Association between dairy protein and body composition in middle-aged and older women: A community-based, 12-year, prospective cohort study. Issue 2 (February 2022)

• Record Type: Journal Article
• Authors: Lee, Jun-Hyuk; Cho, A-Ra; Kwon, Yu-Jin
• Is Part Of: Clinical nutrition. Volume 41:Issue 2(2022)
• Page Start: 460
• Page End: 467
• Publication Date: 2022-02
• Subjects: LMAO low muscle mass with abdominal obesity -- AO abdominal obesity -- LM low muscle mass -- BMI body mass index -- WHtR waist-to-height ratio -- SO sarcopenic obesity -- KoGES Korean Genome and Epidemiology Study -- FFQ food frequency questionnaire; Dairy protein -- Body composition -- Low muscle mass -- Abdominal obesity -- Women; Critically ill -- Nutrition -- Periodicals; Diet therapy -- Periodicals; Parenteral feeding -- Periodicals; Enteral feeding -- Periodicals; Enteral Nutrition -- Periodicals; Parenteral Nutrition -- Periodicals; Metabolism -- Periodicals; Diétothérapie -- Périodiques; Alimentation parentérale -- Périodiques; Alimentation entérale -- Périodiques; Nutrition -- Périodiques; Diet therapy; Enteral feeding; Nutrition; Parenteral feeding; Electronic journals; Periodicals; Electronic journals; 615.854
• DOI: 10.1016/j.clnu.2021.12.015
• Languages: English
• ISSNs: 0261-5614

Abstract

Summary: Background & aims: Changes in body composition during aging include decreased muscle mass and increased fat mass. Women with low muscle mass with abdominal obesity (LMAO), in particular, could be at higher risk of morbidities and mortality than those with either sarcopenia or obesity alone. Dairy products, which contain whey protein and all essential amino acids, could have a beneficial role in preserving muscle mass and reducing obesity. We aimed to analyze the association between dairy protein and the development of LMAO in women using a large-scale, community-based prospective cohort. Methods: Our analysis included 4251 women from the Korean Genome and Epidemiology Study. Participants were categorized into three groups by the tertile of dairy protein intake, which was assessed using a semi-quantitative 103-food item food frequency questionnaire. Appendicular skeletal muscle mass was estimated using the anthropometric equation. Low muscle mass (LM) was defined as a muscle mass of less than 15 kg in women. Abdominal obesity (AO) was defined as a weight to height ratio of 0.58 or greater. LMAO was defined as LM in combination with AO. Multiple Cox hazard regression analysis was conducted to examine associations between dairy protein intake and incident LMAO. Results: During follow-up (mean, 9.6 years), 280 women newly developed LMAO. According to Cox proportional regression models, the hazard ratios (95% confidence interval) for incident LMAO in the middle and highest tertiles were 0.89 (0.74–1.06) and 0.71 (0.59–0.86), compared with lowest tertile, after adjusting for confounding variables. Conclusions: These findings indicate that high dairy protein intake is inversely related with LMAO development in Korean women. Dairy protein intake could be effective in preventing incident LMAO.