Exploring the Effects of Greek Yogurt Supplementation and Exercise Training on Serum Lithium and Its Relationship With Musculoskeletal Outcomes in Men

Frontiers in Nutrition

卷:8

Val A. Fajardo²  Ryan W. Baranowski²  Lauren E. Skelly³  Andrea R. Josse³ 

[1] Centre for Bone and Muscle Health, Brock University, St. Catharines, ON, Canada;

[2] Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON, Canada;

[3] School of Kinesiology and Health Science, Faculty of Health, York University, Toronto, ON, Canada;

关键词: body composition;    strength;    bone turnover;    dairy;    resistance training;    P1NP;   

DOI  :  10.3389/fnut.2021.798036

来源: DOAJ

【 摘 要 】

Dairy products can act as a dietary source of lithium (Li), and a recent study in university-aged males demonstrated that Greek yogurt (GY) supplementation augmented gains in fat free mass, strength and bone formation after 12 weeks of resistance exercise training compared to carbohydrate (CHO) pudding supplementation. Here, we performed secondary analyses to explore whether GY would alter serum Li levels and whether changes in serum Li would associate with changes in body composition, strength, and bone turnover markers. Results show that the GY group maintained serum Li levels after exercise training, whereas the CHO group did not. Maintaining/elevating serum Li levels was also associated with greater gains in strength and reductions in bone resorption. However, controlling for other dietary factors in GY such as protein and calcium weakened these associations. Thus, future studies should assess the causative role, if any, of dietary Li alone on strength and bone resorption in humans.

【 授权许可】

Unknown