Visceral Fat: What is it, and how can it be reduced?

Not all belly fat is visceral, and visceral fat is not visible from the outside. It is typically identified with a body scan or an MRI, though waist circumference is a reasonable proxy in practice.

There are four evidence-backed levers for reducing visceral fat: diet, exercise, sleep, and stress management. Among these, diet stands out as the most impactful, but all four work together, and neglecting any one of them undermines the others.

Eating a diet rich in protein, fibre, and healthy fats, while reducing carbohydrates and added sugars, is the single most effective way to reduce visceral fat. Processed foods are typically high in trans fats, which accumulate readily as visceral fat, and high-calorie juices and sodas should be minimised or avoided.

Lower carbohydrate intake specifically targets visceral fat. A study on obese subjects with type 2 diabetes compared a low-calorie/low-carbohydrate diet (1000 kcal per day: 25% protein, 40% carbohydrate, 35% fat) against a low-calorie/high-carbohydrate diet (1000 kcal per day: 25% protein, 65% carbohydrate, 10% fat) over four weeks (Sasakabe, Haimoto, Umegaki, & Wakai, 2015).

Both groups lost similar amounts of body weight and had similar reductions in blood glucose. But the low-carbohydrate group saw a much larger drop in fasting insulin (-30% versus -10%), an increase in HDL cholesterol (+15%, with no change in the high-carbohydrate group), and, most notably, a substantially larger reduction in visceral fat area (-40 cm² versus -10 cm²). The ratio of visceral to subcutaneous fat also fell in the low-carbohydrate group (from 0.69 to 0.47) while staying essentially flat in the high-carbohydrate group.

This is not an isolated result. Multiple studies across different populations, from those maintaining weight to those at risk of type 2 diabetes, show similar patterns favouring lower-carbohydrate approaches for visceral fat reduction specifically (Gower & Goss, 2015; Goss et al., 2013; Volek et al., 2004).

In practice, that means moderating carb-dense foods such as bread, tortillas, bagels, rice, pasta, and crackers, and switching sugary drinks for sugar-free alternatives where possible.

Building a diet around whole foods, lean protein, and plant-based fats, while limiting processed meat and sugar-laden dairy products, supports healthier fat distribution over time.

Regular physical activity is a core lever for reducing visceral fat, alongside diet. Aerobic activity such as walking, jogging, swimming, cycling, or hiking for around 150 minutes (2.5 hours) a week is a reasonable baseline target. Strength training that works large muscle groups adds to this effect.

High-Intensity Interval Training (HIIT) is another effective format. Examples include bike sprints (a comfortable pace for two minutes, followed by 15 to 20 seconds of hard sprinting) or treadmill intervals at a 10% incline with speed slightly above your usual jogging pace.

Compound strength movements such as squats and deadlifts also improve insulin sensitivity and help reduce systemic inflammation, both of which support fat loss including visceral fat reduction (Vissers et al., 2013).

Insufficient sleep is a direct trigger for visceral fat gain. A Mayo Clinic study found that inadequate sleep produced a 9% increase in total abdominal fat area and an 11% increase specifically in abdominal visceral fat, compared with a normal-sleep control condition (Mayo Clinic, 2022).

Importantly, “catching up” on sleep afterwards reduced calorie intake and body weight, but did not reverse the visceral fat increase, at least in the short term. More than a third of adults routinely fall short on sleep, often driven by shift work and late-night device use, and people tend to eat more during extended waking hours without a corresponding rise in activity.

Chronic stress raises cortisol, and elevated cortisol is directly linked to increased visceral fat storage (Jackson, Kirschbaum, & Steptoe, 2017). Meditation, deep breathing, yoga, and other relaxation practices are practical ways to help keep cortisol levels in check, and by extension support healthier fat distribution.

Managing visceral fat is multifaceted, and diet, exercise, sleep, and stress management all contribute. Diet has the largest single effect: a balanced diet built around lean protein, fruit, and vegetables, with carbohydrates and processed foods kept in check, moves the needle the most. Regular activity adds to this by improving metabolic rate and hormonal balance. Sleep quality and stress management round out the picture, since both directly affect the hormones that govern where your body stores fat.

Supplements are not a substitute for the fundamentals above, but the right formula can support your efforts, in conjunction with a healthy diet and lifestyle.

Not sure where to start? Contact us for personalised advice and recommendations.

Visceral fat carries real health risk, but it responds well to the fundamentals: a lower-carbohydrate, whole-food diet, regular aerobic and strength training, consistent sleep, and active stress management. None of these work in isolation, and no supplement replaces them, but together they give you a genuinely evidence-based path to reducing it, in conjunction with a healthy diet and lifestyle.