Originally Posted by 
OakLeaf
				 
			There's "need" and there's "need." I know that a person can survive and be healthy on less than 1 g protein per kg bodyweight per day. But if I'm not getting at least 1.75 g of quality protein per kg, I'm sore and tired all the time and I can't build muscle. That's not something I read or a conclusion that I reached when I was thinking about protein; it's something I discovered accidentally one day when I ate a tuna sandwich at lunch and miraculously wasn't sore for the rest of that day and the next day. Any time I did that, the soreness stayed away and I got stronger.