Occasionally. I'll work my way through a can and then forget about it for 6 months. I'm a non-responder...no performance boost for me but i think it has other health benefits.
LOOOONG thread here somewhere on that and loads over at CF.
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"Survival will be neither to the strongest of the species, nor to the most intelligent, but to those most adaptable to change."
C. Darwin
Robb's Blog
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