Glen Tobias talks about whether or not you should be taking whey protein.
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What you need to know about whey protein is, first of all, Little Miss Muffet had it right. She sat down and she ate her curds and whey, so she was eating cottage cheese. The water that people pour off of the cottage cheese is the whey. That is a tremendous protein source, and I don't recommend you ever pour that off. In terms of biological value, that's how you rank a protein. So the higher it is, the better it is for your body, the less of it you would need to get more out of it. Biological value of whey is about 104; the old gold standard was 100, and that was a keg and other things fall below that. So whey is ideal for a pre-workout because it's going to get into the body quickly and that's what you want, and you don't want it to be sitting in your stomach for too long, so you want to keep it very, very low fat as well. Post-workout, whey is ideal. Again, very, very, very low fat or no fat with that. Maybe a banana and a scoop of whey protein would be terrific after a workout. Because of the carbohydrate, you want to replete the glycogen that you just used, and you also want to repair the muscles that you just damaged and the whey protein's going to get in there pretty quickly to do so. So whey is awesome for pre and post. I do think there are other things that are better for before better, like a casein or maybe even an egg, which are slow and digesting proteins so it stays in the system longer. And if you're going to before bed casein or the egg, you want to have a higher fat with that because the more fat you have with your meal, the more time it stays in the stomach, and you want to keep it in the stomach as long as possible at night, but yet before your workout and after your workout you want it out of the stomach quickly, and that's why whey is so good because it's just got a high biological value and it's just tremendous for the pre and post.