With literally dozens of protein sources available, there are but a few that are actually good for you. Being “good” for you is highly objective, but if you break down each aspect of it you’ll see that some protein sources are not at all good for you, or partially good for you. The important aspect is to find the protein source where you know you will have the biggest benefit and the most flexibility. Flexibility is key in this regard, because when you break it down, your body needs protein on a consistent basis. With this, you need to be sure that you have the right qualities in your protein source.
As far as protein is concerned, you have the options of whey protein isolate, meats, eggs, egg white powder, casein, and soy. These are just a few of the protein sources available, but which one is better, you ask. For the amount of protein you get, versus calories and fat and cholesterol, whey protein isolate is the way to go. With no fat and cholesterol, your body will not receive the calories associated with it. It’s also quick absorbed into the body.
With meat, especially with red meat, cholesterol and fat is rampant and approximately 1/3 of those calories consist of the fat and cholesterol. Your body will take longer to process the meat because its absorption rate is low. You could get the full effects of protein 3-5 hours after you’ve eaten.
This is the same effect with casein. Casein is found in milk and milk products, but the issue is that it processes very slowly in the system as your body is working overtime to help break down everything that’s in casein. Think of this: casein is found in paint (the reason the paint is thick). Apply that concept to painting and you understand why casein isn’t the best source of protein for you.
Whey protein isolate is the best choice and it’s diverse, too, so you can make it into any number of drinks or shakes.