There are several types of protein: Whey, Soy, Egg, and Casein. So which kind is best? Well that depends on how and when you want to use them.
Whey - Basically, whey protein is amazing for post-workout supplementation because that's the time your body needs protein the most, and whey is digested very quickly (about 30 minutes)
Casein - Casein is digested very slowly (over 2 - 7 hours). This means it's great to use a protein supplement with casein before bed because the longest time your body goes without protein is during the night while you are sleeping.
Egg - Egg protein (albumen) digests at a medium pace (1.5-3 hours) so it's a good anytime protein to provide a good sustained release of aminos to the body.
Soy - Soy protein is the vegetarian's friend because it's one of the only complete protein sources derived from plants. Soy is a good overall protein, although it's not as effective in terms of absorption as whey or egg albumen. Additionally, soy has many recognized health benefits for women.
Blends - Either protein supplements are straight whey, soy, egg, or casein; or they are a combination of any or all of these kinds of proteins. What can a blend of proteins offer that a straight protein cannot? Basically, different rates of digestion. This means you can take a blended protein any time to get quick, medium, and prolonged absorption of protein.
Low Carb - Of the many protein supplements, the two other main categories are weight gainers and low carb protein shakes and bars. These two are on opposite spectrum of each other. Yep, you guessed it low carb protein shakes are good for those dieting or trying to lose or maintain weight.
Weight Gainer - Weight gainers are high calorie protein products that are great for people who are looking to bulk up. If you are having trouble gaining weight, taking in extra high quality calories will usually do the trick.
