Pea vs Whey Protein Powder: Which is Better for You? I've been a whey guy for years. When I started using protein powder, there weren't that many options. Now there are loads. And many powders made from plant proteins have really good macronutrient and essential amino acid profiles. Pea protein powder, made from yellow peas (specifically, yellow split peas), is one of them. David Robinson, PhD UK Fitness ProApr 13 · 10 min read