Protein Sources: Animal vs. Plant - Are They Truly Equal?

New research from Purdue University suggests that animal-based protein foods provide greater bioavailability of essential amino acids (EAA) compared to plant-based protein foods. The study challenges the notion that animal and plant proteins are nutritionally equivalent, as stated in the Dietary Guidelines for Americans. The findings indicate that animal-based proteins, such as lean pork and eggs, are more effective in providing EAAs for muscle and whole-body protein building. The study highlights the importance of considering protein quality and nutrient content when making dietary recommendations, especially for vulnerable populations like older adults. Further research is needed to understand the impact of different protein sources on muscle and whole-body health.