Efficacy of Nutritional Supplementation on Physical-activity Mediated Changes in Physical Functioning Older Adults at Risk for Mobility Disability (The VIVE2 Study)

Participants will complete exercise sessions 3 times per week for 6 months. The exercise sessions will involve walking, lower extremity strength exercises, flexibility, and balance training.

Participants will be randomly assigned to receive either the nutritional supplement or placebo. The participants will consume on beverage immediately after each exercise session.