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Wondering if you are eating enough protein? A 190 lb man holding at maintenance training 5 or more days per week needs about 177 grams of protein per day, split across 4 meals of about 44g each. That number is anchored to lean mass, not total body weight.
Where this sits: Your 177 g/day target is at the top of the ACSM athlete band (103-172 g). The USDA RDA for an untrained 190-lb adult is just 69 g (NIH ODS); the ACSM/ISSN athlete recommendation is 1.2-2.0 g/kg body weight (Jäger et al, ISSN 2017).
Lean mass: 156 lbs (70.7 kg). BMR: 1897 kcal (Katch-McArdle). Activity: hard exercise 6-7 days per week.
Protein demand for trained individuals sits on a sliding scale from 2.3 to 3.1 g/kg of lean body mass, not a single fixed number. Where you land on the band depends on your goal and training status. Cutting shifts the whole band up because protein protects lean mass under a deficit. Harder training pushes the number further up because more muscle protein synthesis and repair is happening.
Your position on the scale
Maintenance, very active: 2.5 g/kg LBM
Applied to 70.7 kg of lean mass: 2.5 × 70.7 = 177 g/day
The scale is anchored to the ISSN 2017 position stand (Jäger et al) and the Morton 2018 meta-analysis of 49 resistance-training studies (PMC5852756). Both identify diminishing returns above roughly 3.1 g/kg lean mass for most trained populations, and reductions to safety floors near 2.3 g/kg for maintenance in untrained adults. Reviewed by Andrew Menechian, Head of Fitness at FitCommit.
| Schedule | Protein per meal |
|---|---|
| 3 meals per day | 59g |
| 4 meals per day | 44g |
| 5 meals per day | 35g |
At 190 lb, the protein math starts to show the absolute numbers that intimidate newer trainees. A 190 lb moderately active male cutting lands near 175 grams of protein per day. That is a lot of chicken breasts.
The answer is not more chicken. It is food variety. Eggs, Greek yogurt, cottage cheese, whey in smoothies, lean beef, canned tuna, and a single quality protein shake per day make 175 grams reachable without cooking resentment. The lean-protein-source palette matters more at this weight than at any lighter weight.
Andrew sees the pattern of "I cannot eat that much protein" collapse quickly once users track for a week. The stomach adapts within five to seven days. The first three days feel like a lot; by day seven it feels normal. If you bounce off the number in week one, keep going. The physiology catches up with the plan.
Maintenance is the phase most people think is the boring one. It is actually the one that determines whether any of your other phases stick.
Maintenance means calories match TDEE and body comp drifts quietly toward whatever your protein, training, and sleep habits are pointing at. If your habits are solid, you get leaner over months without trying. If they are shaky, you get softer the same way. The phase reveals what your underlying routine actually does when it is not being forced one direction by a deficit or a surplus.
We use a protein target inside the 2.3 to 2.5 g/kg lean-mass band, similar to the bulking range, because the muscle-preservation case does not disappear when calories stop moving. Fat stays at 30% of calories, carbs fill the rest. You have the most flexibility here. You can afford a weekend restaurant meal, a high-carb training day, a low-carb travel day, and the phase absorbs the variance.
The mistake Andrew sees most often during maintenance is people stop weighing their food because "I know what I eat." Two weeks later the protein is 40 grams under target because chicken breasts are bigger than they used to be, or the yogurt portion doubled. Recalibrate one week per quarter. Weigh everything for seven days. Adjust. That is the whole maintenance discipline.
The male version of the protein math starts from a higher average lean mass assumption. We use 18% body fat as the default for moderate training status, which means the lean-mass anchor for the protein calculation includes more muscle tissue than the equivalent female page. Your absolute protein number is higher because your lean mass is higher, not because male physiology asks for a different gram-per-kilogram ratio.
Testosterone's role in the muscle-protein-synthesis ceiling matters here. Higher natural testosterone supports a higher MPS rate per meal, which is why the classic "30g per meal" rule-of-thumb often fits male trainees comfortably at three to four meals a day. Schoenfeld and Aragon's 2018 review on per-meal distribution supports 0.4 g/kg body weight per meal as a functional ceiling, which for a 180 lb male lands near 32 grams per meal (Schoenfeld and Aragon, 2018, JISSN). We show you four-meal and five-meal splits so you can pick the pattern that fits your schedule without over-engineering a single mealtime.
Andrew watches male trainees under-eat protein more often than women do, especially at sedentary or moderate training levels. The assumption is "I'm not lifting heavy, I don't need it." The assumption is wrong. Lean mass preservation is not contingent on whether you had a gym session today.
Very active means 5 to 7 training sessions per week, competitive sport, endurance training, physically demanding work, or any combination that keeps the body under significant load most days. Activity multiplier is 1.725x BMR, and for some endurance athletes even that is conservative.
The protein number on a very-active page is larger in absolute grams because we push up the g/kg ratio itself: 3.1 g/kg lean mass for cutting, 2.7 for bulking, 2.5 for maintenance. That puts hard-training athletes at the upper end of the defensible 2.3 to 3.1 g/kg band. Going substantially higher than 3.1 does not produce more muscle in resistance-trained populations, per Morton's 2018 meta-analysis in BJSM. Endurance athletes in a large energy deficit can sit comfortably at the 3.1 ceiling, which aligns with Bandegan 2017's indicator amino acid work in endurance-trained men.
Andrew has seen more very-active trainees under-eat calories than under-eat protein. The training drives hunger, they reach for protein shakes and lean chicken, and their total calorie intake drifts 300 to 500 kcal below what their training demands. Energy availability tanks, recovery collapses, sleep fractures. The protein number looks fine on paper but the body cannot use it because there is not enough total fuel for basic recovery. If you are very active and running a cut, check your calorie number carefully before you chase protein. The calorie floor matters as much as the protein ceiling.
If you train twice a day or compete, talk to a performance dietitian in addition to using this calculator. Our numbers are a defensible starting point, not a prescription.
Maintenance is the phase most people skip and most programs ignore. It is also the phase where body composition quietly changes for the better or worse over the long run. Your job at maintenance is not to force progress, it is to defend it.
We use Andrew Menechian's framework. Calories match TDEE. Protein for maintenance sits on a sliding scale from 2.3 to 2.5 grams per kilogram of lean body mass, set by training status. Lower-volume maintainers anchor at 2.3; very-active maintainers push to 2.5. The specific number for your profile is shown in the result box above. Phillips and Van Loon's 2011 review in the Journal of Sports Sciences laid out the case that active adults benefit from protein intakes of 1.3 to 1.8 g/kg body weight across training years, which lines up with our LBM-anchored band for a typical lean trainee (Phillips and Van Loon, 2011, J Sports Sci). The ISSN 2017 position stand puts the range at 1.4 to 2.0 g/kg body weight for exercising individuals (Jäger et al, 2017, JISSN); we sit at the upper end because the cost of slightly too much protein is nothing and the cost of slightly too little is measurable in recovery quality.
Fat sits at 30% of calories, carbs fill the rest. This is the most forgiving macro distribution we give you. Maintenance is where the body can absorb day-to-day variance without breaking the plan. Miss a protein meal on a Saturday at a restaurant, catch it back the next day, and the phase continues. That flexibility is what makes maintenance sustainable for years.
The common mistake Andrew sees with users in maintenance is underestimating how much protein they actually eat. They log "one chicken breast" without weighing it and the entry is low by 50%, or they skip tracking on weekends and drift for two days. Two weeks of that and the scale moves down or stays flat while muscle quietly softens. The fix is simple: weigh protein sources for one week every quarter. Recalibrate. Continue.
Schoenfeld and Aragon's 2018 review on per-meal protein distribution is worth reading during maintenance specifically because meal timing becomes your lever when you are not driving change through calorie manipulation (Schoenfeld and Aragon, 2018, JISSN). Three solid meals spaced four to six hours apart with 30 to 50 grams of protein each is the low-friction version. Four meals is the version that shows up in better body comp over the long run.
Antonio's 2015 one-year crossover in trained males confirms that sustained high-protein intakes produce no adverse markers in healthy populations (Antonio et al, 2015, J Nutr Metab). The worry that maintenance-level protein inside the 2.3 to 2.5 g/kg lean-mass band is "too much" is a holdover from the 1989 RDA era and has not survived the research of the last two decades.
This is educational, not medical advice. If you have kidney disease, liver disease, are pregnant, or take medications affecting protein metabolism, talk to your doctor before changing your intake.
Hit your protein target without the guesswork.
Scan your meal, see the protein count, and close the gap with one tap.
A common frustration sounds like this: "I hit my protein number but the scale muscle readout keeps dropping." Usually the number is fine. The distribution is not. Spread the same daily total across three or four meals instead of backloading into dinner and a shake. Same grams, different signal, different outcome on lean mass retention during a cut.
MFP's protein calculator sits on their blog and exists partly to drive installs of the MyFitnessPal app. That is not a criticism; it is how every free calculator on a commercial site works. The relevant question is whether the calculator itself is useful regardless of whether you install their app.
MFP's calculator is fine for a quick estimate and reasonable for a sedentary-to-moderately-active adult. Where it falls short is specificity: it does not split recommendations by training status, does not account for lean-mass-based calculations, and does not walk you through per-meal distribution. The output is one number with minimal context.
Our calculator takes the opposite approach: specific inputs, explicit framework, named sources, full macro context. If you want a calculator that works without requiring an app install or a food log, this one is here. If you want to track your meals in an app, FitCommit is built specifically for photo-based logging with visible confidence scores, which is a different value proposition than MFP's database-lookup approach.
Reviewed by Andrew Menechian, Head of Fitness at FitCommit. Last updated 2026-05-02.
Target 2.3 to 2.7 grams of protein per kilogram of lean body mass per day during a bulk, scaled to training status. Morton's 2018 meta-analysis in the British Journal of Sports Medicine pooled 49 studies on protein supplementation and resistance training and found diminishing returns above roughly 1.6 g/kg total body weight, which maps to the bulking band we use (Morton et al, 2018, BJSM). The ISSN 2017 position stand puts the wider band at 1.4 to 2.0 g/kg body weight for exercising individuals (Jäger et al, 2017, JISSN). Going higher does not buy more muscle during a bulk. It buys grocery bills and stomach discomfort. Pair the protein number with a 10% calorie surplus and three or four hard training sessions per week.
Common gym advice says 1 gram per pound of body weight, which lands around 2.2 g/kg. That number is in the right ballpark for most lifters but it ignores body composition. A 200 lb man at 30% body fat does not need the same protein as a 200 lb man at 12% body fat. The leaner man has more muscle tissue to feed. FitCommit anchors on lean body mass, not scale weight, on a sliding scale from 2.3 to 3.1 g/kg LBM set by goal and training status. Cutting and harder training push the number up; maintenance and lower training volume sit at the floor. This matches ISSN 2017 guidance (Jäger et al, 2017, JISSN) and avoids overfeeding protein to people carrying more fat than muscle.
In healthy adults with no pre-existing kidney disease, there is no evidence that high protein intake harms kidney function. Antonio's 2015 one-year crossover study in trained men tested sustained intakes around 3.4 g/kg body weight and found no adverse changes in kidney, liver, or metabolic markers (Antonio et al, 2015, J Nutr Metab). The ISSN 2017 position stand reviewed the broader literature and reached the same conclusion for healthy populations (Jäger et al, 2017, JISSN). This is not medical advice. If you already have chronic kidney disease, diabetic kidney damage, or reduced GFR, high-protein diets require medical supervision. Talk to your doctor before raising your intake.
Aim for roughly 0.4 grams of protein per kilogram of body weight per meal, which lands between 30 and 50 grams for most people. Schoenfeld and Aragon's 2018 review in the Journal of the International Society of Sports Nutrition analyzed per-meal protein distribution and identified this as the practical ceiling for maximally stimulating muscle protein synthesis in a single sitting (Schoenfeld and Aragon, 2018, JISSN). Anything above that ceiling still gets used by the body, it just stops paying a hypertrophy dividend for that meal. Three to four meals per day at this dose is the low-friction structure. Backloading all your protein into dinner is the most common reason users hit their daily number but still lose lean mass.
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180 lbs male maintenance very active
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200 lbs male maintenance very active
Same weight, different goal
190 lbs male cutting very active
Same weight, different goal
190 lbs male bulking very active
Other gender, same goal
190 lbs female maintenance very active
Different training status
190 lbs male maintenance sedentary
Different training status
190 lbs male maintenance moderate
Carbs + fat breakdown
Uses baseline 2.6/2.3 protein (this page scales higher by training)