Am I right in thinking that most powders are complete proteins? Animal protein are complete whereas most vegetarian proteins are incomplete (except for soya).
So protein powders are a decent way for vegetarians to get all amino acids needed that are not available from most vegetarian protein sources?
Yes, most protein powders are made from whey or casein, which are both made from milk, which is an animal source.
It is much harder for vegans, who would have to look for a soy or hemp based powder (usually much more expensive).
To answer the original question, yeah 0.5g per pound of bodyweight per day should be fine if you're not really looking to build muscle. And if you are looking to build muscle, there isn't really need to go more than 1g per pound.
