Experts say protein coffee can help adults over age 40 support muscle maintenance, though it works best as part of a balanced eating pattern overall.
https://www.foxnews.com/food-drink/protein-coffee-exploding-popularity-among-adults-worried-about-muscle-loss
https://www.foxnews.com/food-drink/protein-coffee-exploding-popularity-among-adults-worried-about-muscle-loss