Protein Intake for Maintenance at 140 kg — Daily Target
For an adult weighing 140 kg, the 1.2–1.6 g/kg range gives 168–224 g of protein per day, with a practical middle target of around 196 g. The recommended dietary allowance (RDA) of 0.8 g/kg would be 112 g — enough to avoid deficiency in a healthy adult, but not the amount that maintains muscle, supports training recovery, or keeps you full through the day at a higher body weight.
This page works the numbers out in full for this exact case — 140 kg — using the published grams-per-kilo ranges, so you can see where the target comes from instead of taking a single number on trust. Every figure here is an estimate for a healthy adult. Protein needs change with training, body composition and health, and the single most important exception is kidney disease, which changes the answer completely and needs individual medical advice rather than any online figure.
Use the protein calculator
Work out your own numbers with our protein calculator or the daily protein needs calculator — enter your weight, goal and activity level and it applies the same ranges used on this page. The tables below show the worked example for 140 kg, so you can check the calculator's output against the maths by hand.
Related reading: protein calculator, daily protein needs calculator, protein for maintenance at 80 kg. You can also browse the full protein section or check your overall split with the macro calculator.
The formula, shown and cited
There is no single protein formula the way there is a single BMI formula. Instead, the evidence gives us a set of ranges in grams of protein per kilogram of body weight per day, and the target is:
Daily protein (g) = body weight (kg) × grams per kilo (g/kg)
The ranges come from two sources. The RDA of 0.8 g/kg per day is the intake set to meet the needs of nearly all healthy adults — a floor, not an optimum. The sports-nutrition evidence, most clearly the meta-analysis by Morton et al. (2018) in the British Journal of Sports Medicine, which pooled 49 studies, found that muscle gains from resistance training maximise at around 1.6 g/kg per day, with intakes above that adding little for most people. Between those poles sit the practical ranges used on this page: 0.8 g/kg for sedentary maintenance, 1.0–1.2 g/kg for older adults preserving muscle, 1.2–1.6 g/kg for active maintenance, and 1.6–2.2 g/kg for people lifting weights or dieting.
For this page, the worked example is:
140 kg × 1.2 g/kg = 168 g per day (bottom of the range)
140 kg × 1.6 g/kg = 224 g per day (top of the range)
140 kg × 0.8 g/kg = 112 g per day (the RDA floor, for comparison)
That is the whole calculation — no hidden steps, no black box. What matters is choosing the right range for your goal and activity, which is what the next section does.
Your daily target at every body weight
The table below applies the same ranges at body weights from 50 kg to 140 kg, so you can see how the target moves if your weight changes. Find your weight, read across to the column that matches your goal, and you have your range.
| Body weight | At 0.8 g/kg (RDA) | At 1.2 g/kg | At 1.6 g/kg | At 2.0 g/kg | At 2.2 g/kg |
|---|---|---|---|---|---|
| 50 kg | 40 g | 60 g | 80 g | 100 g | 110 g |
| 60 kg | 48 g | 72 g | 96 g | 120 g | 132 g |
| 70 kg | 56 g | 84 g | 112 g | 140 g | 154 g |
| 80 kg | 64 g | 96 g | 128 g | 160 g | 176 g |
| 90 kg | 72 g | 108 g | 144 g | 180 g | 198 g |
| 100 kg | 80 g | 120 g | 160 g | 200 g | 220 g |
| 120 kg | 96 g | 144 g | 192 g | 240 g | 264 g |
| 140 kg | 112 g | 168 g | 224 g | 280 g | 308 g |
Two things stand out in that table. First, the gap between the RDA column and the training columns is large — roughly double — which is why "how much protein?" has no single answer without knowing what you do. Second, the gap between 1.6 and 2.2 g/kg is much smaller in practical terms than the gap between 0.8 and 1.6 g/kg: going from sedentary to active changes the answer far more than fine-tuning within the athletic range.
Splitting protein across the day
A daily total is only half the job. Muscle protein synthesis — the process of building and repairing muscle — responds to each meal separately, and research suggests a per-meal dose of around 0.3 g/kg is enough to maximise the response in younger adults, rising to around 0.35–0.4 g/kg in older adults whose muscles respond less strongly to a given dose. For this page that means roughly 42–56 g of protein per meal.
Spread across four meals, the middle target of 196 g looks like this:
| Meal | Protein |
|---|---|
| Breakfast | 49 g g |
| Lunch | 49 g g |
| Dinner | 49 g g |
| Snack or fourth meal | 49 g g |
| Daily total | about 196 g |
In practice, hitting the per-meal dose matters more than hitting the split exactly. Three meals of 49 g g will do more for muscle than one 80 g dinner and two protein-free meals, even if the daily total is identical. The easiest way to get there is to anchor every meal with one clear protein food — eggs, yoghurt, meat, fish, tofu, beans — rather than treating protein as something that only happens at dinner.
What 196 g of protein looks like as food
| Food (typical serving) | Protein |
|---|---|
| Chicken breast, 150 g cooked | 46 g |
| Salmon fillet, 150 g | 33 g |
| Greek yoghurt, 200 g | 20 g |
| Eggs, 3 large | 18 g |
| Cottage cheese, 200 g | 22 g |
| Tofu, 200 g | 16 g |
| Lentils, 1 cup cooked | 18 g |
| Tinned tuna, 1 tin (145 g) | 25 g |
| Milk, 500 ml | 17 g |
| Whey protein, 1 scoop (30 g) | 24 g |
A day built from those foods reaches the target without heroics: eggs and Greek yoghurt at breakfast, chicken or lentils at lunch, fish or tofu at dinner, and a yoghurt or cottage-cheese snack. Protein powder is a convenience, not a requirement — one scoop is 24 g, useful on rushed days or around training, but it builds no more muscle than the same grams from food. If you eat a plant-based diet, combine sources across the day (beans with grains, tofu with vegetables) and aim for the top of your range, since plant proteins are slightly lower in leucine, the amino acid that triggers muscle building. Soy is the exception: it is a complete protein on its own.
What changes at a higher body weight
At 140 kg, the maths is straightforward but the interpretation needs care. The published ranges are built on total body weight, and they work well for people of average build. At a higher body weight, a larger share of body mass is fat tissue, which needs far less protein than muscle — so a straight 140 kg multiplication can overshoot what the body actually uses. That is why this page gives two anchors: the total-weight figure (168–224 g at 1.2–1.6 g/kg) and the practical bracket many practitioners use at this weight (140–180 g, roughly what the same range gives at 100–115 kg of lean-adjusted weight). If you carry a lot of muscle at 140 kg — a heavy lifter, a strongman-style athlete — the higher end is the honest target. If you are 140 kg and working on weight loss, the lower end, or a figure based on your target weight, is usually more sensible. Either way, the number is a starting estimate: hold it for three to four weeks, watch training performance, recovery and body weight, then adjust by 10–20 g at a time rather than chasing a perfect figure on paper.
What this number does NOT tell you
A grams-per-kilo target is an estimate built on population averages, and it has real limits. First, it uses total body weight, which overstates needs for people carrying a lot of body fat and understates them for very lean, heavily muscled people — at the extremes, a figure based on lean mass or target weight is more honest. Second, it says nothing about protein quality: 100 g of protein from varied whole foods, with enough leucine at each meal, is not the same as 100 g from a single poor-quality source. Third, it assumes your calories are adequate — in a large calorie deficit, protein needs rise (towards 1.6–2.2 g/kg) because the body is more likely to break down muscle, and in a surplus they matter slightly less. Fourth, it is not a medical recommendation: kidney disease, liver disease and some metabolic conditions change protein advice entirely, and no online range replaces individual advice from a clinician or dietitian. Finally, a protein target is not a diet: hitting 196 g a day does not by itself build muscle, lose fat or improve health — training, sleep, total calories and overall food quality do that, and protein supports them.
Frequently asked questions
Is 140 kg too heavy for the standard grams-per-kilo rule?
The rule still works as a starting point, but at 140 kg it is worth knowing its limit: the 1.2–1.6 g/kg maintenance range is built on total body weight, and fat tissue needs far less protein than muscle. That is why this page gives both the straight total-weight figure (168–224 g per day) and the practical bracket many practitioners use at higher body weights (140–180 g). If you carry a lot of muscle at 140 kg, the higher end fits; if you are carrying a lot of body fat and are working on weight loss, the lower end — or a figure based on your target weight — is usually the more sensible anchor. Either way, treat the number as an estimate and adjust by how your training, recovery and body weight respond over several weeks.
How much protein should I eat at 140 kg to maintain weight?
Using the 1.2–1.6 g/kg maintenance range, 140 kg works out at 168–224 g of protein per day. A practical middle target is around 190 g, split across four meals of roughly 45–50 g each. If that amount is hard to reach with food alone, build each meal around one palm-and-a-half-sized portion of a protein-rich food — meat, fish, eggs, dairy, tofu or legumes — and use a shake only to fill the gap. There is no benefit in forcing the top of the range if you already train consistently and recover well at the middle of it.
Should I use my current weight or my target weight?
For maintenance at a stable weight, current weight is the right input. The target-weight shortcut is mainly useful during weight loss, where total-weight maths can overshoot: someone aiming for 110 kg might base protein on 110–120 kg instead of 140 kg. During maintenance there is no target weight to aim at, so use 140 kg, and revisit the figure if your weight drifts up or down by more than about 5 kg for several weeks.
Can I eat 200 g of protein a day safely?
For a healthy adult, intakes in the 1.2–2.2 g/kg range are widely used in training and nutrition practice and are not the same as the very high intakes sometimes warned about. The important exception is kidney disease: if you have reduced kidney function, or any kidney condition, protein needs change completely and you should follow a clinician's or renal dietitian's advice rather than any online calculator. The same applies if you have liver disease or a condition that affects protein metabolism. Healthy kidneys handle the ranges on this page; damaged kidneys may not.
How do I split 168–224 g of protein across the day?
Split it into four roughly equal meals of 42–56 g each — for example breakfast 45 g, lunch 50 g, dinner 50 g and a final meal or snack of 45 g. Research on per-meal distribution (Morton et al., 2018) suggests around 0.3 g/kg per meal, roughly 42 g at 140 kg, is enough to maximise muscle protein synthesis at that meal, with little extra benefit above about 0.4 g/kg. Spreading protein evenly beats loading most of it into one big evening meal, and it is also easier on digestion.
What foods get me to 190 g of protein without a dozen shakes?
Whole foods do most of the work: 200 g of chicken breast is about 62 g of protein, 200 g of Greek yoghurt about 20 g, three eggs about 18 g, a tin of tuna about 25 g, 200 g of tofu about 16 g and a cup of lentils about 18 g. A day built from eggs and yoghurt at breakfast, chicken and lentils at lunch, fish at dinner and a cottage-cheese snack lands near 190 g with at most one shake. Shakes are a convenience tool, not a requirement, and they do not build muscle any better than the same grams from food.
Estimates only, not medical advice. Minimum safe intakes: 1,200 kcal/day women, 1,500 kcal/day men — consult a healthcare professional before a very-low-calorie diet.