I just placed an order for the Opt-men as a new vita pak to try. Previously, I have been on GNC Extreme Athlete vita pak for many months and do enjoy it. However, I want to try something new and many reviews say the Optimen are better then the GNC sport/athlete line of vita paks. I also have a short stint with Animal Pak, but stopped taking them after 2 days because of some negative side effects. I may come back to them again later as I have almost a full container left, but not now. Have any of you experience with Opti-men, especially if you are fairly active. I want to know how these will help me with Cross fit and general lifting or running. Thanks for your feedback.

Bumping my thread to give it another chance.