Question by DBunny: Why the “no exercise” rule on the morning of a cholesterol test?
Does anyone know exactly why they say you should not exercise up to12 hours prior to a fasting cholesterol/triglycerides blood test? Does a workout falsely lower or raise the results? What if it’s just light cardio?

Best answer:

Answer by MonMon
Your body creates it’s own cholesterol..with out eatting..physical exertion makes it kick in……and will give a false positive on test.

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