As personal trainer Mike Duffy puts it, “Many trainers do not have any nutritional training yet give out nutritional advice as though they’re an expert.” So unless he can prove he’s qualified (think: credentials), be wary of a trainer who is pushing you hard on tons of energy drinks, supplements, or shakes. A good trainer won’t step up as a nutrition authority unless he actually is—he’ll simply encourage you to find what works for you or share his personal experiences, saying things like, “This is what does it for me.”
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