According to health experts, a healthy BMI for men is between 18.5 and 24.9. BMI, or Body Mass Index, is a measure that uses a persons height and weight to determine if their weight is healthy. A BMI below 18.5 is considered underweight, while a BMI between 25 and 29.9 is considered overweight, and a BMI of 30 or over is considered obese. It is important to note that BMI is not a perfect measure of health, as it does not take into account factors such as muscle mass or body fat percentage. However, maintaining a healthy BMI range is one way to support overall health as you age. To calculate your BMI, you can use an online calculator or the formula: BMI = weight (kg) / height (m)^2.