Evaluation of the relationship between dietary acid load and resting energy expenditure in women: a pilot study

Abstract

PurposeThis study aims to evaluate the effect of dietary acid load on anthropometric measurements and resting energy expenditure (REE).Design/methodology/approachA total of 57 women aged 18-45, with a normal body mass index and without any acute or chronic disease, were included in the study. The general characteristics of the participants were evaluated with the questionnaire, REE and body composition were measured. A three-day food consumption record was taken; potential renal acid load and net endogenous acid production were calculated.FindingsThere were no statistically significant differences in anthropometric measurements, mean oxygen consumption per minute or REE between the high and low dietary acid load groups. According to categorical regression analysis, sedentary activity level and >= 26% body fat percentage negatively affect REE.Practical implicationsAlthough no direct association was found between dietary acid load and REE, the findings suggest that higher body fat percentage and a sedentary lifestyle are significant negative predictors of REE. These results underscore the importance of promoting regular physical activity and maintaining a healthy body composition for metabolic health. Additionally, while dietary acid load may not have an immediate measurable impact on REE, its potential long-term effects on body composition warrant attention. Encouraging balanced diets rich in plant-based, healthy foods may contribute to better overall health outcomes and support metabolic efficiency in the long term.Originality/valueTo the best of the authors' knowledge, this is the first study to evaluate the effect of dietary acid load on REE in a Turkish sample.