A member asked:

Am overweight have been crash dieting feeling dizzy and faint. does any deficiency show up in blood right away?

A doctor has provided 1 answer
Dr. Quang Nguyen answered

Specializes in Endocrinology

Yes: Kidney insufficiency, electrolytes problem: low sodium, potassium, magnesium...Go see your doctor for a blood test. Stop crash dieting.

Answered 10/26/2012

5.6k views

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