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Old 07-27-2003, 09:11 AM   #4 (permalink)
HeyAgain
Psycho
 
Hey degarg,

Since you found the link on bodybuilding.com, check out their forum

http://forum.bodybuilding.com and use the search function.

I have been able to get a lot of information from the forum.

Answer to your question: \/

Are all protein supplements the same?

No. Protein supplements can be made from a few different source of protein. These include milk protein, egg protein, soy protein. In addition, not all protein is absorbed in the same way in the body. The better a protein is absorbed by the body the higher the Biological Value (BV) the protein is said to have.

What is the BV rating I see associated with protein?

This measures the amount of protein ( or more precisely - the nitrogen) retained in the human body per gram of protein absorbed. This measure started out as a percentage - with a whole egg being at the top of the chart - 100% nitrogen absorbed. However, things got a little more confusing when Whey Protein was discovered. The problem is whey is a better source of protein than an egg - so it actually scores higher than 100. This means the percentage must be dropped - because greater than 100% does not make much sense. So, today BV is a number which lets you compare different types of protein. Currently 159 is the highest possible BV. Here is the BV of some common foods:

Protein BV
Whey isolate 110-159
Whey concentrate 104
Whole egg 100
Cow's milk 91
Egg white 88
Fish 83
Beef 80
Chicken 79
Casein 77
Soy 74
Rice 59
Wheat 54
Beans 49
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