- Jun 27, 2004
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what is the best protein you bros have ever used? im taking some ON's pro complex right now. it has over 13 grams of bcaa's, lactase and other digestive enzymes, more than 8 grams of glutamine, glutamine peptides, & glutamine precursors, and also 55g of protein per serving . and it also taste good was just wondering what you guys used as a protein source.