A member asked:

What are some 7 day crash diet negative side effects? i have a headache and this is my 2nd day on dr. furhmans diet

A doctor has provided 1 answer

They don't work: They don't call them "crash" for nothing. Your metabolism will crash as you drastically & abruptly alter your nutritional status, sometimes with the addition of drugs. I am unfamiliar with the specific diet you name, but any diet which involves depletion of nutrients (not just "empty" calories) will cause adverse effects--consider prisoner-of-war health issues arising from extreme "diets".

Answered 10/13/2012

5.6k views

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