Wellness Glossary
BMI (Body Mass Index)
A simple, friendly explanation of what this term means — without the medical jargon.
What it means
BMI is a simple calculation that compares your weight to your height. It gives a general idea of whether your body size falls in a range that is considered underweight, normal weight, overweight, or obese. It does not measure health directly, but it can be one clue about your overall risk for certain conditions.
Why it matters
Higher BMI levels are linked with a greater risk for type 2 diabetes, high blood pressure, heart disease, and several types of cancer. When BMI rises above the normal range, it can signal that the body is carrying more fat than is healthy, especially around the midsection. For a clearer picture of what this means, see the glossary entry on Body Fat.
BMI is not perfect. It does not distinguish between muscle and fat, and it does not account for body shape or fitness level. But for most adults, it is a useful starting point for understanding health risks.
What it means for you
BMI is one piece of the puzzle. Your habits, your lab work, your energy, your sleep, and how you feel day to day all matter just as much. Supportive lifestyle patterns can help bring BMI into a healthier range and improve your overall metabolic health.
Helpful habits include:
• eating more fruits, vegetables, beans, and whole grains
• moving your body regularly
• getting consistent sleep
• lowering stress
• limiting foods high in saturated fat and added sugar
These choices support a healthier weight and better long‑term health.
Try this
One small action step
Add one extra serving of a fiber rich plant today. Fiber helps you feel satisfied, supports steadier blood glucose, and naturally guides your weight in a healthier direction.
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