Dr Margaret Ashwell has studied using a Waist to Height ratio for years. She has access to population wide NHS medical records, and has argued that health outcomes based on waist:height are more valid for example, the thin Southeast Asian populations in the UK who can become diabetic while still in a "healthy BMI range". Dr Naiman uses it for the same reason.

BMI works for me, and the clinical studies I am most interested in use BMI, but fully accept that a doctor should adjust for racial disparities in body shape.

Dr Ashwell is now retired but her studies were published in Lancet and she consults at. http://www.ashwell.uk.com/


Duke Health is so enamored with BMI they have exam chairs/table where your weight is automatically taken (no cheats with a nurse entry) and BMI then calculated and added to your electronic medical record down to the hundreds.

My last visit to a Duke facility my BMI was 22.81 kg/m2. :Rolleyes: That .81 was surely critical
But studies on health and longevity do use BMI and breast cancer in post- menopausal women starts to rise at 22.

https://optimisingnutrition.com/opt...alth-longevity/