There was a proper scientist type chap on R4 talking about them last week and his research* had shown that the vast majority of people get more than enough protein in their daily diet….even those doing a lot of exercise. Taking more than you need just makes you fat (I didn’t follow why).
He succinctly and calmly debunked the authentic frontier gibberish being claimed by some woman who was flogging “female specific protein drinks”.
Doesn’t it help your immune system?
I have no idea, but I think the point is most of us get more than enough of everything we need from food.
* I can’t speak for the veracity of his findings but he had a proper sciency sounding job ..not a “nutritionist”