Lowering your body fat percentage comes down to losing fat while keeping as much muscle as possible. That distinction matters: crash dieting drops the number on the scale, but much of what you lose is muscle, which actually makes your body fat percentage worse. The real goal is shifting your body’s ratio of fat to lean tissue, and that requires a combination of a moderate caloric deficit, enough protein, and strength training.
What Counts as a Healthy Body Fat Percentage
There’s no single agreed-upon “normal” range for body fat. However, a 2025 study using US national survey data defined overweight as 25% body fat or higher for men and 36% or higher for women. Obesity thresholds were set at 30% for men and 42% for women. Athletes typically carry much less: men in the low teens or single digits, women in the high teens to low twenties. Where you want to land depends on your goals, but most people searching for ways to lower their percentage are aiming for a leaner, more muscular look rather than a specific clinical target.
Set a Moderate Caloric Deficit
You need to eat fewer calories than you burn, but the size of that gap matters enormously. A deficit that’s too aggressive causes your body to break down muscle for energy, which defeats the purpose. A small, controlled deficit lets you lose fat while still fueling workouts and recovery. For most people, reducing daily intake by 300 to 500 calories below maintenance is the sweet spot. You can estimate your maintenance calories using an online calculator based on your weight, height, age, and activity level, then subtract from there.
A safe and sustainable rate of fat loss is about one to two pounds per week. Faster than that and you’re almost certainly losing muscle along with fat. At that pace, expect to lose roughly four to eight pounds in a month. It sounds slow, but because you’re preserving muscle, the change in how you look and in your actual body fat percentage will be more dramatic than the scale suggests.
Prioritize Protein
Protein is the single most important nutrient for changing your body composition. It preserves muscle during a caloric deficit, keeps you full longer, and requires more energy to digest than carbs or fat. Research on athletes losing weight recommends 1.6 to 2.4 grams of protein per kilogram of body weight per day. For a 175-pound person (about 80 kg), that’s roughly 128 to 192 grams daily. Going above 2.4 grams per kilogram doesn’t appear to provide additional muscle-sparing benefits, so there’s a ceiling to how much protein helps.
In practical terms, this means building every meal around a protein source: eggs, chicken, fish, Greek yogurt, cottage cheese, tofu, or lean beef. If you’re struggling to hit your target through whole foods alone, a protein shake can fill the gap. Spread your intake across three to five meals rather than loading it all into one or two sittings, since your body can only use so much protein for muscle repair at once.
Lift Weights Consistently
Resistance training is the strongest signal you can send your body to hold onto muscle while you’re in a deficit. Without it, your body has little reason to maintain metabolically expensive muscle tissue when calories are scarce. Strength training also directly reduces fat mass on its own, as confirmed across multiple meta-analyses, even though it’s often overlooked in favor of cardio.
Aerobic exercise like running or cycling is effective for burning calories and reducing visceral fat (the deep fat around your organs), and network analyses rank it as the best single mode for reducing overall body weight and waist circumference. But for body fat percentage specifically, you need both sides of the equation: losing fat and maintaining (or building) muscle. That makes resistance training non-negotiable.
A realistic starting point is three to four strength sessions per week, hitting each major muscle group at least twice. Focus on compound movements like squats, deadlifts, rows, presses, and pull-ups. These recruit the most muscle mass per exercise and give you the best return on your time. Progressive overload, gradually increasing weight or reps over weeks, is what drives continued adaptation.
Move More Outside the Gym
The calories you burn through everyday movement, everything from walking to fidgeting to doing dishes, are collectively called non-exercise activity thermogenesis, or NEAT. This is a surprisingly large and often overlooked part of your daily calorie burn. Research from the Mayo Clinic found that NEAT can vary by up to 2,000 calories per day between two people of similar size. In one study, obese sedentary individuals sat about two and a half hours more per day than lean sedentary individuals with similar jobs, while the leaner group stood or walked over two hours longer each day.
You don’t need to force yourself into a standing desk all day, but small shifts add up. Take phone calls while walking. Park farther away. Use stairs instead of elevators. Set a reminder to stand and move for five minutes every hour. These habits won’t replace structured exercise, but they create a meaningful calorie buffer that supports your deficit without making you feel like you’re dieting harder.
Use Diet Breaks to Avoid Plateaus
When you eat in a deficit for weeks on end, your body adapts. Hunger hormones increase, your metabolic rate dips, and fat loss stalls. Two strategies can counteract this: refeeds and diet breaks.
A refeed is a short period of one to three days where you eat at or slightly above your maintenance calories, primarily by adding carbohydrates. How often you need one depends on how lean you already are. If you’re relatively lean (under about 18% body fat for men or 24% for women), a two- to three-day refeed every 10 to 14 days is a reasonable starting frequency. If you carry more body fat, you can typically stay in a deficit longer, with a half-day or full-day refeed every two to three weeks being sufficient.
A diet break is longer: one to two full weeks at maintenance calories. This allows a more complete reversal of the metabolic slowdown that accumulates during extended dieting. People with moderate body fat levels generally benefit from a diet break every six to eight weeks. Leaner individuals may need one every three to four weeks, while those with significantly more fat to lose can often push 12 to 16 weeks before needing a full break. These pauses aren’t setbacks. They’re strategic resets that make the next phase of fat loss more effective.
Sleep and Stress Matter More Than You Think
Poor sleep directly undermines fat loss. When you’re sleep-deprived, your body shifts toward burning muscle instead of fat during a deficit, hunger hormones spike, and your willpower around food drops. Aim for seven to nine hours per night. If you’re doing everything else right but sleeping six hours, that’s likely the bottleneck.
Chronic stress elevates cortisol, a hormone that promotes fat storage, particularly around the midsection, and increases cravings for calorie-dense foods. You don’t need to meditate for an hour a day, but finding even one reliable way to manage stress, whether it’s a walk, a hobby, or simply better boundaries around work, supports the hormonal environment your body needs to let go of fat.
Putting It All Together
Lower your calories by a moderate amount, roughly 300 to 500 below maintenance. Eat 1.6 to 2.4 grams of protein per kilogram of body weight every day. Lift weights three to four times per week with progressive overload. Add cardio for extra calorie burn and heart health, but don’t rely on it alone. Increase your daily movement outside of formal exercise. Schedule refeeds or diet breaks based on your current leanness. Sleep enough and manage stress. This combination, sustained over months rather than weeks, is what reliably shifts body fat percentage downward while keeping the muscle you’ve worked to build.