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1.
Nutrients ; 16(13)2024 Jun 29.
Article in English | MEDLINE | ID: mdl-38999830

ABSTRACT

Insufficient dietary fiber intake can negatively affect the intestinal microbiome and, over time, may result in gut dysbiosis, thus potentially harming overall health. This randomized controlled trial aimed to improve the gut microbiome of individuals with low dietary fiber intake (<25 g/day) during a 7-week synbiotic intervention. The metabolically healthy male participants (n = 117, 32 ± 10 y, BMI 25.66 ± 3.1 kg/m2) were divided into two groups: one receiving a synbiotic supplement (Biotic Junior, MensSana AG, Forchtenberg, Germany) and the other a placebo, without altering their dietary habits or physical activity. These groups were further stratified by their dietary fiber intake into a low fiber group (LFG) and a high fiber group (HFG). Stool samples for microbiome analysis were collected before and after intervention. Statistical analysis was performed using linear mixed effects and partial least squares models. At baseline, the microbiomes of the LFG and HFG were partially separated. After seven weeks of intervention, the abundance of SCFA-producing microbes significantly increased in the LFG, which is known to improve gut health; however, this effect was less pronounced in the HFG. Beneficial effects on the gut microbiome in participants with low fiber intake may be achieved using synbiotics, demonstrating the importance of personalized synbiotics.


Subject(s)
Dietary Fiber , Feces , Gastrointestinal Microbiome , Synbiotics , Humans , Synbiotics/administration & dosage , Male , Dietary Fiber/administration & dosage , Adult , Double-Blind Method , Feces/microbiology , Young Adult
3.
Front Endocrinol (Lausanne) ; 15: 1272886, 2024.
Article in English | MEDLINE | ID: mdl-38989003

ABSTRACT

Background: Obesity is associated with impaired glucose metabolism and hepatic insulin resistance. The aim was to investigate the associations of hepatic glucose uptake (HGU) and endogenous glucose production (EGP) to sedentary behavior (SB), physical activity (PA), cardiorespiratory fitness, dietary factors, and metabolic risk markers. Methods: Forty-four adults with metabolic syndrome (mean age 58 [SD 7] years, BMI ranging from 25-40kg/; 25 females) were included. HGU was measured by positron emission tomography during the hyperinsulinemic-euglycemic clamp. EGP was calculated by subtracting the glucose infusion rate during clamp from the glucose rate of disappearance. SB and PA were measured with hip-worn accelerometers (26 [SD3] days). Fitness was assessed by maximal bicycle ergometry with respiratory gas measurements and dietary intake of nutrients by 4-day food diaries. Results: HGU was not associated with fitness or any of the SB or PA measures. When adjusted for sex, age, and body fat-%, HGU was associated with whole-body insulin sensitivity (ß=0.58), water-insoluble dietary fiber (ß=0.29), energy percent (E%) of carbohydrates (ß=-0.32), saccharose (ß=-0.32), mono- and polyunsaturated fatty acids (ß=0.35, ß=0.41, respectively). EGP was associated with whole-body insulin sensitivity (ß=-0.53), and low-density lipoprotein cholesterol [ß=-0.31], and when further adjusted for accelerometry wear time, EGP was associated with standing [ß=-0.43]. (p-value for all< 0.05). Conclusions: Standing more, consuming a diet rich in fiber and unsaturated fatty acids, and a lower intake of carbohydrates, especially sugar, associate beneficially with hepatic insulin sensitivity. Habitual SB, PA, or fitness may not be the primary modulators of HGU and EGP. However, these associations need to be confirmed with intervention studies.


Subject(s)
Dietary Fiber , Fatty Acids, Unsaturated , Insulin Resistance , Liver , Metabolic Syndrome , Sedentary Behavior , Humans , Female , Male , Middle Aged , Metabolic Syndrome/metabolism , Dietary Fiber/administration & dosage , Liver/metabolism , Fatty Acids, Unsaturated/metabolism , Fatty Acids, Unsaturated/administration & dosage , Standing Position , Exercise , Aged , Adult , Glucose Clamp Technique , Cardiorespiratory Fitness/physiology
4.
Br Poult Sci ; 65(4): 465-477, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38994755

ABSTRACT

1. A stimbiotic (STB) is any feed additive that stimulates caeca fibre fermentation, although the additive itself contributes little to the caeca short-chain fatty acid (SCFA) production. A 42 d experiment investigated the interactive effects of STB and wheat bran (WB) in broiler chickens receiving maize or wheat-based diets.2. The treatments were arranged in a 2 × 2 × 2 factorial (eight replicates each), the dietary factors being diet (maize-SBM or wheat-SBM), STB (with or without) and WB (0 or 50 g/kg). Jejunal tissue, gizzard, jejunal and ileal digesta and caecal contents were collected on d 18 and 42.3. Gizzard pH tended to decrease with STB (p = 0.06) supplementation and was lower in birds fed wheat- compared to maize-based diets on d 18 (p < 0.05). Birds receiving diets with WB had higher jejunum pH on d 18 (p < 0.05).4. Total short-chain fatty acids (SCFA) in the caeca on d 18 and isobutyrate on d 42 were higher (p < 0.05) for maize compared with wheat-based diets. However, on d 42, acetate, butyrate and total SCFA were higher (p < 0.05) for wheat-based compared with maize-based diets.5. On d 18, STB and WB inclusion increased villi height (VH; p < 0.05) and VH to crypt depth ratio (VH/CD), respectively (p < 0.05). On d 42, VH (p < 0.05) and VH/CD were higher in wheat-based diets (p < 0.05). The VH/CD ratio was lower with STB supplementation (p < 0.05). Marker-corrected pentose oligosaccharides (Pent)4 and (Pent)5 concentrations in the ileal digesta were reduced (p < 0.05) with STB supplementation. In addition, STB decreased (Pent)3 concentration in maize-, but not wheat-based diets (p < 0.05).6. In conclusion, both WB and STB influenced gastrointestinal pH and jejunum histomorphology of broilers without increasing oligosaccharide concentration in the ileum and SCFA in the caeca.


Subject(s)
Animal Feed , Animal Nutritional Physiological Phenomena , Cecum , Chickens , Diet , Dietary Fiber , Fatty Acids, Volatile , Jejunum , Oligosaccharides , Triticum , Zea mays , Animals , Chickens/physiology , Chickens/growth & development , Animal Feed/analysis , Fatty Acids, Volatile/metabolism , Zea mays/chemistry , Triticum/chemistry , Diet/veterinary , Jejunum/anatomy & histology , Dietary Fiber/metabolism , Dietary Fiber/analysis , Dietary Fiber/administration & dosage , Oligosaccharides/administration & dosage , Dietary Supplements/analysis , Male , Random Allocation
5.
Nutrients ; 16(14)2024 Jul 10.
Article in English | MEDLINE | ID: mdl-39064648

ABSTRACT

The complex interactions between intestinal microbiota and metabolic disorders are well-documented, with implications for glucose metabolism, energy expenditure, and intestinal permeability. Prebiotics induce beneficial changes in gut microbiota composition in prediabetes, while postbiotics can enhance gut barrier function, complementing each other to improve glucose metabolism and insulin sensitivity. This study investigated the effects of a 12-week dietary fibre (DF) supplement on gut health, metabolic function, and diet. The supplement contained konjac glucomannan (KGM), galacto-oligosaccharides (GOSs), and exopolysaccharides (EPSs) from Bifidobacterium breve. In a randomised, double-blind, placebo-controlled, parallel-group clinical trial, 53 prediabetic volunteers were randomly assigned to either a daily DF supplement (YMETA) or a placebo (cellulose microcrystalline) for 12 weeks, followed by a 4-week follow-up. Measurements included gut microbiota composition, glycated haemoglobin (HbA1c), fasting plasma glucose (FPG), plasma lipids, anthropometry, body composition, blood pressure, and dietary intake. The intervention group showed a significant increase in alpha diversity and butyrate-producing bacteria, with reductions in HbA1c and FPG levels below prediabetes thresholds. No significant changes were observed in the placebo group. This study suggests that manipulating the human gut microbiome through dietary interventions could be a promising therapeutic approach to managing prediabetes and preventing or delaying diabetes.


Subject(s)
Bifidobacterium breve , Dietary Fiber , Gastrointestinal Microbiome , Glycated Hemoglobin , Mannans , Oligosaccharides , Prebiotics , Prediabetic State , Humans , Gastrointestinal Microbiome/drug effects , Double-Blind Method , Prediabetic State/therapy , Prediabetic State/diet therapy , Prebiotics/administration & dosage , Glycated Hemoglobin/metabolism , Male , Female , Oligosaccharides/administration & dosage , Middle Aged , Dietary Fiber/pharmacology , Dietary Fiber/administration & dosage , Adult , Mannans/pharmacology , Blood Glucose/metabolism , Dietary Supplements , Galactose
6.
Nutrients ; 16(14)2024 Jul 11.
Article in English | MEDLINE | ID: mdl-39064672

ABSTRACT

Imbalanced dietary intake is associated with the development of inflammatory bowel diseases (IBDs) and is often observed during the active phases of Crohn's disease (CD) and ulcerative colitis (UC). Cumulative data also suggest the potential for dietary manipulation in avoiding IBD relapse. However, there is a paucity of dietary data from patients in clinical remission to guide such an approach. Our study aimed to characterize the dietary pattern and adequacy of patients with IBD in clinical remission. Data on dietary intake (three alternate 24 h food records) were collected from 40 patients with IBD (20 CD and 20 UC) and 45 gender-matched healthy controls (HC). Statistical comparisons between patients and controls employed Student's t-test, Mann-Whitney U, chi-squared, and Fisher's exact tests. The adequacy of dietary intake of IBD patients was further studied by assessing the nutrient inadequacy prevalence, estimated using the Dietary Reference Intakes (DRI) framework and the Estimated Average Requirement (EAR) parameter. We observed significant dietary imbalances among patients with IBD compared to the HC group, marked by disparities in both macronutrient and micronutrient intakes. Inadequacies with frequencies >80% were observed for the ingestion of total fiber and 13 micronutrients in IBD patients. Our preliminary findings suggest that imbalanced dietary intake is also characteristic among individuals with IBD during clinical remission, corroborating the need for dietary interventions in this population.


Subject(s)
Colitis, Ulcerative , Crohn Disease , Diet , Inflammatory Bowel Diseases , Remission Induction , Humans , Female , Male , Adult , Colitis, Ulcerative/diet therapy , Crohn Disease/diet therapy , Middle Aged , Inflammatory Bowel Diseases/diet therapy , Micronutrients/administration & dosage , Case-Control Studies , Young Adult , Dietary Fiber/administration & dosage , Nutritional Status , Diet Records
7.
Nutrients ; 16(14)2024 Jul 13.
Article in English | MEDLINE | ID: mdl-39064702

ABSTRACT

Dietary components, including dietary fiber, unsaturated fatty acids, and polyphenols, along with meal timing and spacing, significantly affect the microbiota's capacity to produce various metabolites essential for quality sleep and overall health. This review explores the role of gut microbiota in regulating sleep through various metabolites such as short-chain fatty acids, tryptophan, serotonin, melatonin, and gamma-aminobutyric acid. A balanced diet rich in plant-based foods enhances the production of these sleep-regulating metabolites, potentially benefiting overall health. This review aims to investigate how dietary habits affect gut microbiota composition, the metabolites it produces, and the subsequent impact on sleep quality and related health conditions.


Subject(s)
Diet , Gastrointestinal Microbiome , Sleep Quality , Gastrointestinal Microbiome/physiology , Humans , Dietary Fiber/administration & dosage , Melatonin , Feeding Behavior/physiology , Polyphenols , Sleep/physiology , Fatty Acids, Volatile/metabolism , Serotonin/metabolism
8.
Nutrients ; 16(14)2024 Jul 20.
Article in English | MEDLINE | ID: mdl-39064788

ABSTRACT

Bifidobacterium animalis subsp. lactis GCL2505 in combination with inulin has been shown to have several health benefits, including an improvement in the intestinal microbiota and a reduction in human visceral fat. Previous studies have suggested that the visceral fat reduction of GCL2505 and inulin may be achieved by improving daily energy expenditure. This parallel, placebo-controlled, randomized, double-blind study was conducted to evaluate the effects of GCL2505 and inulin on resting energy expenditure (REE) in overweight or mildly obese Japanese adults (n = 44). Participants ingested 1 × 1010 colony forming units of GCL2505 and 5.0 g of inulin daily for 4 weeks. REE score at week 4 was set as the primary endpoint. At week 4, the REE score of the GCL2505 and inulin group was significantly higher than that of the placebo group, with a difference of 84.4 kcal/day. In addition, fecal bifidobacteria counts were significantly increased in the GCL2505 and inulin group. Our results indicated that the intake of GCL2505 and inulin improves energy balance, which is known to be a major factor of obesity, by modulating the microbiota in the gut. This is the first report to demonstrate the effects of probiotics and dietary fiber on REE in humans.


Subject(s)
Dietary Fiber , Feces , Gastrointestinal Microbiome , Inulin , Obesity , Probiotics , Humans , Double-Blind Method , Male , Female , Probiotics/administration & dosage , Dietary Fiber/administration & dosage , Dietary Fiber/pharmacology , Middle Aged , Adult , Inulin/administration & dosage , Inulin/pharmacology , Feces/microbiology , Gastrointestinal Microbiome/physiology , Gastrointestinal Microbiome/drug effects , Obesity/microbiology , Obesity/diet therapy , Energy Metabolism , Bifidobacterium , Overweight/microbiology , Overweight/diet therapy , Bifidobacterium animalis , Japan , Basal Metabolism/drug effects
9.
Nutrients ; 16(11)2024 May 28.
Article in English | MEDLINE | ID: mdl-38892591

ABSTRACT

The nutrient intake of persons with diabetes placed on a low-carbohydrate diet remains unclear. This study aimed to assess nutrient intake in persons with type 2 diabetes mellitus treated with a low-carbohydrate diet. The brief-type self-administered diet history questionnaire was used to collect the dietary information of 335 outpatients at Kitasato Institute Hospital, while their clinical characteristics were collected from their electronic medical records. The median age, HbA1c level, and body mass index of the participants were 68 (60-74) years, 49 (45-55) mmol/mol [6.7 (6.3-7.2)%], and 24.0 (21.8-26.7) kg/m2, respectively; median energy intake was 1457 (1153-1786) kcal/day; and protein-energy, fat-energy, and available carbohydrate-energy ratios were 18.6 (15.7-21.4)%E, 36.8 (31.6-43.2)%E, and 34.6 (26.0-42.4)%E, respectively. As the available carbohydrate-energy ratio decreased, the fat-energy ratio increased significantly. The total dietary fibre and salt intake were 7.1 (5.6-8.4) g/1000 kcal and 6.5 (5.6-7.5) g/1000 kcal, respectively. Japanese individuals with type 2 diabetes mellitus placed on a low-carbohydrate diet had a fat-to-energy ratio exceeding 30%, while the fat-energy ratio increased as the carbohydrate-energy ratio decreased.


Subject(s)
Diabetes Mellitus, Type 2 , Diet, Carbohydrate-Restricted , Energy Intake , Humans , Diabetes Mellitus, Type 2/diet therapy , Diet, Carbohydrate-Restricted/methods , Male , Middle Aged , Female , Aged , Japan , Diet Surveys , Dietary Fiber/administration & dosage , Dietary Carbohydrates/administration & dosage , Glycated Hemoglobin/metabolism , Glycated Hemoglobin/analysis , Body Mass Index , East Asian People
10.
Curr Opin Clin Nutr Metab Care ; 27(4): 355-360, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38836788

ABSTRACT

PURPOSE OF REVIEW: This review highlights recent developments in understanding the role of dietary fibre and specific fibre types on risk and management of cardiometabolic disease with a focus on the causal pathways leading to cardiometabolic diseases, namely weight management, glycaemic control, and lipid levels, as well as the latest findings for cardiovascular disease outcomes such as coronary heart disease, stroke, and mortality. Evidence for mechanisms through gut microbiota are also briefly reviewed. RECENT FINDINGS: Dietary fibre intake is associated with improved weight management, the extent of which may depend on the subtype of dietary fibre. Overall dietary fibre intake reduces blood glucose and HbA1c, however soluble fibres may be particularly effective in reducing HbA1c, fasting blood glucose and blood lipids. Individual meta-analyses and umbrella reviews of observational studies on dietary fibre, as well as major fibre types, observed inverse associations with incident coronary heart disease, stroke, and mortality due to cardiovascular disease. As different types of fibres exerted different health benefits, fibre diversity (i.e. combinations of fibres) should be further investigated. SUMMARY: Dietary fibres improve both short-term and long-term cardiometabolic disease risk factors and outcomes, and thus should be on every menu.


Subject(s)
Cardiovascular Diseases , Dietary Fiber , Gastrointestinal Microbiome , Humans , Dietary Fiber/administration & dosage , Cardiovascular Diseases/prevention & control , Gastrointestinal Microbiome/physiology , Cardiometabolic Risk Factors , Blood Glucose/metabolism , Lipids/blood
11.
Gut Microbes ; 16(1): 2367301, 2024.
Article in English | MEDLINE | ID: mdl-38913541

ABSTRACT

Resistant starch (RS) consumption can have beneficial effects on metabolic health, but the response, in terms of effects on the gut microbiota and host physiology, varies between individuals. Factors predicting the response to RS are not yet established and would be useful for developing precision nutrition approaches that maximize the benefits of dietary fiber intake. We sought to identify predictors of gut microbiota response to RS supplementation. We enrolled 76 healthy adults into a 7-week crossover study with 59 individuals completing the study. Participants consumed RS type 2 (RS2), RS type 4 (RS4), and digestible starch, for 10 d each with 5-d washout periods in between. We collected fecal and saliva samples and food records during each treatment period. We performed 16S rRNA gene sequencing and measured fecal short-chain fatty acids (SCFAs), salivary amylase (AMY1) gene copy number, and salivary amylase activity (SAA). Dietary fiber intake was predictive of the relative abundance of several amplicon sequence variants (ASVs) at the end of both RS treatments. AMY1-related metrics were not predictive of response to RS. SAA was only predictive of the relative abundance of one ASV after digestible starch supplementation. Interestingly, SCFA concentrations increased the most during digestible starch supplementation. Treatment order (the order of consumption of RS2 and RS4), alpha diversity, and a subset of ASVs were predictive of SCFA changes after RS supplementation. Based on our findings, dietary fiber intake and gut microbiome composition would be informative if assessed prior to recommending RS supplementation because these data can be used to predict changes in specific ASVs and fecal SCFA concentrations. These findings lay a foundation to support the premise that using a precision nutrition approach to optimize the benefits of dietary fibers such as RS could be an effective strategy to compensate for the low consumption of dietary fiber nationwide.


Subject(s)
Bacteria , Cross-Over Studies , Dietary Fiber , Dietary Supplements , Fatty Acids, Volatile , Feces , Gastrointestinal Microbiome , RNA, Ribosomal, 16S , Saliva , Starch , Humans , Dietary Fiber/metabolism , Dietary Fiber/administration & dosage , Male , Female , Feces/microbiology , Feces/chemistry , Adult , Fatty Acids, Volatile/metabolism , Fatty Acids, Volatile/analysis , Starch/metabolism , Saliva/microbiology , Saliva/chemistry , Dietary Supplements/analysis , Bacteria/classification , Bacteria/genetics , Bacteria/isolation & purification , Bacteria/metabolism , RNA, Ribosomal, 16S/genetics , Young Adult , Middle Aged , Resistant Starch/metabolism
12.
Maturitas ; 186: 108012, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38705818

ABSTRACT

INTRODUCTION: Data on nutrient and diet quality outcomes when additional beans are consumed as part of the typical American dietary pattern are scarce. The purpose of this study was to assess the effect of increased bean consumption, in the typical American dietary pattern, on the intake of shortfall nutrients and overall diet quality. METHODS: Using data from the US National Health and Nutrition Examination Survey, 2001-2018, the current analyses modeled the addition of one and two servings of canned and dried beans in all adults (N = 44,574; ≥19 y), younger adults (N = 23,554; 19-50 y) and older adults (N = 21,020; ≥51 y). The beans considered were kidney beans, black beans, chickpeas, and pinto beans. RESULTS: The modeling of beans to the typical American dietary pattern resulted in significant increases in the intake of several shortfall nutrients, including dietary fiber, potassium, magnesium, iron, folate, and choline (p's < 0.0001). Modeling 1 and 2 servings of beans daily to the US typical dietary pattern significantly increased overall diet quality in all adult age groups considered. Total diet quality, as measured by Healthy Eating Index-2015 scores, was 15-16 % greater with an additional serving of beans and 19-20 % higher with 2 servings of beans relative to the US typical dietary pattern (p values<0.0001). CONCLUSIONS: Dietary patterns that are rich in beans are associated with significantly higher diet quality scores and greater intake of shortfall nutrients, including nutrients of public health concern. Dietary guidance should consider the health benefits associated with the promotion of increased consumption of canned and dry beans in dietary patterns as benefits seen in younger adults continue to older adulthood.


Subject(s)
Diet , Fabaceae , Nutrition Surveys , Humans , Adult , Middle Aged , Diet/statistics & numerical data , Young Adult , United States , Female , Male , Aged , Nutrients , Dietary Fiber/administration & dosage , Dietary Patterns
13.
Behav Brain Res ; 470: 115048, 2024 Jul 26.
Article in English | MEDLINE | ID: mdl-38761857

ABSTRACT

BACKGROUND: Obesity is a worldwide public health problem associated with cognitive and mental health problems in both humans and rats. Studies assessing the effect of fiber supplementation on behavioral deficits and oxidative stress caused by high-fat diet (HFD) consumption in female rats are still scarce. We hypothesized that HFD consumption would lead to anxiety-related behavior and hepatic oxidative stress and that inulin would protect against these changes. We analyzed the impact of HFD-induced obesity combined with fiber supplementation (inulin) on anxiety-related defensive behavior and hepatic oxidative stress. RESULTS: Female rats were fed a high-fat diet (HFD; 45%) for nine weeks to induce obesity. The administration of inulin was found to decrease the adiposity index in both the control and obese groups. The consumption of a HFD combined with inulin supplementation resulted in a reduction in both CAT activity and carbonylated protein levels, leading to a shift in the hepatic redox balance. Interestingly, the behavioral data were conflicting. Specifically, animals that consumed a high-fat diet and received inulin showed signs of impaired learning and memory caused by obesity. The HFD did not impact anxiety-related behaviors in the female rats. However, inulin appears to have an anxiolytic effect, in the ETM, when associated with the HFD. On the other hand, inulin appears to have affected the locomotor activity in the HFD in both open field and light-dark box. CONCLUSION: Our results show that consumption of a HFD induced obesity in female rats, similar to males. However, HFD consumption did not cause a consistent increase in anxiety-related behaviors in female Wistar rats. Treatment with inulin at the dosage used did not exert consistent changes on the behavior of the animals, but attenuated the abdominal WAT expansion and the hepatic redox imbalance elicited by high-fat diet-induced obesity.


Subject(s)
Anxiety , Diet, High-Fat , Inulin , Liver , Obesity , Oxidative Stress , Rats, Wistar , Animals , Female , Inulin/pharmacology , Inulin/administration & dosage , Diet, High-Fat/adverse effects , Oxidative Stress/drug effects , Oxidative Stress/physiology , Liver/metabolism , Liver/drug effects , Anxiety/metabolism , Obesity/metabolism , Rats , Dietary Supplements , Dietary Fiber/pharmacology , Dietary Fiber/administration & dosage , Behavior, Animal/drug effects , Behavior, Animal/physiology , Disease Models, Animal
14.
Exp Gerontol ; 193: 112474, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38815706

ABSTRACT

BACKGROUND: Aging triggers intricate physiological changes, particularly in whole-body fat-free mass (FFM) and handgrip strength, affecting overall health and independence. Despite existing research, the broader significance of how muscle health is affected by the intricate interplay of lifestyle factors simultaneously during aging needs more exploration. This study aims to examine how nutrition, physical activity, and sleep impact on FFM and handgrip strength in middle-aged men and women, facilitating future personalized recommendations for preserving muscle health. METHODS: The cross-sectional analysis of the UK Biobank involved 45,984 individuals (54 % women) aged 40-70 years with a complete dataset. Multiple linear regression explored determinants of FFM and handgrip strength, considering traditional, socio-demographics, medication use and smoking as covariates, with sex and age (younger and older than 55 years) stratifications. RESULTS: In older men and women, higher physical activity beneficially affect both FFM (respectively Β = 3.36 × 10-3, p-value = 1.66 × 10-3; Β = 2.52 × 10-3, p-value = 3.57 × 10-4) and handgrip strength (Β = 6.05 × 10-3, p-value = 7.99 × 10-5, Β = 8.98 × 10-3, p-value = 2.95 × 10-15). Similar results were found in fiber intake for FFM in older men and women (respectively B = 3.00 × 10-2, p-value = 2.76 × 10-5; B = 2.68 × 10-2, p-value = 1.78 × 10-9) and handgrip strength (Β = 3.27 × 10-2, p-value = 1.40 × 10-3; Β = 3.12 × 10-2, p-value = 1.34 × 10-5). Other lifestyle factors influence FFM and handgrip strength differently. Key determinants influencing handgrip strength included higher protein intake, lower water intake, higher alcohol intake, and extended sleep duration whereas mainly higher water intake is associated with higher FFM. CONCLUSIONS: In both men and women, the main factors associated with FFM and handgrip strength are physical activity and fiber intake, which may underlie a connection between gut and muscle health. Given the observed complexity of muscle health in the age and sex strata, further longitudinal research is needed to provide personalized lifestyle recommendations.


Subject(s)
Aging , Dietary Fiber , Exercise , Hand Strength , Muscle, Skeletal , Humans , Male , Female , Middle Aged , Cross-Sectional Studies , Hand Strength/physiology , Aged , Exercise/physiology , United Kingdom , Aging/physiology , Adult , Dietary Fiber/administration & dosage , Muscle, Skeletal/physiology , Biological Specimen Banks , Body Composition , Sleep/physiology , UK Biobank
15.
Sci Rep ; 14(1): 10631, 2024 05 09.
Article in English | MEDLINE | ID: mdl-38724633

ABSTRACT

Higher fat-to-muscle mass ratio (FMR) is reported to be a risk factor for various diseases, including type 2 diabetes and cardiovascular diseases, and mortality. Although this association suggests that reducing FMR may help to prevent certain diseases and mortality, the relationship between FMR and lifestyle factors is unclear. Therefore, we performed a cross-sectional study with the aim to elucidate this relationship. This cross-sectional study included 1518 healthy Japanese adults aged 30 to 64 years. We measured FMR in the whole body, arms, legs, and trunk and assessed various lifestyle factors. Then, we performed forced entry multiple regression analyses for FMR with the following variables: sex, age, physical activity, dietary intake, sleep quality, cigarette smoking, stress levels, and body mass index. As a result, whole-body and regional FMRs were correlated with female sex (ß = 0.71); age (ß = 0.06); physical activity (ß = - 0.07); dietary intake of protein (ß = - 0.12), carbohydrate (ß = 0.04), sodium (ß = 0.13), and fiber (ß = - 0.16); and body mass index (ß = 0.70). The results suggest that in the Japanese middle-aged population, low FMR is associated with certain lifestyle factors, i.e. higher physical activity and a diet with higher protein and fiber and lower carbohydrate and sodium, independent of age, sex, and body mass index.


Subject(s)
Dietary Carbohydrates , Dietary Fiber , Dietary Proteins , Exercise , Humans , Male , Female , Cross-Sectional Studies , Middle Aged , Adult , Exercise/physiology , Dietary Fiber/administration & dosage , Dietary Proteins/administration & dosage , Dietary Carbohydrates/administration & dosage , Body Mass Index , Japan , Muscle, Skeletal/physiology , Muscle, Skeletal/metabolism , Sodium, Dietary/administration & dosage , Adipose Tissue/metabolism , Body Composition , Life Style
16.
BMC Gastroenterol ; 24(1): 160, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38730369

ABSTRACT

PURPOSE: The link between dietary fiber intake and Non-alcoholic fatty liver disease (NAFLD) is under exploration, yielding inconsistent findings. Considering the limitations of previous research and the significance of dietary fiber in hepatic steatosis, this study investigates the association between dietary fiber intake and Controlled Attenuation Parameter (CAP) among 5935 participants from the National Health and Nutrition Examination Survey (NHANES). MATERIALS AND METHODS: Multivariable regression was used to evaluate the association between dietary fiber intake and CAP. Smoothed curve fitting and threshold effect analysis techniques were applied to illustrate non-linear relationships. RESULTS: After adjusting for other variables, a negative correlation emerged between dietary fiber intake and CAP. Subgroup analysis by gender and race/ethnicity revealed a sustained negative association between dietary fiber intake and CAP among females and Whites. Additionally, an inverted U-shaped relationship was observed between dietary fiber intake and CAP among women and other race, with inflection points at 13.80 g/day and 33.45 g/day, respectively. CONCLUSION: Our research indicates that in the majority of Americans, there is an inverse relationship between dietary fiber intake and hepatic steatosis. This relationship exhibits an inverted U-shaped curve in women and other race, with a threshold effect. The findings of this study hold potential significance for clinical nutrition interventions, personalized dietary guidance, and advancing research into the diet-disease mechanism relationship.


Subject(s)
Dietary Fiber , Non-alcoholic Fatty Liver Disease , Nutrition Surveys , Humans , Dietary Fiber/administration & dosage , Female , Male , Non-alcoholic Fatty Liver Disease/epidemiology , Middle Aged , Adult , United States/epidemiology , Sex Factors
17.
Nutrients ; 16(9)2024 Apr 28.
Article in English | MEDLINE | ID: mdl-38732569

ABSTRACT

Previous studies have identified a role for the gut microbiome and its metabolic products, short-chain fatty acids (SCFAs), in the maintenance of muscle mass and physical function (i.e., the gut-muscle axis), but interventions aimed at positively impacting the gut-muscle axis during aging are sparse. Gut bacteria ferment soluble fiber into SCFAs, and accordingly, to evaluate the impact of a high-soluble-fiber diet (HSFD) on the gut-muscle axis, we fed a whole-food, 3×-higher-soluble fiber-containing diet (relative to standard chow) to aged (98 weeks) C57BL/6J mice for 10 weeks. The HSFD significantly altered gut bacterial community structure and composition, but plasma SCFAs were not different, and a positive impact on muscle-related measures (when normalized to body weight) was not identified. However, when evaluating sex differences between dietary groups, female (but not male) HSFD-fed mice had significant increases for SCFAs, the quadriceps/body weight (BW) ratio, and treadmill work performance (distance run × BW), which suggests that an HSFD can positively impact the gut-muscle axis. In contrast, consistent effects in both male and female HSFD-fed mice included weight and fat loss, which suggests a positive role for an HSFD on the gut-adipose axis in aged mice.


Subject(s)
Aging , Dietary Fiber , Fatty Acids, Volatile , Gastrointestinal Microbiome , Mice, Inbred C57BL , Animals , Dietary Fiber/administration & dosage , Gastrointestinal Microbiome/physiology , Male , Female , Fatty Acids, Volatile/metabolism , Mice , Aging/physiology , Muscle, Skeletal/metabolism , Body Weight , Diet
18.
Med J Malaysia ; 79(3): 331-336, 2024 May.
Article in English | MEDLINE | ID: mdl-38817067

ABSTRACT

INTRODUCTION: Hypospadias is a congenital malformation of the urethral meatus in the ventral penis that requires surgery. Fibre and fluid intake can accelerate the healing process, act as an anti-inflammatory and support the success of surgery. Based on hypospadias objective scoring evaluation (HOSE) scoring, this study aims to determine whether a high-fibre diet and adequate fluid intake affect the outcome of hypospadias surgery. MATERIALS AND METHODS: This analytic observational study used a case-control study design on 104 post-operative hypospadias patients at Ulin and Siaga Hospital Banjarmasin from 2018 to 2023 with quota sampling. Data were collected using personal data forms with hypospadias objective scoring evaluation (HOSE) and semi-quantitativefood frequency questionnaire (SQ-FFQ), which were analysed using a multinomial logistic regression test. RESULTS: Patients with less-fibre-intake had a 99.10% lower chance of having an excellent surgical outcome than patients with moderate-fibre-intake (Adjusted Odds Ratio, Adj. OR: 0.009, 95% Confidence Intervals; 95%CI: 0.000, 0.249), and it was statistically significant. The study did not find any association between fluid intake and surgical outcome, this could be due to the fact that most of the patient had good fluid intake. CONCLUSION: The study found that high fibre intake increases the success of hypospadia surgery.


Subject(s)
Dietary Fiber , Hypospadias , Humans , Hypospadias/surgery , Male , Case-Control Studies , Dietary Fiber/administration & dosage , Child, Preschool , Child , Treatment Outcome , Drinking , Infant , Urologic Surgical Procedures, Male/methods
19.
Trop Anim Health Prod ; 56(4): 159, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38730223

ABSTRACT

Cell components soluble in neutral detergent are a diverse group, both compositionally and nutritionally. The present study aimed to evaluate production responses, behavior (eating, ruminating, and idling), and nitrogen balance of dairy goats fed different ratios of neutral detergent-soluble carbohydrate fractions. Five multiparous Alpine does with mean ± SD initial body mass of 49.5 ± 7.9 kg and 60 days of lactation were randomly assigned in a 5 × 5 Latin square design. The treatments were the ratios of starch (starch associated with soluble sugar [StSS]) to neutral detergent-soluble fiber (NDSF) (StSS:NDSF): 0.89, 1.05, 1.24, 1.73, and 2.92. No effect was observed (P > 0.05) of StSS:NDSF on the intakes of neutral detergent fiber (NDF) and NDSC. However, DM intake showed a quadratic behavior (P = 0.049). The ingestive behavior was affected by StSS:NDSF linearly increased (P = 0.002) the feeding efficiency. The increase in StSS:NDSF caused a linear increase in fecal (P = 0.011), urinary (P < 0.001), and milk nitrogen excretion (P = 0.024). The increase in StSS:NDSF affected (P = 0.048) milk yield and net energy lactation (P = 0.036). In conclusion, dairy goats experience reduced dry matter intake and milk yield when subjected to high-NDSC diets, specifically those above 1.24 StSS:NDSF ratio. Elevated NDSC levels in the diets lead to decreased feeding time, whereas rumination remains unaffected. Nitrogen losses in goats increase linearly with high-NDSC diets, and a significant impact on nitrogen balance.


Subject(s)
Animal Feed , Animal Nutritional Physiological Phenomena , Diet , Goats , Lactation , Milk , Nitrogen , Animals , Goats/physiology , Female , Nitrogen/metabolism , Nitrogen/analysis , Diet/veterinary , Milk/chemistry , Animal Feed/analysis , Feeding Behavior/drug effects , Random Allocation , Dietary Fiber/analysis , Dietary Fiber/administration & dosage , Dietary Carbohydrates/analysis , Dietary Carbohydrates/administration & dosage
20.
J Pediatr Surg ; 59(8): 1633-1637, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38760307

ABSTRACT

BACKGROUND: Children with functional constipation require prolonged laxative administration for proper emptying. Whether these laxatives can be weaned after better functioning is achieved is unknown. We aim to describe a standardized protocol for stimulant laxative weaning and its early outcomes. METHODS: Patients were candidates for weaning if they had been on a stable laxative dose for six months, defined as one bowel movement per day with no soiling, impaction, or enemas. Laxative dose was decreased by 10-25% with re-evaluation every two weeks. If patients remained well without constipation, dose was weaned further by 10-25%. If there were worsening of symptoms, lower dose was maintained for 3-6 months until re-evaluation. RESULTS: There were a total of sixteen patients evaluated. Median age was 12.7 years [IQR: 11.7-15.3] with laxative duration of 8.0 years [IQR: 5.4-10.7]. All patients were on senna; some were on fiber. Median starting senna dose was 71.3 mg [IQR: 54.3-75.0] and median fiber dose was 5.5 g [IQR: 4.0-6.0]. As of most recent follow up, nine patients (56.3%) had weaned off laxatives in 3.7 months [IQR: 1.3-11.6]. For those still on laxatives, median reduction in dose was 41.4 mg [30.0-75.0], and over half weaned their dose by >50%. Almost all (90.9%) of those on high doses were able to wean. CONCLUSION: A standardized laxative weaning process can be successful in patients with functional constipation, especially on high doses. Further prospective studies will be necessary to confirm the success of this protocol. LEVEL OF EVIDENCE: III.


Subject(s)
Clinical Protocols , Constipation , Laxatives , Humans , Constipation/drug therapy , Pilot Projects , Laxatives/therapeutic use , Laxatives/administration & dosage , Child , Male , Female , Adolescent , Senna Extract/therapeutic use , Senna Extract/administration & dosage , Dietary Fiber/administration & dosage , Dietary Fiber/therapeutic use , Drug Administration Schedule , Treatment Outcome
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