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If you’ve been stuck trying to figure out how to lose fat, this is the no-fluff guide to fat loss — and staying lean for good. In this video, learn how to cut body fat, preserve muscle, and reach a maintainable 12% body fat using smart training, strategic nutrition, and psychology. Whether you're looking to lose fat or finally learn how to lose body fat without rebounding, this is your blueprint. To get to 12% body fat from 15%, it took me just six weeks. But based on a DEXA scan analysis of 9,000+ American men, fewer than 1% ever reach 12% or below. That’s why understanding how to lose fat strategically, not just quickly, is critical — and why I worked with five top scientists and elite coaches to bring you this plan.
Calorie calculator:
3-Day Workout Routine:
4-Day/Week and 5-Day/Week Workout Routines:
6-Day Workout Routine (old, but still good!):
First, how to lose body fat without losing muscle with Dr. Mike Israetel from RP Strength. If you lose weight without lifting, up to 50% of that can be muscle. That not only gives a “skinny” look instead of “lean,” it also cranks up hunger and cravings. Your biggest weapon when aiming to lose fat while preserving muscle? Weight training. One adjustment Dr. Mike recommends in a fat loss phase is using lighter weights with higher reps. Your strength may dip, but your endurance improves — and higher rep training still protects muscle just as well. When should you switch to this approach? Continue training normally until you feel real fatigue and strength begins to decline.
How to cut body fat with the right workout split: Dr. Mike suggests that slightly more frequent training — hitting each muscle group 2–3x per week — is more effective during a fat loss phase. Massive workouts that train just one muscle become less effective when you’re depleted. Instead, go for:
3x/week: Full body 4x/week: Upper/lower 5x/week: U/L/P/P/L 6x/week: P/P/L/P/P/L
A recent study showed even just 2 short full-body workouts a week (6 sets per muscle total) helped preserve 100% of muscle mass — even when combined with 5 hours of cardio. This shows that training smarter, not necessarily more, is key when figuring out how to lose fat without sacrificing muscle.
"You can eat junk food and still lose fat and maintain lean mass.” – Dr. Layne Norton. Here’s how to lose body fat through your diet: start by determining your protein intake: 1.8 to 2.8g per kg of body weight. Then split the rest of your calories between carbs and fats based on what you’ll stick to long term. Whether you like savory or sweet, it’s adherence that matters most. For fat sources, think olive oil, peanut butter, and eggs. Carbs can be timed around workouts: oats before, potatoes after. And yes — even sugar isn’t the enemy. In a calorie deficit, sugar doesn’t prevent fat loss. What matters most is your total macros and calories.
Now, how many calories do you need for fat loss? Multiply your weight in lbs by 10–13 to estimate your starting point. Adjust based on your activity level. But remember: these calculators can be off by 500+ calories. Instead, track your weight daily and aim for 1–2 lbs of fat loss per week. If things stall, adjust. My app did this for me — taking me from 2,300 to 2,000 calories after four weeks — which was essential for continuing to lose fat as my metabolism adapted.
As Dr. Eric Trexler explains, your body adapts fast. For every 5% weight drop, you may burn 100–200 fewer calories daily. This slows progress dramatically. The fix? If your weight stalls for 2 weeks, lower calories by 100–150. But know your limit: don’t try to cut body fat by more than 10% in a single phase. Instead, pause, maintain, or lean bulk before going for another drop.
Dr. Eric Helms shares how to lose fat with cardio — the right way. More cardio doesn’t always equal more fat loss. Your body tends to offset calorie burn by moving less or increasing hunger. Instead, let your diet do the heavy lifting. Cardio helps with appetite regulation and energy balance — but it’s not the main tool. If you get fewer than 7–9k steps a day, fix that first. Then aim to walk more or add 2–3 cardio sessions weekly, only when necessary. This is how to cut body fat without over-relying on cardio.
According to Laurin Conlin, mindset traps derail even the best plans. One big one? Eating food that’s not even enjoyable just because it’s there. Save calories for meals that truly matter. Another trap? Guilt. Restricting all day before a big meal leads to overeating and the shame spiral. Instead, eat normally beforehand and enjoy the experience. And when it comes to hunger, stop trying to hack it. Accept that it’s part of the process.
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By: Jeremy Ethier Title: The Fastest Way to 12% Body Fat (From Any Start Point) Sourced From: www.youtube.com/watch?v=BPjmmZlDhNc
