Subcutaneous Fat: What It Is, Health Risks, and How to Reduce It

Last updated April 2026

Subcutaneous fat is the layer of adipose tissue stored directly beneath your skin — the fat you can pinch between your fingers. It makes up roughly 90% of your total body fat and serves essential roles like insulating your body, cushioning organs, and storing energy, though carrying too much is linked to increased health risks (Cleveland Clinic).

Everyone has subcutaneous fat, and a healthy amount of it is completely normal. The concern arises when levels become excessive — which can happen gradually through a combination of diet, activity levels, hormones, and genetics. Below, we'll break down exactly what subcutaneous fat does, how it differs from visceral fat, how to measure it, and evidence-based strategies for bringing it down to a healthier range.

What Does Subcutaneous Fat Actually Do?

Your skin has three layers: the epidermis (outer layer), dermis (middle layer), and the subcutaneous layer (deepest layer). That deepest layer is where subcutaneous fat lives, and it performs several functions your body depends on.

It regulates your internal temperature by expanding blood vessels when you're overheated and insulating you when it's cold. It cushions your muscles, bones, and organs against impact. It connects your skin to underlying muscle and bone through connective tissue. And it stores energy that your body can tap into during extended physical activity or periods between meals.

Subcutaneous fat is also metabolically active. It produces leptin, a hormone that signals fullness to your brain, and adiponectin, which helps regulate insulin sensitivity (Harvard Health). In moderate amounts, subcutaneous fat is protective — some research even suggests it may buffer against certain metabolic risks in people who also carry excess visceral fat.

The problem starts when you accumulate more than your body needs.

Subcutaneous Fat vs. Visceral Fat

One of the most important distinctions in body composition is the difference between subcutaneous and visceral fat. They're stored in different places, behave differently, and carry different levels of health risk.

Visceral fat is widely considered the more dangerous of the two because it releases inflammatory cytokines and fatty acids directly into the portal vein, disrupting liver function and insulin signaling (PMC). But here's the important nuance: people with high subcutaneous fat often have high visceral fat too. If you're carrying noticeable subcutaneous fat — especially around your midsection — it's worth checking your visceral fat levels as well.

For a deeper dive, see our full guide: Subcutaneous vs. Visceral Fat: Key Differences and Measurement Methods.

What Causes Excess Subcutaneous Fat?

Subcutaneous fat accumulates when your body consistently takes in more energy than it burns. But the picture is more nuanced than "eat less, move more." Several interconnected factors determine how much you carry and where.

Calorie surplus and diet quality. A diet heavy in ultra-processed foods, added sugars, and refined carbohydrates drives fat storage — particularly in the abdominal region. On the other hand, diets rich in lean protein, fiber, whole grains, and healthy fats support healthier body composition over time.

Physical inactivity. Sedentary behavior and low muscle mass both contribute to fat accumulation. Muscle tissue is metabolically active — it burns calories even at rest — so less muscle means fewer calories burned throughout the day. This is why body composition exercises that build lean mass are especially valuable.

Genetics. Your genetic blueprint influences where your body stores fat and how easily you accumulate it. Some people are predisposed to carry more fat in their thighs and hips, while others store it primarily in the abdomen. However, lifestyle factors can significantly modify genetic risk — even with a family history of obesity, consistent healthy habits make a meaningful difference.

Hormonal factors. Insulin resistance, elevated cortisol from chronic stress, and shifts in estrogen (particularly during menopause) all promote subcutaneous fat storage. Women tend to carry more subcutaneous fat than men, especially in the hips, thighs, and buttocks. After menopause, fat distribution often shifts toward the midsection.

Age. Your resting metabolic rate naturally declines with age — roughly 2–3% per decade after 30 — largely due to gradual loss of muscle mass (sarcopenia). Without adjustments to diet and activity, this metabolic slowdown leads to gradual fat accumulation.

Stress and sleep deprivation. Chronic stress elevates cortisol, which promotes fat storage around the abdomen. Poor sleep disrupts hunger-regulating hormones: ghrelin (which increases appetite) rises, while leptin (which signals fullness) drops. Both effects make it harder to maintain a healthy energy balance.

Medications. Certain prescriptions — including some antidepressants, antipsychotics, corticosteroids, and diabetes medications — can alter metabolism or appetite, contributing to fat gain.

Health Risks of Excess Subcutaneous Fat

Subcutaneous fat on its own is less metabolically dangerous than visceral fat. But in excess, it still contributes meaningfully to health risk — especially when concentrated around the abdomen.

Cardiovascular disease. Research ties excess abdominal subcutaneous fat to increased risk of atherosclerosis (plaque buildup in arteries), heart attack, and stroke. Subcutaneous fat produces substances that promote low-grade inflammation and arterial damage over time.

Insulin resistance and type 2 diabetes. When subcutaneous fat cells expand beyond their healthy capacity (a process called adipocyte hypertrophy), they become less responsive to insulin. Abdominal subcutaneous fat is particularly associated with insulin resistance, while interestingly, thigh fat appears to carry less metabolic risk.

Chronic inflammation. Excess subcutaneous fat releases inflammatory cytokines that contribute to systemic, low-grade inflammation — a factor linked to conditions including arthritis, certain cancers, and neurodegenerative diseases.

Joint stress and mobility. The added mechanical load of excess body fat puts pressure on weight-bearing joints, particularly the knees, hips, and lower back. This contributes to pain, reduced mobility, and higher rates of osteoarthritis.

The takeaway: while you don't need to fear subcutaneous fat, keeping it within a healthy range meaningfully protects long-term health. A good starting point is understanding how much you actually have.

How to Measure Subcutaneous Fat

Not all measurement methods are created equal. Here's how the most common approaches compare:

At-home screening thresholds worth knowing:

Waist circumference above 35 inches for women or 40 inches for men signals increased health risk. A waist-to-height ratio above 0.5 is another reliable indicator that it's time to take action (Cleveland Clinic).

For the most accurate picture — including how fat is distributed across different body regions and how much of it is visceral — a DEXA scan provides data that other methods simply can't match. You can also estimate your body fat percentage at home with our free Body Fat Percentage Calculator.

How to Reduce Subcutaneous Fat

Reducing subcutaneous fat comes down to creating a sustainable calorie deficit while preserving lean muscle mass. Here's what the evidence supports:

Establish a moderate calorie deficit. Aim for a deficit of 300–500 calories per day, which typically translates to about 0.5–1 pound of fat loss per week. Larger deficits often lead to muscle loss and metabolic slowdown, which makes long-term results harder to maintain. Knowing your resting metabolic rate helps you set a more accurate target.

Prioritize protein. Protein supports satiety (keeping you fuller longer), preserves muscle during a deficit, and has a higher thermic effect than carbs or fat — meaning your body burns more calories digesting it. Aim for roughly 0.7–1 gram per pound of your goal body weight daily (ISSN Position Stand).

Build and maintain muscle through strength training. Resistance training 2–3 times per week is one of the most effective strategies for improving body composition. More muscle mass raises your resting metabolic rate, meaning you burn more calories even when you're not exercising. Compound movements like squats, deadlifts, rows, and presses deliver the best return on time invested. See our body composition exercises guide for a full program.

Add cardiovascular exercise. The CDC recommends at least 150 minutes of moderate-intensity aerobic activity per week (brisk walking, cycling, swimming) or 75 minutes of vigorous activity. For fat loss, combining steady-state cardio with 1–2 HIIT sessions per week can be especially effective — research shows HIIT reduces both subcutaneous and visceral fat efficiently over 8–12 week programs.

Manage stress. Chronic stress keeps cortisol elevated, which promotes fat storage in the abdominal area and drives cravings for high-calorie comfort foods. Even 10–15 minutes of daily stress management — meditation, deep breathing, yoga, or a walk in nature — can help regulate cortisol levels.

Prioritize sleep. Aim for 7–9 hours per night. Sleep deprivation disrupts ghrelin and leptin (your hunger hormones), reduces insulin sensitivity, and shifts your body toward burning muscle instead of fat during a calorie deficit.

Focus on whole, nutrient-dense foods. Build your meals around lean protein, vegetables, fruits, whole grains, and healthy fats. Minimize ultra-processed foods, sugary drinks, and refined carbohydrates — these spike blood sugar and promote fat storage.

Common Mistakes When Trying to Lose Subcutaneous Fat

Trying to spot-reduce. You cannot target fat loss from a specific body part by exercising that area. Hundreds of crunches won't preferentially burn belly fat. Fat loss happens systemically — your body decides where it comes off first based largely on genetics. The effective approach is reducing overall body fat through a combination of diet and full-body exercise.

Relying only on cardio. Cardio burns calories during the session, but without strength training, you risk losing muscle along with fat. Less muscle means a lower metabolic rate, which makes it progressively harder to maintain fat loss. Resistance training is non-negotiable for sustainable body composition improvement.

Crash dieting. Very aggressive calorie restriction (eating well below your BMR) triggers adaptive thermogenesis — your body's survival mechanism that slows metabolism to conserve energy. This makes the initial weight loss stall and makes regain almost inevitable once normal eating resumes.

Ignoring body composition data. The bathroom scale can't tell you whether you're losing fat or muscle. Two people at the same weight can have dramatically different body compositions and health profiles. Tracking with a DEXA scan every 8–12 weeks gives you the precise data to know whether your plan is actually working — or if adjustments are needed. This is especially important because subcutaneous fat is stubborn and often the last type to go; your body may lose visceral fat first, which improves health even before you see visible changes.

Frequently Asked Questions

Is subcutaneous fat dangerous?
In moderate amounts, no — subcutaneous fat serves important biological functions. However, excess subcutaneous fat (particularly around the midsection) is associated with increased risk of cardiovascular disease, insulin resistance, and chronic inflammation. It's also a signal that visceral fat levels may be elevated too. Check our visceral fat level chart to understand healthy thresholds.

Can you turn subcutaneous fat into muscle?
No. Fat and muscle are completely different types of tissue. You can't convert one into the other. What you can do is lose fat while building muscle simultaneously — a process called body recomposition — through strength training and a protein-rich diet.

Why is subcutaneous fat harder to lose than visceral fat?
Visceral fat is more metabolically active, which means it responds more quickly to calorie deficits and exercise. Subcutaneous fat, by contrast, is designed for longer-term energy storage and tends to be the last to decrease. Consistency over weeks and months — not crash diets — is what moves the needle.

How long does it take to lose subcutaneous fat?
A realistic, sustainable pace is 0.5–1 pound of total fat loss per week. Where your body loses fat first depends on genetics — some people see abdominal changes quickly, while others notice arms or legs leaning out first. Expect meaningful, visible changes over 8–12 weeks of consistent effort.

Does subcutaneous fat come back after losing it?
It can, if the habits that reduced it aren't maintained. The key is building sustainable routines rather than relying on short-term diets. Regular body composition monitoring helps you catch trends early before small gains become large ones.

What's the best way to track subcutaneous fat loss over time?
A DEXA scan is the gold standard for precision body composition tracking. It shows exactly how much fat and lean mass you have in each region of your body, including a visceral fat estimate. Between scans, waist circumference and progress photos provide useful supplementary data. For a quick at-home estimate, try our free body fat percentage calculator.

Take the Guesswork Out of Your Body Composition

You can measure your body fat percentage, lean mass, visceral fat, and bone density — all in a single 10-minute DEXA scan. BodySpec scans show you exactly where fat is distributed across your body, so you can set targeted goals and track real progress over time. Your data accumulates across scans, making it easy to see what's working and where to adjust.

Book a DEXA scan today →