Is the protein in beef different from the protein in milk?

Beef is muscle, and his main proteins,are myoglobin, which is an oxygen carrier, and actin and myosin, which are the molecular motor that performs muscle contraction. Milk, on the other side, is the food secreted by female mammals for the nourishment of their young and its protein are different both in functionality and composition. read more

The basic goal was to compare the impact of two different sources of protein as a postworkout meal: milk and beef. To do that, researchers from Luc van Loon’s group at Maastricht University injected a cow with amino acids specially labeled with a rare isotope of carbon. read more