Effect of Dietary Pulses on Acute Postprandial Glycemia and Food Intake Regulation: A Systematic Review and Meta-analyses
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 1
- 试验地点
- 1
- 主要终点
- Effect of pulse consumption on post-prandial glycemia in acute, single bolus controlled feeding trials.
研究概览
简要总结
Dietary pulses (beans, peas, chickpeas, and lentils), more commonly known as "legumes", are generally recognized as healthy components of the diet. Canada's Food Guide encourages consumptions of meat alternatives, such as beans "more often"; and the dietary guidelines for Americans both recommend consumption of 3 cups of legumes per week. However, there remains insufficient information on the usefulness of these foods in protecting heart health. To improve evidence-based guidance for dietary pulse recommendations, the investigators propose to conduct a systematic review of the effect of dietary pulse consumption on after-meal blood sugar levels, appetite, and food intake regulation to help explain their mechanism for improving longterm blood sugar and body weight control. The systematic review process allows the combining of the results from many small studies in order to arrive at a pooled estimate, similar to a weighted average, of the true effect. The investigators will be able to explore whether eating pulses has different effects between men and women, in different age groups and background disease states, and whether or not the effect of pulses depends on the dose and background diet. The findings of this proposed knowledge synthesis will help improve the health of Canadians through informing recommendations for the general public, as well as those at risk of heart disease and diabetes.
详细描述
Background: Pulses, including dry peas, beans, lentils and chickpeas, are a rich source of a number of healthy dietary components including dietary fiber, low glycemic index carbohydrate, vegetable protein and polyphenolics. To support health claims and evidence-based dietary guidelines, it is important to establish whether the glycemic control and weight loss benefits observed with dietary pulses are attributable to their proposed mechanism-of-action, whereby they reduce acute postprandial excursions in glycemia and contribute to satiety and decreased intake at subsequent meals.
Objectives: The objective of this project is to conduct two systematic reviews and meta-analyses of the effect of dietary pulse consumption on acute postprandial metabolic endpoints: (1) postprandial glycemia and (2) food intake regulation.
Design: The planning and conduct of the proposed meta-analyses will follow the Cochrane handbook for systematic reviews of interventions. The reporting will follow the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines.
Data sources: MEDLINE, EMBASE, CINAHL and The Cochrane Central Register of Controlled Trials will be searched using appropriate search terms.
Study selection: Acute, single bolus controlled feeding trials that investigate the effect of isocaloric exchange of dietary pulses for other carbohydrate foods on cardiometabolic risk outcomes in humans will be included. Studies that have a chronic feeding design, lack a control, or report comparisons not matched for available carbohydrate will be excluded.
研究设计
- 研究类型
- Observational
- 时间视角
- Prospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •dietary trials in humans
- •acute, single bolus feeding
- •control matched for available carbohydrate
- •viable endpoint data
排除标准
- •non-human studies
- •chronic feeding
- •lack of a suitable control (not matched for available carbohydrate)
- •no viable endpoint data
结局指标
主要结局
Effect of pulse consumption on post-prandial glycemia in acute, single bolus controlled feeding trials.
时间窗: Up to 1.5-years
Area under the curve \[AUC\], glycemic index (GI)
Effect of pulse consumption on satiety in acute, single bolus controlled feeding trials.
时间窗: Up to 1.5-years
Subjective appetite scores, 2nd meal intake
次要结局
未报告次要终点
研究者
John Sievenpiper
Adjunct Research Fellow
University of Toronto