Macros for 170 lb Men (Cutting, Gentle (15%) Deficit, Moderately Active)
Written and reviewed by
Andrew Menechian, Head of Fitness, FitCommit
PN1, PNC 1&2, Poliquin PICP 1&2 · Updated April 2026
A 170 lb moderately active male on a Gentle (15%) cutting diet needs 2,288 calories a day to lose fat without cannibalizing muscle. That is a 401 calorie deficit against a 2,689 TDEE, projecting about 0.8 lbs of fat loss per week. Protein is set at 145g, scaled to deficit size per Andrew Menechian's framework, to protect the 139 lbs of lean mass that drive your metabolism through the cut. Carbs land at 283g for training fuel, fat at 64g for the hormonal floor. Expect the scale to move in waves, not a straight line. If the weekly average stalls three weeks running, drop another 100 cal/day. If it moves faster than 1% of body weight per week, add 150 back to keep muscle intact.
Comparing weights? See the same plan for a 160 lb man or a 180 lb man. Prefer a different goal? Try bulking macros at 170 lbs or maintenance macros at 170 lbs. Or see the same macros for a 170 lb woman.
2,288
Calories
~15% calorie deficit (Gentle)
145g
Protein
580 cal (25%)
283g
Carbs
1132 cal (50%)
64g
Fat
576 cal (25%)
Running a 401 cal/day deficit (20% below TDEE). Expect ~0.8 lbs of fat loss per week while protecting 139 lbs of lean mass.
4 weeks
166.8 lbs
8 weeks
163.6 lbs
12 weeks
160.4 lbs
How These Macros Were Calculated
| Body Weight | 170 lbs |
|---|---|
| Estimated Lean Mass | 139 lbs (82% of body weight) |
| Lean Mass (kg) | 63.2 kg |
| BMR (Katch-McArdle) | 1,735 cal/day |
| TDEE (BMR x 1.55) | 2,689 cal/day |
| Target Calories | 2,288 cal/day |
| Daily Deficit | 401 cal/day (20% deficit) |
| Expected Weekly Change | 0.8 lbs loss per week |
BMR uses the Katch-McArdle formula (370 + 21.6 x lean mass kg), which accounts for lean mass and outperforms Harris-Benedict for accuracy across different body compositions. Lean mass estimated at 18% average body fat for men. Activity multiplier 1.55 = moderate exercise 3-5 days per week.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 145g | 580 | 25% |
| Carbohydrates | 283g | 1132 | 50% |
| Fat | 64g | 576 | 25% |
| Total | - | 2,288 | 100% |
Protein is set at 2.3g per kg of lean body mass (139 lbs lean mass for this man), scaled to the 15% deficit. Fat targets 25% of target calories with a unisex floor of max(0.5g per kg body weight, 20% of calories) applied if the percentage drops below it. Carbs fill the remaining calories, with a 50g minimum for brain function.
Meal Split Examples
3 Meals Per Day
- Per-meal calories763 cal
- Per-meal protein48g
- Per-meal carbs94g
- Per-meal fat21g
4 Meals Per Day
- Per-meal calories572 cal
- Per-meal protein36g
- Per-meal carbs71g
- Per-meal fat16g
5 Meals Per Day
- Per-meal calories458 cal
- Per-meal protein29g
- Per-meal carbs57g
- Per-meal fat13g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 48g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 145g
- 5 x 100g chicken breast (31g each)
- 24 large eggs (6g each)
- 7 scoops protein powder (22-25g each)
- 6 x 100g canned tuna (25g each)
Carbs: 283g
- 6 cups cooked brown rice (45g each)
- 5 cups dry oats (54g each)
- 11 medium sweet potatoes (26g each)
- 19 cups mixed berries (15g each)
Fat: 64g
- 5 tbsp olive oil (14g each)
- 4 half avocados (15g each)
- 5 oz almonds (14g each)
- 13 large whole eggs (5g fat each)
These are rough equivalents. Most meals contain a mix of all three macros. Use a food tracking app for precise logging.
How Macros Shift at Nearby Weights
Same male, cutting goal, moderately active activity. Your row is highlighted.
| Weight | Calories | Protein | Carbs | Fat | TDEE |
|---|---|---|---|---|---|
| 150 lbs | 2,078 | 128g | 261g | 58g | 2,442 |
| 160 lbs | 2,181 | 137g | 271g | 61g | 2,566 |
| 170 lbs | 2,288 | 145g | 283g | 64g | 2,689 |
| 180 lbs | 2,390 | 154g | 295g | 66g | 2,813 |
| 190 lbs | 2,501 | 163g | 307g | 69g | 2,941 |
Each 10 lb change shifts TDEE by roughly 125 calories at moderately active activity. Recalculate at your new weight after every 10-15 lb change.
Sample Day of Eating
A representative day hitting 2,288 calories, 145g protein, 283g carbs, 64g fat. Adjust portions to match your food preferences.
Breakfast
~686 cal
- 7 large eggs
- 3 cups dry oats
- 1 cup mixed berries
Lunch
~801 cal
- 164g chicken breast
- 2 cups cooked brown rice
- 2 cups mixed vegetables
- 1 tbsp olive oil
Dinner
~801 cal
- 203g salmon
- 4 medium sweet potatos
- 2 cups leafy greens
These are approximate servings. Exact macro hits require a food tracking app. Use this as a starting template and adjust portions to match your targets.
These numbers use an estimated 18% body fat.
FitCommit measures your actual lean mass with an AI body scan from your phone camera, so your macros reflect your real body composition.
3 Sample Meals Hitting These Macros
Each meal delivers roughly 763 calories, 48g protein, 94g carbs, and 21g fat, which is a third of your 2288 cal daily target.
High-Protein Greek Yogurt Bowl
Low-fat, high-protein breakfast that fills you up on a cutting deficit.
Ingredients
- 224g non-fat Greek yogurt (about 1 cups)
- 1 scoop (30g) whey protein isolate
- 627g fresh berries (about 6 cups)
- 188g oats
- 21g chia seeds
Instructions (5 min)
- Scoop Greek yogurt into a bowl.
- Stir in whey protein until smooth.
- Top with berries, oats, and chia seeds.
- Eat immediately or refrigerate up to 12 hours.
Grilled Chicken Rice Bowl
Lean protein, moderate carbs, minimal fat. The workhorse cutting meal.
Ingredients
- 155g skinless chicken breast
- 336g cooked jasmine rice (about 2 cups)
- 200g mixed salad greens
- 21g olive oil for dressing
- 1 tbsp lemon juice, salt, pepper to taste
Instructions (15 min)
- Season 155g chicken breast with salt, pepper, garlic powder.
- Grill or pan-sear 4-5 min per side until internal temp reaches 165F.
- Slice and layer over rice and greens.
- Drizzle olive oil and lemon juice over greens.
Lean Beef and Sweet Potato
Red meat for iron and creatine, sweet potato for slow-release carbs.
Ingredients
- 185g extra-lean (95/5) ground beef
- 470g sweet potato (about 1 medium)
- 150g steamed broccoli
- 11g avocado (optional)
- Salt, pepper, paprika to taste
Instructions (25 min)
- Preheat oven to 200C (400F). Pierce sweet potato, bake 20 min.
- While baking, brown beef in a dry skillet over medium-high heat, 6-8 min.
- Steam broccoli 4-5 min until bright green.
- Plate beef, sweet potato, and broccoli. Season to taste.
How to Hit These Macros Daily
Buy a digital food scale
A food scale eliminates the single biggest source of calorie miscalculation: eyeballed portions. A $15 scale pays for itself the first week by surfacing hidden 200 to 400 cal overshoots. Required for hitting 2288 cal precisely.
Plan 3 meals that total 2288 calories
Divide daily calories evenly: roughly 763 cal per meal for a 170 lb man. Each meal targets about 48g protein, 94g carbs, and 21g fat.
Hit 145g protein first
Protein is the lock, carbs and fat are the flex. 145g across 3 meals is 48g each. Pick one anchor protein source per meal (chicken, beef, fish, Greek yogurt, eggs) and portion it before adding anything else. If you fall short on calories by bedtime, top up with carbs or fat, not extra protein.
Split carbs and fat around training
Put 71g of your 283g carbs in the meal 1-2 hours pre-workout and 85g in the post-workout meal. Spread fat evenly across remaining meals. Carb timing matters for training quality on a deficit.
Track every input for 14 days
Log every meal, snack, drink, and cooking oil for 14 days using any tracking app. No eyeballing. The calibration period surfaces blind spots: dressings, condiments, weekend drift. After 14 days, tracking becomes automatic.
Adjust by 100 cal weekly based on the scale trend
Step on the scale 5 mornings a week, average the readings. Compare to last week. If weight has not dropped in 2 weeks, cut 100 cal from carbs. Going faster than 1.5 lbs/week? Add 100 cal. Never adjust on a single day's reading.
What This Looks Like In Practice
Meal timing and structure
On a cut, eat 3 to 4 meals with 48g to 36g of protein each. Space them 4 to 5 hours apart to keep hunger manageable. Front-load your day with protein and fiber at breakfast (eggs, Greek yogurt, berries) to stabilize blood sugar and reduce afternoon cravings. A 170 lb man cutting at 2288 cal has limited room for mistakes, so skipping meals and overeating later is the most common failure mode. Keep a 30g protein snack available for evenings.
Training day nutrition
Time carbs around training for a 170 lb man on 2288 cal. Of your 283g daily carbs, put 71g in a meal 1 to 2 hours pre-workout (rice, oats, or a piece of fruit) and 85g in the meal within 2 hours after. This preserves training quality on a 401-cal deficit and replenishes muscle glycogen when it matters. The remaining 127g spread across other meals. Protein post-workout is less time-sensitive than the industry suggests: a 30g to 40g feeding (of your 145g daily target) within 4 hours of training is the window.
Common pitfalls to avoid
Three pitfalls kill most cuts. First, underreporting food intake: cooking oils, dressings, and "tastes while cooking" commonly add 200 to 400 uncounted calories a day, which can wipe out the entire deficit. Weigh food for 2 weeks to calibrate. Second, overestimating activity: a moderately active rating (1.55x) assumes moderate exercise 3-5 days per week, not a gym session 3 times a week. Third, weekend blowouts: two 1,500-cal social meals can cancel 5 days of 2288-cal adherence for a 170 lb man. Track weekends the same as weekdays.
Frequently Asked Questions
How do I split 145g of protein across meals?
Across 3 meals, each meal needs about 48g of protein. Across 5 meals or snacks, each needs about 29g. Research shows protein synthesis is maximized with 30-40g per meal for most people. 48g per meal in 3 meals is within the optimal 30-40g range.
What are 283g of carbs used for in a cutting diet?
The 283g of carbs provides 1132 calories for workouts and brain function. Carbohydrates replenish muscle glycogen after training, supporting performance and recovery. On a cut, carbs fill the remaining calories after protein and fat. At 283g, this is a moderate-carb cut, not a low-carb diet.
Should I recalculate my macros as I lose weight?
Yes. Recalculate every 10-15 lbs of weight loss. As your weight changes, lean mass, BMR, and TDEE all shift. For a 170 lb man cutting to 155 lbs, the TDEE shifts by roughly 187 calories and macros should be recalculated.
What foods hit 145g protein, 64g fat, and 283g carbs?
Protein sources for 145g: roughly 5 x 100g portions of chicken breast (31g protein each), or 24 eggs (6g each), combined with Greek yogurt or protein powder. Fat sources for 64g: about 5 tablespoons of olive oil or peanut butter. Carb sources for 283g: roughly 6 cups of cooked rice (45g each) or 10 cups of oats (27g each). A food tracking app is the most accurate way to hit these targets.
How does my activity level affect my 2288 calorie target?
Your Moderately Active activity level uses a multiplier of 1.55, giving a TDEE of 2689 calories. If you were sedentary (1.2x), your TDEE would be approximately 2082 calories. If you were very active (1.725x), it would be approximately 2993 calories. The activity multiplier is the single biggest variable in your calorie target. Getting it right matters more than small differences in the macro split.
What should I do if I'm not losing weight at 2288 calories?
After 2 weeks with no movement, your actual TDEE likely differs from the estimate. Try reducing by 100-150 calories first. If energy drops significantly, check your protein intake before cutting calories further. Common issue: overestimating activity level.
When to Recalculate These Macros
Not losing weight after 2 consistent weeks
Reduce by 100-150 cal/day, pulling from carbs first. Your actual TDEE may be slightly below the 1.55x estimate. Confirm tracking accuracy before cutting further.
Losing more than 1.5 lbs per week
Add 100-200 cal/day from carbs. At 170 lbs, faster loss increases muscle loss risk and energy crashes. The target rate is 0.5-1 lb per week on a cut.
Lost 10 or more lbs from this starting weight
Recalculate at your new weight. BMR and TDEE drop as you lose mass. Eating the macros for 170 lbs when you weigh less will slow progress.
Other Weights and Goals
Same Weight and Activity, Different Deficit Level
Same Weight and Goal, Different Activity Levels
Sedentary
170 lbs, male, cutting
Lightly Active
170 lbs, male, cutting
Moderately Active
170 lbs, male, cutting
Very Active
170 lbs, male, cutting
Extra Active
170 lbs, male, cutting
References
Primary sources behind the protein, fat, and calorie targets on this page. Reviewed by Andrew Menechian, Head of Fitness, FitCommit.
- Phillips SM, Van Loon LJ. Dietary protein for athletes: from requirements to optimum adaptation. J Sports Sci. 2011.Protein targets for lean mass retention during cuts (2.3-2.6g/kg LBM).
- Helms ER, Aragon AA, Fitschen PJ. Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation. J Int Soc Sports Nutr. 2014.Cutting deficits, protein intake, and fat minimums for hormone protection.
- Aragon AA, et al. International Society of Sports Nutrition position stand: diets and body composition. J Int Soc Sports Nutr. 2017.ISSN position on macro distribution for body-composition goals.
- Morton RW, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 2018.Evidence ceiling on protein intake for muscle gain (~1.6g/kg body weight).
- National Institutes of Health, Office of Dietary Supplements. Protein and Amino Acids (Dietary Reference Intakes).Baseline RDAs for protein, carbohydrate, and fat across adult populations.
Get Your Exact Macros with FitCommit
These numbers use average body fat estimates. FitCommit's AI body scan measures your actual lean mass from your phone camera.
Precise lean mass = precise TDEE = macros that actually match your body, not an average.
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