What is the lowest BMI ever recorded?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The lowest BMI ever recorded in a surviving individual was approximately 7-8, seen in extreme cases of anorexia nervosa. However, a BMI this low is incompatible with normal life and represents severe medical emergency requiring immediate intervention. For context, a healthy BMI is 18.5-24.9, underweight is below 18.5, and severe thinness is below 16. A BMI below 12-13 is generally considered life-threatening.
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