Macros for 140 lb Men (Maintenance, Very Active)
Reviewed by Andrew Menechian, Head of Fitness at FitCommit
Exact macros for a 140 lb man on a maintenance diet. Calculated from estimated lean mass, Katch-McArdle BMR, and a very active TDEE (hard exercise 6-7 days per week).
2,578
Calories
Maintenance calories
120g
Protein
480 cal (19%)
331g
Carbs
1324 cal (51%)
86g
Fat
774 cal (30%)
Eating at TDEE with zero deficit or surplus. These macros maintain your 140 lb body weight while optimizing protein for muscle retention.
How These Macros Were Calculated
| Body Weight | 140 lbs |
|---|---|
| Estimated Lean Mass | 115 lbs (82% of body weight) |
| Lean Mass (kg) | 52.1 kg |
| BMR (Katch-McArdle) | 1,495 cal/day |
| TDEE (BMR x 1.725) | 2,579 cal/day |
| Target Calories | 2,578 cal/day |
| Calorie Change | None (maintenance) |
| Expected Weekly Change | Stable weight |
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 1.725 = hard exercise 6-7 days per week.
Macro Breakdown
| Macro | Grams | Calories | % of Total |
|---|---|---|---|
| Protein | 120g | 480 | 19% |
| Carbohydrates | 331g | 1324 | 51% |
| Fat | 86g | 774 | 30% |
| Total | - | 2,578 | 100% |
Protein is set at 2.3g per kg of lean body mass (115 lbs lean mass for this man). Fat targets 30% of target calories with a minimum safety floor applied if needed; carbs fill remaining calories, with a 50g minimum for brain function.
Meal Split Examples
3 Meals Per Day
- Per-meal calories859 cal
- Per-meal protein40g
- Per-meal carbs110g
- Per-meal fat29g
4 Meals Per Day
- Per-meal calories645 cal
- Per-meal protein30g
- Per-meal carbs83g
- Per-meal fat22g
5 Meals Per Day
- Per-meal calories516 cal
- Per-meal protein24g
- Per-meal carbs66g
- Per-meal fat17g
Research shows muscle protein synthesis is maximized with 30-40g protein per meal. 40g per meal in 3 meals is within the optimal range.
What These Macros Look Like in Food
Protein: 120g
- 5 scoops protein powder (22-25g each)
- 4 x 100g chicken breast (31g each)
- 5 x 100g lean ground beef (26g each)
- 20 large eggs (6g each)
Carbs: 331g
- 7 cups cooked white rice (45g each)
- 12 medium bananas (27g each)
- 6 cups dry oats (54g each)
- 47 rice cakes (7g each)
Fat: 86g
- 6 tbsp olive oil (14g each)
- 10 tbsp almond butter (9g fat each)
- 5 oz walnuts (18g each)
- 6 tbsp coconut oil (14g each)
These are rough equivalents. Most meals contain a mix of all three macros. Use a food tracking app for precise logging.
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.
Frequently Asked Questions
What are 331g of carbs used for in a maintenance diet?
The 331g of carbs provides 1324 calories for workouts and brain function. Carbohydrates replenish muscle glycogen after training, supporting performance and recovery. At maintenance, 331g of carbs fuels daily activity at a sustainable level without gain or loss.
Should I recalculate my macros as I track weight?
At maintenance, recalculate your TDEE every 4-8 weeks if your weight shifts more than 5 lbs consistently. Lean mass changes affect calorie needs.
What foods hit 120g protein, 86g fat, and 331g carbs?
Protein sources for 120g: roughly 4 x 100g portions of chicken breast (31g protein each), or 20 eggs (6g each), combined with Greek yogurt or protein powder. Fat sources for 86g: about 6 tablespoons of olive oil or peanut butter. Carb sources for 331g: roughly 7 cups of cooked rice (45g each) or 12 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 2578 calorie target?
Your Very Active activity level uses a multiplier of 1.725, giving a TDEE of 2579 calories. If you were sedentary (1.2x), your TDEE would be approximately 1794 calories. If you were very active (1.725x), it would be approximately 2579 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.
When to Recalculate These Macros
Weight trending upward over 2 weeks
Reduce by 100-150 cal/day from carbs. Your actual TDEE is slightly below the 1.725x estimate for very active activity.
Weight trending downward over 2 weeks
Add 100-150 cal/day from carbs or fat. You may be more active than the multiplier accounts for, or your metabolism has adapted upward.
Activity level has changed significantly
Switch to the matching activity level using the selector above. The difference between sedentary and moderately active can be 300-500 cal/day at 140 lbs.
Other Weights and Goals
Same Weight and Goal, Different Activity Levels
Related Resources
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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