Whey protein, pea protein, casein...what are the differences between these proteins?
Whey protein, also known as the king of protein, is an important component of breast milk, accounting for 60% of breast milk protein. Whey protein is also the most expensive protein on the market. This is because whey protein is extracted from milk, but only 20% of milk protein is whey protein, which is not as high as that in breast milk.
