what should BMI be
Any BMI between 18.5 and 24.9 is considered normal. A BMI under 18.5 is categorized as underweight. You are considered overweight if your BMI is between 25 and 29.9. If your BMI is 30 to 39.9, you are obese. Any BMI over 40 is classified as morbidly obese. These categories are for adults over 20 years of age.