A simple measurement using a tape measure can indicate if abdominal fat poses a significant health risk, a GP has explained. While body mass index (BMI) is a common metric for assessing weight, it fails to account for where fat is stored on the body.
Dr. Philippa Kaye, a general practitioner, recommends the waist-to-height ratio as a more accurate predictor of health concerns such as type 2 diabetes, heart disease, and stroke. The guideline is that a person's waist circumference should be less than half of their height. For someone who is 175cm tall, their waist should measure under approximately 87 to 88cm. This measurement should be taken after a normal exhale, not with the stomach pulled in.
This ratio is crucial because it specifically targets visceral fat, the fat that accumulates deep within the abdomen and surrounds vital organs like the liver, pancreas, and intestines. Visceral fat is metabolically active, releasing hormones and inflammatory chemicals that can disrupt normal bodily functions, leading to increased blood sugar, elevated blood pressure, and poorer cholesterol levels. This type of fat is often associated with an 'apple' body shape and can increase health risks even in individuals who do not appear significantly overweight, a condition sometimes referred to as TOFI (thin outside, fat inside).
Subcutaneous fat, which lies just under the skin and is the type that can be pinched at the waist or hips, is generally less harmful. While often called a 'beer belly,' the accumulation of visceral fat is not solely caused by alcohol consumption. The primary driver is consuming more energy than the body expends. Alcohol contributes due to its calorie density and its effect on fat metabolism, but other factors such as genetics, diet, inactivity, poor sleep, and stress also play significant roles.
Men tend to store fat around the abdomen more readily than women due to hormonal differences, though women may experience a shift towards abdominal fat storage after menopause. Fortunately, visceral fat is often more responsive to lifestyle changes than subcutaneous fat. Engaging in regular aerobic and resistance exercises, adopting a diet rich in vegetables, fruits, whole grains, and lean proteins while reducing processed foods and sugary drinks, and managing sleep and stress can all contribute to reducing dangerous abdominal fat. Even a modest weight loss of 5 to 10 percent can lead to significant improvements in health markers within months.