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1.
Eur J Nutr ; 58(4): 1615-1624, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29725824

RESUMO

PURPOSE: The primary and secondary objectives were to investigate the triglyceride (TG) and LDL-cholesterol (LDL-C) lowering effects of a spread with added plant sterols (PS) and fish oil as compared to a placebo spread. METHODS: This study had a randomized, double-blind, placebo-controlled, parallel group design with two intervention arms. Following a 2-week placebo run-in period, 260 healthy individuals with modestly elevated blood TG (≥ 1.4 mmol/L) and LDL-C (≥ 3.4 mmol/L) concentrations consumed either the placebo or intervention spread for 4 weeks. The intervention spread contained 2.0 g/day PS and 1.0 g/day eicosapentaenoic acid (EPA) + docosahexanoic acid (DHA) from fish oil. Fasting serum lipids and apolipoproteins (Apo) (exploratory) were measured at the end of the run-in and intervention phases. RESULTS: Four-week consumption of the intervention spread resulted in significantly lower TG (- 10.6%, 95% CI - 16.0 to - 4.9%; P < 0.001) and LDL-C concentrations (- 5.2%; 95% CI - 7.8 to - 2.4%) as compared to placebo. Total cholesterol (- 3.9%; 95% CI - 6.1 to - 1.5%), non-HDL-C (- 5.4%; 95% CI - 8.1 to - 2.7%), remnant-cholesterol (- 8.1%; 95% CI - 3.4 to - 12.5%), ApoAII (- 2.9%; 95% CI - 5.5 to - 0.2%), ApoCIII (- 7.7%; 95% CI - 12.1 to - 3.1%) and ApoB (- 3.2%; 95% CI - 5.9 to - 0.4%) concentrations were also significantly lower, as compared to placebo. No significant treatment effects were found for HDL-cholesterol, ApoAI, ApoCII, Apo E or ApoB/ApoAI. CONCLUSIONS: Four-week consumption of the intervention spread led to significant and clinically relevant decreases in serum TG, LDL-C and other blood lipid concentrations. The study was registered at clinicaltrials.gov (NCT02728583).


Assuntos
LDL-Colesterol/sangue , Ácidos Graxos Ômega-3/farmacologia , Óleos de Peixe/farmacologia , Hipercolesterolemia/dietoterapia , Hipertrigliceridemia/dietoterapia , Fitosteróis/farmacologia , Triglicerídeos/sangue , Adolescente , Adulto , Idoso , LDL-Colesterol/efeitos dos fármacos , Método Duplo-Cego , Ácidos Graxos Ômega-3/administração & dosagem , Feminino , Óleos de Peixe/administração & dosagem , Humanos , Hipercolesterolemia/sangue , Hipertrigliceridemia/sangue , Masculino , Fitosteróis/administração & dosagem , Adulto Jovem
2.
Curr Cardiol Rep ; 18(11): 111, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27650783

RESUMO

Dietary fats have important effects on the risk of cardiovascular disease (CVD). Abundant evidence shows that partial replacement of saturated fatty acids (SAFA) with unsaturated fatty acids improves the blood lipid and lipoprotein profile and reduces the risk of coronary heart disease (CHD). Low-fat diets high in refined carbohydrates and sugar are not effective. Very long-chain polyunsaturated n-3 or omega-3 fatty acids (n-3 VLCPUFA) present in fish have multiple beneficial metabolic effects, and regular intake of fatty fish is associated with lower risks of fatal CHD and stroke. Food-based guidelines on dietary fats recommend limiting the consumption of animal fats high in SAFA, using vegetable oils high in monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA), and eating fatty fish. These recommendations are part of a healthy eating pattern that also includes ample intake of plant-based foods rich in fiber and limited sugar and salt.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Dieta com Restrição de Gorduras/métodos , Dieta Saudável/métodos , Gorduras na Dieta , Serviços Preventivos de Saúde , Doenças Cardiovasculares/fisiopatologia , Gorduras na Dieta/efeitos adversos , Ácidos Graxos Monoinsaturados , Ácidos Graxos Insaturados , Comportamento Alimentar , Humanos , Lipídeos/sangue , Fatores de Risco , Comportamento de Redução do Risco
3.
Appetite ; 107: 268-273, 2016 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-27522037

RESUMO

Triggering of gastro-intestinal bitter taste receptors might have implications for appetite and food intake, but the evidence in humans is mixed and limited to acute studies. We previously reported that 15-days consumption of drinks with purified Hoodia gordonii extract and its taste-matched control both produced similar, significant energy intake (EI) reductions in females in an in-patient setting, with no significant differences between treatments. In that study the control was matched to Hoodia flavour and bitterness using Raisin Flavour (RF), Sucrose Octa Acetate (SOA) and Quassia Extract (QE). As triggering of gastrointestinal bitter receptors might have produced shared effects on EI, our objective here was to assess the effects of sustained exposure to capsules containing the same bitter RF + SOA + QE mix itself on EI, compared to a non-bitter placebo. In this randomized, double-blind study, sixty slightly overweight women in parallel groups consumed twice-daily capsules without (placebo) or with the tastant mixture (0.88 mg SOA, 0.088 mg QE, 0.22 mg RF) on days 1-14. On day 0 all subjects received placebo capsules at 0800 and 1600, ad libitum meals at 0900, 1300, 1700, and snacks after 1900. On day 14 these test procedures were repeated. Changes in EI on days 14 versus 0 between treatment groups were assessed using ANCOVA. Total EI differences on days 14 versus 0 were not significant (mean active-placebo treatment difference -109 kcal, SE 71, P = 0.13), nor was this significant when analyzed separately for each meal within the test day. Body weight changes were negligible. In conclusion, sustained exposure to these encapsulated bitter tastants did not significantly affect EI in overweight females.


Assuntos
Ingestão de Energia , Sobrepeso/dietoterapia , Paladar , Adolescente , Adulto , Apetite , Índice de Massa Corporal , Cápsulas , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Extratos Vegetais/administração & dosagem , Quassia/química , Lanches , Sacarose/administração & dosagem , Sacarose/análogos & derivados , Resultado do Tratamento , Vitis/química , Adulto Jovem
4.
Int J Food Sci Nutr ; 67(4): 372-82, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27046021

RESUMO

Worldwide, the fat composition of spreads and margarines ("spreads") has significantly changed over the past decades. Data on fat composition of US spreads are limited and outdated. This paper compares the fat composition of spreads sold in 2013 to that sold in 2002 in the USA. The fat composition of 37 spreads representing >80% of the US market sales volume was determined by standard analytical methods. Sales volume weighted averages were calculated. In 2013, a 14 g serving of spread contained on average 7.1 g fat and 0.2 g trans-fatty acids and provided 22% and 15% of the daily amounts recommended for male adults in North America of omega-3 α-linolenic acid and omega-6 linoleic acid, respectively. Our analysis of the ingredient list on the food label showed that 86% of spreads did not contain partially hydrogenated vegetable oils (PHVO) in 2013. From 2002 to 2013, based on a 14 g serving, total fat and trans-fatty acid content of spreads decreased on average by 2.2 g and 1.5 g, respectively. In the same period, the overall fat composition improved as reflected by a decrease of solid fat (from 39% to 30% of total-fatty acids), and an increase of unsaturated fat (from 61% to 70% of total-fatty acids). The majority of US spreads no longer contains PHVO and can contribute to meeting dietary recommendations by providing unsaturated fat.


Assuntos
Condimentos/análise , Gorduras na Dieta/análise , Ácidos Graxos/análise , Margarina/análise , Óleos de Plantas/química , Adulto , Condimentos/economia , Inquéritos sobre Dietas , Gorduras na Dieta/economia , Ácidos Graxos Insaturados/análise , Manipulação de Alimentos , Rotulagem de Alimentos , Humanos , Hidrogenação , Ácido Linoleico/análise , Masculino , Margarina/economia , Valor Nutritivo , Óleos de Plantas/economia , Estereoisomerismo , Ácidos Graxos trans/análise , Estados Unidos , Ácido alfa-Linolênico/análise
5.
Am J Clin Nutr ; 94(5): 1171-81, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21993434

RESUMO

BACKGROUND: Extracts from Hoodia gordonii have been shown to decrease food intakes and body weights in animals and were proposed as a food supplement or ingredient for weight management. OBJECTIVE: We assessed the safety and efficacy of a 15-d repeated consumption of H. gordonii purified extract (HgPE) relative to a placebo in humans. DESIGN: Healthy, overweight women, who were stratified by percentage body fat, received either HgPE (n = 25) or a placebo (n = 24) for 15 d. Subjects were resident in a clinic for a 4-d run-in period and a 15-d treatment period in which they received 2 servings/d of 1110 mg HgPE or a placebo formulated in a yogurt drink 1 h before breakfast and dinner. Subjects were otherwise allowed to eat ad libitum from standardized menus. RESULTS: There were no serious adverse events, but HgPE was less well tolerated than was the placebo because of episodes of nausea, emesis, and disturbances of skin sensation. Blood pressure, pulse, heart rate, bilirubin, and alkaline phosphatase showed significant (P < 0.05) increases in the HgPE group. Mean effects on ad libitum energy intakes and body weights did not differ significantly between the HgPE- and placebo-treatment groups (P > 0.05). CONCLUSIONS: In comparison with a matched placebo, the consumption of HgPE for 15 d appeared to be associated with significant adverse changes in some vital signs and laboratory parameters. HgPE was less well tolerated than was the placebo and did not show any significant effects on energy intakes or body weights relative to the placebo. This trial was registered at clinicaltrials.gov as NCT01306422.


Assuntos
Apocynaceae/química , Ingestão de Alimentos/efeitos dos fármacos , Sobrepeso/tratamento farmacológico , Fitoterapia/métodos , Extratos Vegetais/administração & dosagem , Adolescente , Adulto , Fosfatase Alcalina/sangue , Bilirrubina/sangue , Pressão Sanguínea/efeitos dos fármacos , Peso Corporal/efeitos dos fármacos , Método Duplo-Cego , Esquema de Medicação , Feminino , Frequência Cardíaca/efeitos dos fármacos , Humanos , Pessoa de Meia-Idade , Sobrepeso/metabolismo , Sobrepeso/fisiopatologia , Fitoterapia/efeitos adversos , Extratos Vegetais/efeitos adversos , Extratos Vegetais/farmacocinética , Adulto Jovem
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