetes duration of 8.2 (6.4) years. Data on dietary intake was assessed using a validated food frequency questionnaire. Dietary TAC was estimated by ferric reducing antioxidant potential (FRAP) method. Anthropometric, clinical and lifestyle characteristics were all collected. RESULTS: In linear regression analyses, dietary antioxidant capacity was inversely associated with body mass index (ß = -0,231; 95% CI, -0,419 to -0,042), waist circumference (ß = -0,427; 95% CI, -0,849 to -0,006) and fat mass percentage (ß = -0,328; 95% CI, -0,545 to -0,112) independently of the assessed confounding variables. Interestingly, dietary TAC showed positive and significant associations with vitamin A, vitamin C, ß-carotene, magnesium, folic acid and iron intakes, after adjusting for age and daily energy intake. CONCLUSIONS: Higher intake of dietary TAC was in association with lower indices of general and central obesity in T2DM patients. Therefore, dietary recommendations for counteracting obesity in patients with T2DM should take into account a high dietary TAC.


Assuntos
Antioxidantes , Diabetes Mellitus Tipo 2 , Obesidade Abdominal , Humanos , Diabetes Mellitus Tipo 2/dietoterapia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/metabolismo , Pessoa de Meia-Idade , Antioxidantes/metabolismo , Antioxidantes/administração & dosagem , Feminino , Masculino , Obesidade Abdominal/complicações , Dieta , Índice de Massa Corporal , Estresse Oxidativo/efeitos dos fármacos , Obesidade/metabolismo , Obesidade/complicações , Obesidade/dietoterapia , Circunferência da Cintura , Adulto
16.
Obesity (Silver Spring) ; 32(7): 1362-1372, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38831482

RESUMO

OBJECTIVE: The main objective of this study is to better understand the effects of diet-induced weight loss on brain connectivity in response to changes in glucose levels in individuals with obesity. METHODS: A total of 25 individuals with obesity, among whom 9 had a diagnosis of type 2 diabetes, underwent functional magnetic resonance imaging (fMRI) scans before and after an 8-week low-calorie diet. We used a two-step hypereuglycemia clamp approach to mimic the changes in glucose levels observed in the postprandial period in combination with task-mediated fMRI intrinsic connectivity distribution (ICD) analysis. RESULTS: After the diet, participants lost an average of 3.3% body weight. Diet-induced weight loss led to a decrease in leptin levels, an increase in hunger and food intake, and greater brain connectivity in the parahippocampus, right hippocampus, and temporal cortex (limbic-temporal network). Group differences (with vs. without type 2 diabetes) were noted in several brain networks. Connectivity in the limbic-temporal and frontal-parietal brain clusters inversely correlated with hunger. CONCLUSIONS: A short-term low-calorie diet led to a multifaceted body response in patients with obesity, with an increase in connectivity in the limbic-temporal network (emotion and memory) and hormone and eating behavior changes that may be important for recovering the weight lost.


Assuntos
Encéfalo , Restrição Calórica , Diabetes Mellitus Tipo 2 , Fome , Imageamento por Ressonância Magnética , Obesidade , Redução de Peso , Humanos , Obesidade/fisiopatologia , Obesidade/dietoterapia , Masculino , Feminino , Redução de Peso/fisiologia , Adulto , Pessoa de Meia-Idade , Fome/fisiologia , Encéfalo/diagnóstico por imagem , Encéfalo/fisiopatologia , Diabetes Mellitus Tipo 2/fisiopatologia , Leptina/sangue , Glicemia/metabolismo , Ingestão de Alimentos/fisiologia
17.
Obesity (Silver Spring) ; 32(7): 1281-1289, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38932724

RESUMO

OBJECTIVE: Higher intake of ultraprocessed foods (UPFs) is associated with obesity. We examined whether replacing UPFs (NOVA 4) with minimally processed foods and culinary ingredients (NOVA 1 + 2) was associated with differential weight change in this secondary prospective analysis of the Preventing Overweight Using Novel Dietary Strategies (POUNDS) Lost trial. METHODS: We estimated percent energy intake (%kcal) from the four NOVA groups using 24-h dietary recalls in a subset of 356 participants. Multivariable-adjusted substitution models examined whether replacing %kcal from UPFs with NOVA 1 + 2 was associated with greater weight, body fat percentage, trunk fat, and waist circumference reduction at 6 months; changes in parameters were compared among NOVA 1 + 2 tertiles (T). RESULTS: Participants were on average 52.3 years of age, 85% White, 55% female, and 58.2% nonsmoking, with a mean BMI of 32.7 kg/m2. Replacing 10%kcal of UPFs with NOVA 1 + 2 was associated with greater 6-month weight (ß = 0.51, 95% CI: -0.93 to -0.09, p = 0.02), body fat percentage (ß = 2.7, 95% CI: -5.10 to -0.43, p = 0.02), and trunk fat reduction (ß = 3.9, 95% CI: -7.01 to -0.70, p = 0.02), but not waist circumference reduction. Participants in T3 (-8.33 kg) versus T1 (-5.32 kg) of NOVA 1 + 2 had greater weight loss (p < 0.001). CONCLUSIONS: Isocaloric substitution of UPFs with NOVA 1 + 2 was associated with marginally greater weight loss under energy restriction. These modest findings support more research exploring the mechanisms linking UPFs with body weight regulation beyond energy intake.


Assuntos
Índice de Massa Corporal , Ingestão de Energia , Obesidade , Circunferência da Cintura , Redução de Peso , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Obesidade/dietoterapia , Estudos Prospectivos , Adulto , Manipulação de Alimentos/métodos , Dieta Redutora/métodos , Fast Foods/efeitos adversos , Sobrepeso/dietoterapia
18.
Clin Nutr ; 43(7): 1770-1781, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38861890

RESUMO

BACKGROUND & AIMS: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a growing public health concern. The disease is silent, and its diagnosis is often delayed. Inflammatory markers constitute an interesting tool to act as subrogate, non-invasive markers. This study aimed to evaluate the changes of inflammatory markers throughout a two-year dietary intervention in subjects presenting MASLD, to determine which of the markers are suitable to predict the disease, and act as a customizing tool for MASLD's dietary treatment. METHODS: Ninety-eight subjects with MASLD and forty-five controls from the Fatty Liver in Obesity (FLiO) Study were analyzed. MASLD was diagnosed and graded by ultrasound. The MASLD subjects were randomly assigned to two different dietary strategies, the American Heart Association (AHA diet) or a dietary strategy based on the Mediterranean pattern, which was specially designed for the study (FLiO diet), and then followed for two years. Hepatic status was additionally assessed through Magnetic Resonance Imaging (MRI), elastography, and determination of transaminases. RESULTS & DISCUSSION: Inflammatory markers improved throughout the intervention in the MASLD subjects and managed to reach similar levels to controls, especially at 6 and 12 months. Additionally, leptin, adiponectin, M30, and LECT2 managed to significantly diagnose the disease at all time marks of the intervention, making them candidates for subrogate non-invasive markers of the disease. Moreover, baseline chemerin, leptin, LECT2, and M65 were used to build a predictive score to achieve greater weight loss, and therefore, which strategy could be more useful for MASLD 's treatment. The predictive score was significantly able assign a specific diet to 55% of the study participants, meaning that the remaining 45% could achieve the same amount of weight loss following either diet equally. CONCLUSION: Inflammatory markers constitute a potential non-invasive tool to be used in MASLD screening and could also constitute an interesting tool for MASLD's treatment customization, being able to predict the effectiveness of a dietary strategy based on the initial inflammatory state of each subject. TRIAL REGISTRATION: www. CLINICALTRIALS: gov (NCT03183193).


Assuntos
Biomarcadores , Obesidade , Humanos , Masculino , Feminino , Biomarcadores/sangue , Pessoa de Meia-Idade , Obesidade/dietoterapia , Obesidade/complicações , Adulto , Inflamação/dietoterapia , Fígado Gorduroso/dietoterapia , Dieta Mediterrânea , Fígado/diagnóstico por imagem , Fígado/metabolismo , Hepatopatia Gordurosa não Alcoólica/dietoterapia , Leptina/sangue
19.
Sci Rep ; 14(1): 14491, 2024 06 24.
Artigo em Inglês | MEDLINE | ID: mdl-38914732

RESUMO

Estimating the change rates in body size following the weight loss programs is very important in the compliance of those programs. Although, there is enough evidence on the significant association of body weight change with the other anthropometric indices and/ or body composition, there is so limited studies that have depicted this relationship as mathematical formulas. Therefore, the present research designed to use a mathematical model to predict changes of anthropometric indices following a weight-loss diet in the overweight and obese women. In this longitudinal study, 212 overweight/obese women who received an individualized low-calorie diet (LCD) were selected and followed-up for five months. Anthropometric measurements such as weight, waist circumference (WC), hip circumference (HC), and body composition (lean mass and fat mass) were performed. Then, body mass index, waist to hip ratio (WHR), waist to height ratio (WHtR), a body shape index (ABSI), abdominal volume index (AVI), and body adiposity index (BAI) were calculated using the related formula. Following the LCD led to the substantial and consistent changes in various anthropometric indices over time. All of these anthropometric variations were significantly related with the percent change (PC) of body weight except than WHR. Moreover, according to the mathematical formulas, weight loss was closely related to the decrease of WC (PC-WC = - 0.120 + 0.703 × PC-WT), HC (PC-HC = - 0.350 + 0.510 × PC-WT), body fat percentage (PC-Body Fat = - 0.019 + 0.915 × PC-WT), WHtR (PC-WHtR = - 0.113 + 0.702 × PC-WT), and improvements in ABSI (PC-ABSI = - 0.112 + 0.034 × PC-WT) and AVI (PC-AVI = - 0.324 + 1.320 × PC-WT). The decreasing rates of WC, HC, body fat percentage, WHtR, ABSI, and AVI in relation to the weight loss were clinically and statistically significant. This means that a healthy weight lowering diet would be accompanied by decreasing the body fat, body size and also the risk of morbidities.


Assuntos
Antropometria , Dieta Redutora , Obesidade , Sobrepeso , Redução de Peso , Humanos , Feminino , Obesidade/dietoterapia , Obesidade/fisiopatologia , Adulto , Dieta Redutora/métodos , Pessoa de Meia-Idade , Sobrepeso/dietoterapia , Sobrepeso/fisiopatologia , Modelos Teóricos , Estudos Longitudinais , Índice de Massa Corporal , Circunferência da Cintura , Relação Cintura-Quadril , Composição Corporal , Restrição Calórica/métodos
20.
Physiol Behav ; 283: 114614, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38866299

RESUMO

The aim of this study was to analyze the impact of endurance training (E), strength training (S), or combined training (SE), along with caloric restriction diet, compared to only diet and physical activity recommendations (C, control), on the quality of life in individuals with obesity. One hundred and twenty obese participants (61 males), aged 18-50 years, were randomly assigned to the different experimental groups, with ninety-six completing the study. The intervention period spanned 22 weeks (3 times per week). All subjects followed a hypocaloric diet, and quality of life was assessed using the SF36 questionnaire before and after the training program. A significant improvement was observed in emotional role following the S (Baseline: 85.06 ± 30.32; Post: 96.00 ± 11.06; p = 0.030) and SE (Baseline: 76.67 ± 35.18; Post: 91.30 ± 22.96; p = 0.010) programs, but not after E (Baseline: 83.33 ± 29.40; Post: 78.26 ± 35.69; p = 0.318) and C (Baseline: 77.01 ± 34.62; Post: 79.37 ± 37.23; p = 0.516). No significant main effect was observed in any other outcome measured. Overall, all groups demonstrated improvements in quality-of-life outcomes. In conclusion, any physical exercise intervention combined with caloric restriction, physical activity recommendations, and nutritional habits resulted in an enhancement of quality of life.


Assuntos
Restrição Calórica , Exercício Físico , Obesidade , Qualidade de Vida , Humanos , Masculino , Qualidade de Vida/psicologia , Feminino , Adulto , Pessoa de Meia-Idade , Adolescente , Adulto Jovem , Exercício Físico/psicologia , Exercício Físico/fisiologia , Obesidade/psicologia , Obesidade/dietoterapia , Treinamento Resistido , Treino Aeróbico , Inquéritos e Questionários , Resultado do Tratamento
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