Effect of a plant protein-rich diet on postprandial phosphate metabolism in healthy adult men: a randomised controlled trial

IF 2.9 3区医学 Q3 NUTRITION & DIETETICS Journal of Human Nutrition and Dietetics Pub Date : 2024-03-27 DOI:10.1111/jhn.13299

Kozue Uenishi, Nozomi Kawasaki, Haruka Iseki, Misato Nogata, Yuki Kawabata, Shinsuke Kido

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Abstract

Background

This study examined the effects of animal protein- and plant protein-rich diets on postprandial phosphorus metabolism in healthy male subjects.

Methods

The study was conducted by randomised parallel-group comparison of healthy men aged 21–24 years. In Study 1, participants were divided into two groups and consumed either a 70% animal protein diet (AD, n = 6) or a 70% plant protein diet (PD, n = 6). In Study 2, participants were divided into three groups and consumed either AD (n = 10), PD (n = 10) or AD + DF, a 70% animal protein diet loaded with the same amount of fibre as PD (n = 9). The phosphorus contents of the diets used in this study were nearly equivalent (AD, 710.1 mg; PD, 709.7 mg; AD + DF, 708.9 mg). Blood and urine samples were collected before, and 2 and 4 h after the meal to measure phosphorus and calcium levels.

Results

In Study 1, PD consumption resulted in lower blood and urinary phosphorus concentrations 2 h postprandially compared with AD (p < 0.05). In Study 2, blood phosphorus levels in AD + DF after the diet remained lower, but not significantly so compared with AD, and urinary phosphorus levels were significantly lower 2 h postprandially (p < 0.05).

Conclusions

A plant protein-rich diet reduced rapid postprandial increases in blood and urinary phosphorus concentrations compared with the animal protein-rich diets, suggesting that dietary fibre may play a partial role in the postprandial decreases in blood and urinary phosphorus concentrations.

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富含植物蛋白的饮食对健康成年男性餐后磷酸盐代谢的影响：随机对照试验。

背景：本研究考察了富含动物蛋白和植物蛋白饮食对健康男性受试者餐后磷代谢的影响：本研究探讨了富含动物蛋白和植物蛋白的饮食对健康男性受试者餐后磷代谢的影响：研究采用随机平行分组比较法，对象为 21-24 岁的健康男性。在研究 1 中，参与者被分为两组，分别摄入 70% 的动物蛋白饮食（AD，n = 6）或 70% 的植物蛋白饮食（PD，n = 6）。在研究 2 中，参与者被分为三组，分别摄入 AD（10 人）、PD（10 人）或 AD + DF（70% 动物蛋白饮食，纤维含量与 PD 相同）（9 人）。本研究中使用的日粮磷含量几乎相同（AD，710.1 毫克；PD，709.7 毫克；AD + DF，708.9 毫克）。研究人员在餐前、餐后 2 小时和 4 小时采集血液和尿液样本，以测量磷和钙的含量：结果：在研究 1 中，与 AD 相比，进食 PD 可降低餐后 2 小时血液和尿液中的磷浓度（p 结论：进食 PD 可降低餐后 2 小时血液和尿液中的磷浓度：与富含动物蛋白的膳食相比，富含植物蛋白的膳食降低了餐后血液和尿液中磷浓度的快速升高，这表明膳食纤维可能在餐后血液和尿液中磷浓度的降低中发挥了部分作用。

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来源期刊

Journal of Human Nutrition and Dietetics 医学-营养学

CiteScore

5.30

自引率

15.20%

发文量

133

审稿时长

6-12 weeks

期刊介绍： Journal of Human Nutrition and Dietetics is an international peer-reviewed journal publishing papers in applied nutrition and dietetics. Papers are therefore welcomed on: - Clinical nutrition and the practice of therapeutic dietetics - Clinical and professional guidelines - Public health nutrition and nutritional epidemiology - Dietary surveys and dietary assessment methodology - Health promotion and intervention studies and their effectiveness - Obesity, weight control and body composition - Research on psychological determinants of healthy and unhealthy eating behaviour. Focus can for example be on attitudes, brain correlates of food reward processing, social influences, impulsivity, cognitive control, cognitive processes, dieting, psychological treatments. - Appetite, Food intake and nutritional status - Nutrigenomics and molecular nutrition - The journal does not publish animal research The journal is published in an online-only format. No printed issue of this title will be produced but authors will still be able to order offprints of their own articles.