How to Lose Fat (and Keep Your Muscle)
Fat loss is simpler than the supplement industry wants you to believe. Eat fewer calories than you burn, keep protein high, and keep lifting. Do that consistently and the fat comes off while your muscle stays. Here is the whole playbook.
The one thing that matters: a calorie deficit
Fat loss requires burning more energy than you consume — a calorie deficit. No food, supplement or workout overrides this. Every successful diet, whatever its name, works by creating a deficit. Everything else is a tool to make that deficit easier to sustain and to protect your muscle while you do it.
Keep protein high
Protein is the most important macronutrient when cutting. It preserves muscle in a deficit, keeps you full, and has the highest thermic effect (your body burns more digesting it). Aim for about 1.6 to 2.2 g per kg of bodyweight per day, or a bit higher when very lean. See how much protein.
Keep lifting
In a deficit, lifting tells your body to keep its muscle. Drop resistance training and a chunk of your weight loss can come from muscle, leaving you "skinny-fat." Keep training hard with challenging weights — you may not set personal records while cutting, but maintaining your lifts maintains your muscle.
Lose at the right rate
Aim to lose about 0.5 to 1 percent of bodyweight per week:
- Slower preserves more muscle and is easier to sustain.
- Faster than about 1 percent per week risks muscle loss, low energy and rebound.
For most people that is roughly 0.5 kg (1 lb) a week. Patience here pays off in how you look at the end.
Manage hunger and adherence
The hard part of fat loss is sticking to it. Make it easier:
- Build meals around protein and high-volume, filling foods (vegetables, fruit, lean proteins).
- Keep some carbs around training for energy.
- Drink enough water and get enough sleep (poor sleep raises hunger).
- Allow flexibility so the diet fits your life and you can maintain it.
Consistency over weeks beats perfection for a few days.
Cardio and steps
Cardio is optional but helpful — it increases the calories you burn, supporting the deficit. Daily steps (general activity) are an underrated, low-fatigue way to burn energy. You do not need hours of cardio; diet creates the deficit, and activity supports it. See cardio for fat loss.
- Fat loss requires a calorie deficit — nothing overrides that.
- High protein preserves muscle and controls hunger while cutting.
- Keep lifting so your weight loss comes from fat, not muscle.
- Aim to lose about 0.5 to 1 percent of bodyweight per week.
- Cardio and steps support the deficit; diet creates it.
Track your lifts through a cut to make sure you are keeping muscle, not losing it.
Keep your strength while cutting →Frequently asked questions
What is the best diet for fat loss?
The best diet is the one you can stick to that keeps protein high and creates a calorie deficit. Keto, low-fat, intermittent fasting and the rest all work only because they help you eat fewer calories.
Can I lose fat without cardio?
Yes. Diet creates the deficit, so fat loss is possible with no cardio at all. Cardio and daily steps simply make the deficit easier by increasing energy burned.
How fast should I lose weight?
About 0.5 to 1 percent of bodyweight per week. Slower rates preserve more muscle and are easier to sustain. Very rapid loss tends to cost muscle and rebound.
Can I target fat loss from specific areas?
No. Spot reduction is a myth. You lose fat across your whole body in a pattern set largely by genetics. Training a body part builds the muscle underneath but does not burn the fat on top of it specifically.
Related guides
Calorie Deficit: The Foundation of Fat Loss
What a calorie deficit is, how to calculate yours from your TDEE, how big it should be, and how to maintain it without losing muscle or your sanity.
How Much Protein Do You Need to Build Muscle?
How much protein you need per day to build muscle and lose fat, the best protein sources, and how to time and distribute it for the best results.
Cardio for Fat Loss: HIIT vs LISS
Cardio for fat loss explained: HIIT vs steady-state (LISS), how much cardio you need, and how to add it without hurting your lifting and recovery.
Bulking vs Cutting: Which Should You Do?
Bulking vs cutting explained: what each phase is, how to choose based on your body fat, how long to run them, and how to avoid the common mistakes.
This guide is general educational information, not medical advice. Train within your ability and consult a qualified professional before starting a new program if you have an injury or health condition.
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