I'm currently using Yeti. But I don't feel like I get any benefit from it. I used to have a cup of black coffee in the morning for a long time. Check out a company called 1stPhorm, their AlphaHD is good, and their protein is way above anything else I've ever had. Once I finish off my Mtn Ops stuff, I'll be going back to them, I never should have switched.
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