What Your Body Weight Says About Your Health
The Body Mass Index (BMI) is one of the most well-known metrics for assessing body weight in relation to height. It is used worldwide in medical practice to quickly determine whether someone is of normal weight, underweight, or overweight.
Especially for men, BMI can be an initial indicator of an increased risk for cardiovascular disease, testosterone deficiency, or metabolic disorders. Even if it doesn't represent all aspects of body composition, BMI offers easily accessible guidance – ideal for health-conscious individuals who want to check their status.
What is the Body Mass Index?
BMI is calculated from the ratio of body weight to the square of body height. The formula is:
BMI = Body Weight (kg) / (Body Height in m)²
For example, a man who weighs 85 kilograms and is 1.80 meters tall has a BMI of 26.2 – which, according to the WHO, is considered "slightly overweight."
Calculate your BMI now: BMI Calculator
What BMI values are considered normal?
The World Health Organization (WHO) has defined the following BMI classifications:
- Underweight: Below 18.5
- Normal weight: 18.5 to 24.9
- Overweight (Pre-obesity): 25 to 29.9
- Obesity Class I: 30 to 34.9
- Obesity Class II: 35 to 39.9
- Obesity Class III: 40 and above
What is the significance of BMI for men?
BMI roughly indicates how much body mass a person has in relation to their height. For men, it is particularly helpful when it comes to preventing chronic diseases.
But BMI also has weaknesses: It does not distinguish between fat and muscle mass. A muscular man can therefore be falsely classified as overweight. For this reason, additional parameters should be considered.
Important supplementary measurements:
- Waist circumference (ideally under 94 cm for men)
- Waist-to-Hip Ratio
- Body fat percentage (via bioimpedance or caliper measurement)
- Visceral fat (fat in the abdominal cavity, particularly hormonally active)
Specifically, belly fat is critical because it promotes inflammation and can negatively impact testosterone levels.
What health risks are associated with an elevated BMI?
A persistently elevated BMI (25 and above) can promote the development of the following diseases:
- High blood pressure
- Type 2 diabetes
- Lipid metabolism disorders
- Atherosclerosis
- Testosterone deficiency
- Sleep apnea
- Joint problems
A BMI over 30 significantly increases the risk of erectile dysfunction, often as a result of narrowed blood vessels, hormonal changes, or chronic inflammation.
What should men consider regarding BMI?
BMI is a good guide, but it should not be considered in isolation. Especially in athletic men, a high BMI can be accompanied by a low body fat percentage.
The combination of these factors is important:
- BMI + waist circumference
- Body fat percentage + fitness level
- Hormone status (e.g., testosterone, insulin, cortisol)
Men with a high BMI and concomitant energy loss, loss of libido, or mood swings should have their hormone balance checked via laboratory diagnostics.
Conclusion: BMI as an entry point, not the sole criterion
The Body Mass Index is an easy-to-use tool for initial guidance, but not a complete diagnostic instrument. For men focusing on vitality, hormones, and long-term health, BMI should be combined with other values.