Getting to a low body fat percentage comes down to a sustained caloric deficit, consistent strength training, and habits that support both. There’s no shortcut or single strategy that does it alone. The process requires patience, because losing fat without losing muscle is slower than simple weight loss, typically half a pound to one pound per week at a moderate deficit.
What “Low Body Fat” Actually Means
There’s no universally agreed-upon ideal body fat percentage. The numbers shift depending on your sex, age, and goals. That said, widely used fitness benchmarks place men in the “athletic” range at roughly 6 to 13% body fat and women at roughly 14 to 20%. For general fitness, 14 to 17% for men and 21 to 24% for women is a common target. A 2025 study defined “overweight” as 25% or higher for men and 36% or higher for women, with “obesity” starting at 30% for men and 42% for women.
Where you fall on that spectrum matters less than the trend. If you’re currently at 30% and want to reach 15%, you have a clear, measurable goal. Getting below 10% for men or 16% for women enters territory that’s difficult to maintain year-round and can interfere with hormonal health, so most people aiming for a “low” body fat percentage are targeting the athletic or lean fitness range rather than competition-level leanness.
Create a Moderate Caloric Deficit
Fat loss requires eating fewer calories than your body burns. Cutting roughly 500 calories per day from your usual intake produces about half a pound to one pound of fat loss per week. That pace feels slow, but aggressive deficits (800 to 1,000 calories or more) tend to strip away muscle along with fat, which is the opposite of what you want when chasing a lean physique.
To find your starting point, estimate your total daily energy expenditure using an online calculator that accounts for your activity level, then subtract 300 to 500 calories. Track your intake for two to three weeks and adjust based on what the scale and mirror show. If you’re losing more than a pound a week and you’re not significantly overweight, you’re cutting too hard. If the scale hasn’t moved after three weeks of consistent tracking, your estimate is too high.
One practical note: you don’t need to stay in a deficit forever. Periodic “diet breaks,” where you eat at maintenance for one to two weeks, can reduce the metabolic slowdown and psychological fatigue that come with extended cutting phases. Many people cycle between four to eight weeks of deficit eating and one to two weeks at maintenance until they reach their goal.
Prioritize Protein at Every Meal
Protein is the single most important macronutrient for body composition. It protects muscle tissue during a caloric deficit, costs more energy to digest than carbs or fat (burning roughly 20 to 30% of its calories during digestion), and keeps you fuller longer. Most research points to a daily intake of 0.7 to 1 gram per pound of body weight as the sweet spot for people who are training and trying to lose fat.
Spreading that protein across three to four meals appears to be more effective for muscle retention than cramming it into one or two sittings. Each meal should contain roughly 25 to 40 grams. Lean meats, fish, eggs, Greek yogurt, cottage cheese, and legumes are all reliable sources. If hitting your target through whole food alone is difficult, a protein shake can fill the gap without adding many extra calories.
Strength Training Drives the Process
Cardio helps burn calories, but resistance training is what reshapes your body composition. When you’re in a caloric deficit, your body looks for energy wherever it can find it. Lifting weights sends a strong signal that your muscle tissue is in use and shouldn’t be broken down for fuel. Without that signal, a significant portion of your weight loss will come from muscle, and you’ll end up lighter but not leaner.
Train each major muscle group at least twice per week. Compound lifts like squats, deadlifts, bench presses, rows, and overhead presses give you the most stimulus per session. Progressive overload, gradually increasing the weight, reps, or sets over time, is what forces your body to hold onto (or even build) muscle while you lose fat. If you’re newer to lifting, you can realistically gain muscle and lose fat simultaneously for the first several months.
Use Cardio Strategically
Cardio’s role in reaching low body fat is to widen the caloric gap without cutting food further. You have two main options, and both work. High-intensity interval training burns more total calories in less time and keeps your metabolic rate elevated for hours afterward as your body recovers. Low-intensity steady-state cardio (walking, easy cycling, light jogging) burns a higher percentage of calories from fat during the session but uses fewer total calories per minute.
The best approach for most people is a combination: two to three short HIIT sessions per week (15 to 25 minutes each) and daily low-intensity movement like walking 8,000 to 10,000 steps. This setup burns meaningful calories without generating so much fatigue that your strength training suffers. If you find yourself too exhausted to lift heavy, scale the cardio back. Strength training is the priority.
Sleep and Stress Aren’t Optional
Poor sleep actively works against fat loss. Sleep deprivation raises cortisol, the body’s primary stress hormone, and sustained high cortisol levels increase insulin in the bloodstream, which promotes the accumulation of belly fat and can push you toward metabolic problems over time. On top of that, sleep loss increases ghrelin (the hormone that triggers hunger) and decreases leptin (the hormone that signals fullness), leaving you feeling constantly hungry even when you’ve eaten enough.
Seven to nine hours of quality sleep per night is a realistic target. If you’re doing everything right with nutrition and training but stalling on fat loss, poor sleep or chronic stress is often the missing variable. Simple improvements like keeping a consistent bedtime, limiting screens an hour before sleep, and keeping your bedroom cool and dark can make a measurable difference within a few weeks.
Track Your Progress Accurately
The scale alone is a poor measure of body composition change. You can lose fat and gain muscle simultaneously, which means your weight stays flat while your body changes dramatically. Use multiple data points: progress photos every two to four weeks, waist and hip measurements, how your clothes fit, and how you look in the mirror.
If you want a body fat number, know the limitations of each method. DEXA scans are considered one of the more accurate options but still carry a margin of error. Bioelectrical impedance devices, like smart scales and handheld analyzers, can over- or underestimate your body fat by 3.5% or more. In research comparing BIA devices to DEXA, 45 to 84% of participants fell outside an acceptable accuracy range. These tools are best used to track trends over time rather than taken as precise readings. Weigh and measure under the same conditions each time (same time of day, same hydration level) so the direction of change is reliable even if the absolute number isn’t.
What to Eat (and What to Limit)
Beyond protein and total calories, the composition of your diet affects how easy or hard the process feels. Fill most of your plate with foods that provide volume and nutrients for relatively few calories: vegetables, fruits, lean proteins, whole grains, and legumes. These foods take longer to eat and digest, which helps manage hunger during a deficit. Aiming for 25 to 35 grams of fiber per day through whole foods like oats, beans, berries, and vegetables supports digestive health and adds bulk to meals.
Fats should make up roughly 20 to 35% of your total calories. Going too low on fat can disrupt hormone production, including testosterone and estrogen, which directly affect your ability to maintain muscle and lose fat. Prioritize sources like olive oil, avocados, nuts, and fatty fish.
Carbohydrates fill the remaining calories after protein and fat are set. There’s no need to go extremely low-carb unless you personally feel better that way. Carbs fuel intense training, and cutting them too aggressively often leads to poor workout performance, which undermines the strength training that’s protecting your muscle. Time a portion of your daily carbs around your workouts for the best energy and recovery.
How Long It Takes
Realistic timelines depend on where you’re starting. At a rate of roughly 0.5 to 1 pound of fat loss per week, someone starting at 25% body fat who wants to reach 15% might need 20 to 40 weeks, assuming they weigh around 180 pounds. The leaner you get, the slower the process becomes, because your body has less fat to pull from and ramps up hunger signals more aggressively.
The last few percentage points are always the hardest. Going from 20% to 15% feels noticeably easier than going from 15% to 10%. Below 10% for men or 18% for women, most people need very precise calorie tracking, minimal diet breaks, and a high tolerance for hunger. That level of leanness is achievable but rarely sustainable without the kind of structure that competitive athletes and bodybuilders use during peaking phases. For most people, settling into the athletic range and maintaining it year-round is the more practical and healthier goal.