PROTEIN METABOLISM

This study aims to validate a new, non-invasive breath test as a simpler way to measure how dietary protein helps build muscle. Researchers will compare results from this breath test against the current gold-standard method, which requires muscle biopsies. The goal is to make fut…

This study aims to understand how women's menstrual cycles and birth control pills affect how their bodies build muscle proteins after weight training. Researchers will measure protein building in muscle and throughout the body in 20 active women during different cycle phases. Th…

This study aims to understand whether beef or plant-based soy protein is better for building and maintaining muscle in older adults who may be experiencing frailty. Researchers will compare how 60 participants aged 65-95 process these different protein sources using a new measure…

This study aims to better understand how the bodies of adults with obesity process protein and sugar. Eight participants will drink special, non-radioactive 'labeled' beverages on two separate visits. Researchers will collect blood, breath, urine, and small muscle samples to trac…

This study aims to understand how different types of protein—from plants (soy, pea) and dairy (whey)—affect the body's ability to build and maintain muscle in older adults, particularly those with age-related muscle loss (sarcopenia). Researchers will give 100 participants liquid…

This study aims to understand how aging affects the body's ability to process protein, which is linked to muscle loss. Researchers will measure metabolism in 50 healthy adults aged 60-80 after they drink different nutritional supplements. The goal is to identify specific metaboli…