Medically reviewed by Suzanne Fisher, RD Key Takeaways Body mass index (BMI) is a calculation used to estimate your body fat.
When it comes to measuring weight, BMI is the acronym everyone loves to hate. Health professionals have long used body mass index as a quick screening tool to fast-track certain patients into a “code ...
Both lean and fat mass indices affect BMD and osteoporosis risk, with the specific clinical relationships varying by biological sex.