Chris Kresser: Which protein you choose depends on a number of different factors, your goals, the patient tolerance, expense, etc. I think whey and collagen are the best bet for most people, particularly with the patients trying to build muscle and has certain anabolic goals, but too much whey is just like having too much lean protein. If you’re not following that up with enough collagen, that could potentially increase the risk of cancer, but it can also make joint pain and other things like that worse. I like a balance of whey and collagen if the patient’s going to whey at all. Paleo Protein from Designs for Health or PurePaleo. It’s basically a collagen protein, and you’ve got a lot of other from beef, and then you’ve got a bunch of others like that vital proteins. Mark Sisson’s company has some good collagen and protein products. I would say if people are eating primarily lean meat in their diet, eggs, and things like that that they should probably just use collagen as a supplemental protein powder, so that they make sure that they’re getting plenty of collagen and OD’ing methionine. If they don’t tolerate whey and they don’t tolerate collagen for any reason, or if they’re vegetarian or a vegan, then pea protein would probably be the best next step down, but it can cause symptoms, and I don’t know about whether it does that because it’s a FODMAP. The FODMAP is the carbohydrate portion of a food, and in an isolated protein, there really shouldn’t be any FODMAP in there. It could be the legume factor if someone has sensitivity to legumes or lectins, although I would think the protein powder would be lectin-free. I’m not sure about that, but certainly if somebody takes a protein powder and they have diarrhea, that’s obviously not a good sign, and you got to find something else that will work better.