Hormones and Belly Fat: What You Need to Know

Affinity Health, a leading provider of high-quality health cover, explores the link between hormones and belly fat.

“According to Harvard Health, belly fat is more than just a cosmetic concern. It’s a serious health risk,” says Murray Hewlett, CEO of Affinity Health.

“Various factors contribute to the buildup of belly fat, with hormones playing a crucial part.”

What is Belly Fat?

Belly fat, often called visceral fat, is more than just a nuisance when trying to zip up your jeans. Visceral fat differs from the fat you can pinch with your fingers (subcutaneous fat). While both types of fat are unhealthy, visceral fat is more dangerous as it wraps around internal organs in the abdominal area, including your liver, pancreas, and intestines.1

How is Belly Fat Measured?

Belly fat is typically measured using waist circumference and waist-to-hip ratio. Here are three methods for measuring belly fat:2

1. Waist Circumference: Use a tape measure around your waist, just above the hip bones. A measurement over 40 inches for men and 35 inches for women indicates excess belly fat.

2. Waist-to-Hip Ratio: Use a tape measure to determine your waist size. Wrap it around the narrowest part of your waist, just above your belly button. Then, measure the widest part of your hips. Divide your waist number by your hip number. A ratio above 0.90 for men and 0.85 for women suggests higher belly fat. While this home test isn’t perfect, it can give you a ballpark idea of where you stand.

3. Imaging Tests: Advanced methods like CT scans and MRI can precisely measure visceral fat, but these are usually used for medical research and diagnosis rather than routine assessment.

The Role of Hormones in Belly Fat

Hormones serve as the body’s chemical signalling system, which is crucial in regulating metabolic rate, controlling appetite signals, and managing fat distribution throughout the body.3 Several essential hormones are particularly influential when it comes to belly fat:

Cortisol: When you’re anxious, your body produces cortisol, which can boost your appetite and cause weight gain, particularly around the midsection. Chronic stress keeps cortisol levels high, contributing to persistent belly fat.4

Insulin: This hormone is crucial for regulating blood sugar levels. When you eat, your body releases insulin to help cells absorb glucose from the bloodstream. However, excessive carbohydrate and sugar intake can lead to insulin resistance, where cells become less responsive to insulin.5 This condition can increase blood sugar levels and fat storage, particularly around the waist.

Leptin and Ghrelin: These two hormones regulate appetite and energy balance. Leptin, generated by fat cells, tells the brain to suppress appetite, while ghrelin promotes hunger in the stomach.6 Imbalances in these hormones may cause overeating and weight gain.

Oestrogen: Oestrogen levels in women fluctuate, especially during puberty, pregnancy, and menopause. Higher estrogen levels can promote fat storage, particularly in the hips and thighs, while lower levels during menopause can shift fat storage to the belly.7

Testosterone: Although primarily a male hormone, testosterone also affects women’s health. Low testosterone can cause increased body fat and decreased muscular mass, contributing to belly fat.8

The Dangers of Visceral Fat

Belly fat raises the likelihood of health problems, including:

Heart Disease: Visceral fat releases toxic compounds into the circulation, which may cause plaque to build up in the arteries. This condition, known as atherosclerosis, causes arteries to harden and narrow, increasing the chances of heart attacks and strokes.

Type 2 Diabetes: Visceral fat raises the risk of developing type 2 diabetes, which can result in complications like nerve damage, kidney failure, and eye problems.

Inflammation: Visceral fat actively produces substances that can cause inflammation. Chronic inflammation is a hidden factor in many diseases, including heart disease, diabetes, and certain types of cancer.

High Blood Pressure: Visceral fat can press on the kidneys, making it harder for them to regulate blood pressure. This increased pressure is a significant risk factor for heart disease and strokes.

Metabolic Syndrome: Visceral fat significantly contributes to Metabolic Syndrome – a cluster of conditions that elevate the risk of heart disease, stroke, and type 2 diabetes.

Non-Alcoholic Fatty Liver Disease (NAFLD): Visceral fat is a major cause of non-alcoholic fatty liver disease, where fat builds up in the liver without alcohol being involved. This condition can get worse and cause serious liver damage, such as inflammation and scarring.

Increased Cancer Risk: Research has shown that visceral fat can elevate the risk of certain cancers, including colorectal, breast, and pancreatic cancer.9

Managing Hormones to Reduce Belly Fat

While it’s challenging to control all factors affecting hormone levels, certain lifestyle changes can help manage your hormones and reduce belly fat:

• Include lots of fruits, vegetables, lean proteins, and healthy fats in your diet. Avoid too much sugar and refined carbohydrates to keep your insulin levels stable.
• Engage in both aerobic exercises (like walking, running, or cycling) and strength training. Exercise helps regulate insulin and cortisol levels, promotes muscle mass, and boosts metabolism.
• Make quality sleep a priority. Try to get seven to nine hours of quality sleep each night and maintain a consistent sleep schedule.
• Incorporate stress-reducing practices into your daily routine. Meditation, yoga, deep breathing exercises, and hobbies can help lower cortisol levels and reduce stress.
• Dehydration can increase cortisol levels. Drinking enough water can help maintain hormonal balance.
• Limit alcohol intake to moderate levels (up to one drink per day for women and up to two drinks per day for men). Alcohol disrupts hormone balance by interfering with the regulation of insulin, cortisol, and other hormones involved in metabolism and stress response.
• Schedule check-ups with your doctor to monitor your hormone levels and catch any imbalances early. Your doctor can also advise you on how to manage any hormonal issues.

Conclusion

Belly fat poses significant health risks due to its association with various chronic diseases and conditions. The good news is reducing visceral fat can be achieved with a healthy diet, regular exercise, and lifestyle changes. If you are concerned about belly fat, schedule a visit with your doctor who can accurately measure your waist circumference and waist-to-hip ratio and help you manage and mitigate the dangers associated with visceral fat.

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Author: Andrea Caknis from APC Publishers on behalf of Affinity Health.