Question: is a bmi of 19 good?
Answer: A BMI of less than 18.5 kg/m2 indicates you are underweight. You may need to gain weight. If your BMI is 19 to 24.9 kg/m2, you're are a healthy weight, and should aim to stay that way. A BMI of 25 to 29 kg/m2 is defined as overweight.