Need to Know:
Macro requirements change with weight loss change as your total daily energy expenditure (TDEE) adjusts.
When making adjustments, prioritize protein during weight loss to maintain muscle. Experts advise consuming 1.2–1.6 grams of protein per kilogram of body weight per day.
Macronutrient ratios (percentages) don’t need to change with weight loss unless your goals change.
When you use the macro diet for weight loss, you eventually reach a point where you've lost enough weight to adjust your macros. This commonly happens after losing 10 pounds. Learn the simple step-by-step method to recalculate your macros after losing weight to continue to reach new goals and maintain your overall health and wellness.
Why Your Macros Need to Change After Losing 10 Pounds
Your body needs energy (in the form of calories) to maintain basic functions like breathing, circulation, and digestion. The total number of calories you burn each day is called your total daily energy expenditure (TDEE). In Macro Diet for Dummies, you learn everything you need to know about TDEE and how it changes throughout your life.
When you lose weight, several things can affect your TDEE:
You have less body mass to maintain. A smaller body generally requires fewer calories.
Movement may burn fewer calories. Walking or exercising at a lighter weight can require less energy.
Your body may adapt to weight loss. Changes in energy expenditure beyond those explained by body size can occur during weight loss.
Your activity level may change. You might move more because you feel better, or move less because you're tired from dieting.
According to the National Institutes of Health (NIH) Body Weight Planner, calorie requirements change as body weight and physical activity change.(1) If you don’t reassess your daily nutritional needs, you are likely to hit a plateau and see your weight loss progress stall.
If you are still losing weight and are satisfied with your progress, then you may not need to make any changes, but ask yourself a few questions to see if adjustments are warranted.
How to Know If You Should Adjust Macros After Weight Loss: 3 Key Questions
There are a few key indicators that you should recalculate your macros. Ask yourself these questions to see if you need to make changes.
1. Has Your Weight Loss Stalled?
If your body weight keeps decreasing, you may not need to change anything. But what happens when you hit a plateau?
A few days without weight loss doesn't mean a lot. There are dozens of reasons for weight fluctuations (or lack thereof) that have nothing to do with your macro intake. For instance, your weight naturally changes from day to day because of hydration, sodium intake, digestion, hormonal changes, and other factors.
But if your average weight hasn't changed for approximately 3–4 weeks despite consistent tracking, it may be time to reconsider your calorie intake or TDEE.
2. Are You Still Losing Fat?
In some situations, you may notice continued weight loss, but you find that you are losing more muscle than fat.
For example, suppose you started at 180 pounds and now weigh 170 pounds. Your goal weight is 160 pounds. You're still losing about half a pound of weight per week, so there is no good reason to change. Your calorie requirements may have decreased, but your current intake is still producing results.
However, if you are using a body fat scale and notice that you are losing more muscle than fat, you may need to adjust your macros to increase protein intake for muscle maintenance - even though your calorie intake doesn’t change.
3. How Do You Feel?
Your energy, hunger, workout performance, and recovery are important indicators of whether your current plan is sustainable.
If you're experiencing excessive fatigue, persistent hunger, or declining workout performance, continuing to cut calories might make things worse.
Sometimes maintaining your current intake—or taking a break from a calorie deficit—is a smarter approach than reducing your food intake further.
How to Adjust Macros After Losing 10 Pounds: Step-by-Step
There are a few different ways to recalculate your macros after losing weight. The easiest way is to simply use the Daily Macros Calculator to get your numbers instantly. But you may prefer to do the math on your own. Use these five steps to re-evaluate and re-adjust your macros.
Step 1: Calculate Your New Calorie Target
You should know the number of calories you consume to maintain your current body weight. For example, if your weight has been stable for several weeks and you currently consume about 1800 calories per day, then 1800 is your “maintenance calorie” number. To keep losing weight, you’ll need to decrease this number. The adjusted number is your new calorie target.
There are different ways to get your new target calorie number:
You can use the NIDDK Body Weight Planner with your new weight to get your new number quickly and easily.
You can recalculate the number by hand based on your new body weight. Some experts, like those at Harvard Health, suggest that it takes about 15 calories per pound to maintain your weight, assuming that you get about 30 minutes of moderate activity each day.(3) Based on this approach, if you weigh 150 pounds, your maintenance calories would be approximately 2250 per day. For weight loss, you need to decrease your maintenance calories by up to 500 calories per day to get your calorie target.
Keep in mind that you should adjust your calorie needs up or down based on your activity level. If you are sedentary, you need fewer calories. If you are active, you need more calories. During weight loss, it is strongly advised that you stay physically active.
*If you want your macro ratios to stay the same, simply multiply each macro ratio by your new calorie target. Macro ratios are the percentages assigned to each nutrient.
For example, if your new calorie goal is 1800 calories per day, and you follow a 40/30/30 plan (40% carbs, 30% fat, 30% protein), multiply your old ratios by your new calorie target.
40% (carbs) x 1800 (calories) = 720 calories per day from carbs
30% (fat) x 1800 calories = 540 calories per day from fat
30% (protein) x 1800(calories) = 540 calories per day from protein
Skip to Step #4 to determine the grams of each macronutrient to consume each day.
Step 2: Reevaluate Your Protein Target
Protein deserves special attention during weight loss because it helps preserve lean muscle mass and supports fullness. If your body fat scale shows your body fat percentage increasing (or staying the same) even as your body weight drops, you may be losing muscle, not fat. Re-evaluate your protein intake to help maintain a strong, lean body.
The International Society of Sports Nutrition's 2026 position stand suggests that you need approximately 1.2–1.6 grams of protein per kilogram of body weight per day (g/kg/day) while losing weight. If you are participating in resistance training, you may need more.(2)
For a person weighing 170 pounds (approximately 77 kilograms), that translates to:
General weight-loss range: approximately 92–123 grams daily
Resistance-training range of 1.6–2.2 g/kg/day: approximately 123–170 grams daily
Remember that each gram of protein provides four (4) calories. Multiply your new protein targets by four to determine how many calories to allocate to protein.
General weight-loss range: approximately 92–123 grams daily or 368 to 492 calories from protein
Resistance-training range of 1.6–2.2 g/kg/day: approximately 123–170 grams daily or 492 to 680 calories from protein.
Your ideal target depends on your training, body composition, health, and preferences. You don’t want to make drastic changes to your diet, so if you choose to increase your protein intake, do so gradually.
Step 3: Adjust Carbohydrates and Fats
Once you've established your protein target, subtract those calories from your adjusted TDEE (total calories per day). For example, if your TDEE is 1800 and you’ve decided to consume 1.2 g/kg/day of protein (368 calories), then you would subtract 368 from 1800 and have 1432 calories remaining to consume in carbohydrates and fat.
So now you can divide your remaining calories between carbohydrates and fats. You don't have to reduce carbohydrates and fats equally. Choose an adjustment that fits your eating preferences, supports your workouts, and leaves room for nutritious foods. But keep in mind that experts suggest consuming at least 45% of your calories from carbohydrates and at least 20% of your calories from fat.
You might divide the calories like this:
Protein: 368 calories or about 20% of your total daily calorie intake
Carbohydrates: 1080 calories or about 60% of your total daily calorie intake
Fat: 360 calories or about 20% of your total daily calorie intake
Step 4: Calculate Your New Macro Targets in Grams
Many people prefer to track their macros using targets in grams, rather than calories. So you’ll simply turn each calorie-based macro target into a gram-based target.
Remember:
Protein provides 4 calories per gram
Carbohydrates provide 4 calories per gram
Fats provide 9 calories per gram
Let's put everything together using a realistic example.
Let’s say that your new calorie target is 1800 calories, and you want 368 of those calories to come from protein. You’ve decided to allocate most of the remaining calories (1432) to carbohydrates, with some left for healthy fat. In the previous example, we determined:
Protein: 368 calories or about 20% of your total daily calorie intake
Carbohydrates: 1080 calories or about 60% of your total daily calorie intake
Fat: 360 calories or about 20% of your total daily calorie intake
Now turn calories into grams:
Protein: 368 calories divided by 4 (calories per gram of protein) = 92 grams of protein per day
Carbohydrates: 1080 calories divided by 4 (calories per gram of carbs) = 270 grams of carbohydrate per day
Fat: 360 calories divided by 9 (calories per gram of fat) = 40 grams of fat per day
Step 5: Monitor Your Progress Before Making Another Change
After adjusting your macros, give your body enough time to respond. Track your intake consistently and monitor your average weight for approximately 2–4 weeks.
Also pay attention to:
Changes in waist measurements or clothing fit
Hunger and fullness
Energy throughout the day
Strength and workout recovery
How sustainable your eating plan feels
If your weight loss journey resumes and you feel good, continue with your new adjusted targets. If nothing changes, revisit your tracking accuracy, activity level, and calorie estimates before cutting more calories.
How Much Should Your Macros Change After Losing Weight?
If your general goals stay the same, then your macro ratios don’t need to change. For instance, if you reach your desired body weight and your intention is to maintain your body weight and body composition, then your macro ratios (percentages) don’t need to be recalculated.
However, you might set a new goal. For example, after losing ten pounds, you might set a new goal to maintain your weight but change your body composition. You might try cycles of bulking (adding muscle) and cutting (losing fat). In that case, your macro ratios would need to shift to favor protein in order to build muscle (hypertrophy).
But what happens when you have not yet met your goal? This is when adjustments make sense. For someone whose weight loss has genuinely stalled, a modest adjustment of approximately 100–200 calories per day can be a reasonable starting point.
But this is a practical adjustment range, not a requirement or a guaranteed solution. Your decision should depend on your current intake, weight-loss rate, activity level, and how you're feeling.
Common Mistakes to Avoid When Adjusting Macros
Cutting calories too aggressively: It's tempting to reduce calories significantly when weight loss slows. But a larger deficit isn't always better. Excessive restriction can increase hunger, lead to binge eating, make workouts harder, and raise the risk of losing lean muscle. A moderate, sustainable approach is always a smarter approach.
Lowering protein along with everything else: When calories decrease, protein shouldn't automatically decrease. Keeping protein adequate is particularly important if you're strength training or trying to preserve muscle during weight loss.
Changing macros every week: Weight loss rarely happens in a perfectly straight line. Changing your targets every time the scale fluctuates makes it difficult to determine what's actually working. Look for meaningful trends rather than reacting to daily changes.
Ignoring tracking accuracy: Before assuming you need fewer calories, check whether your recorded intake reflects what you're actually eating. Cooking oils, dressings, beverages, snacks, and inaccurate portion sizes can make a difference. For homemade meals, accurate ingredient measurements and recipe calculations are especially helpful. If you frequently cook at home, read our guide to how to track macros in homemade meals.
Sources:
U.S. Department of Health and Human Services. National Institute of Diabetes and Digestive and Kidney Diseases. Body Weight Planner.
Aragon AA, Campbell BI, Schoenfeld BJ, Stout JR, Kalman D, Arciero PJ, Arent SM, Kreider RB, Taylor LW, Bannock L, Wildman REC, Kerksick CM, Antonio J. International Society of Sports Nutrition position stand: diets for body weight reduction. J Int Soc Sports Nutr. 2026 Dec 30;23(1):2740266. doi: 10.1080/15502783.2026.2740266
Harvard Health Publishing. Calorie Counting Made Easy