Why do you have to give up caffeine when you start body building or toning up and weight loss?

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Question by Brenda G: Why do you have to give up caffeine when you start body building or toning up and weight loss?
When I start new programs for body toning and weight loss, they usually provide a diet. These diets always tell you to stop caffeine completely. Why? I went to curves, dropped 2 sizes, but my fat index remained the same. They asked if drank caffeine. Yes!


Best answer:
Answer by Mike GCaffeine hardens

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