Protein Intake for Men Age 65+ — Athlete
For a man age 65+ weighing 80 kg, the 1.6–2.0 g/kg range gives 128–160 g of protein per day, with a practical middle target of around 144 g. The recommended dietary allowance (RDA) of 0.8 g/kg would be 64 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 age 65+.
This page works the numbers out in full for this exact case — 80 kg, 175 cm, age 68 — 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 80 kg, 175 cm, age 68, 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:
80 kg × 1.6 g/kg = 128 g per day (bottom of the range)
80 kg × 2.0 g/kg = 160 g per day (top of the range)
80 kg × 0.8 g/kg = 64 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 28–32 g of protein per meal.
Spread across four meals, the middle target of 144 g looks like this:
| Meal | Protein |
|---|---|
| Breakfast | 36 g g |
| Lunch | 36 g g |
| Dinner | 36 g g |
| Snack or fourth meal | 36 g g |
| Daily total | about 144 g |
In practice, hitting the per-meal dose matters more than hitting the split exactly. Three meals of 36 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 144 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 age 65+
Athletes past 65 are the proof that the 'too old to build muscle' story is wrong: studies have found strength and muscle gains in people in their seventies and eighties who train with weights and eat enough protein. What changes at 65+ is the dose needed to get a response. Anabolic resistance is at its strongest, overnight muscle breakdown runs higher, and appetite is often lower — which is why this page pushes both the daily total (128–160 g) and the per-meal dose (about 32 g, four times a day, plus a bedtime serving). The bedtime dose is not a gimmick at this age: the overnight fast is the longest stretch without protein, and a slow protein such as cottage cheese or casein before bed has the best evidence of any timing strategy in older adults. The final point is about priorities: at 65+, protein supports training, and training supports independence. Neither works well alone.
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 144 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
How much protein does a male athlete age 65+ need?
At 1.6–2.0 g/kg, an 80 kg masters athlete needs 128–160 g of protein per day. After 65, anabolic resistance is at its strongest, so the evidence points to the upper half of that range for men who train hard — around 1.8–2.0 g/kg, or 144–160 g. This is not a young lifter's bulking number; it is the amount needed to hold on to muscle that the body is now trying to lose, and it only works alongside resistance training.
Why do protein needs rise with age if muscle is shrinking?
That is exactly why they rise. Ageing muscle becomes less sensitive to the signal that dietary protein sends, so a bigger dose is needed to produce the same muscle-building response. It is like turning up the volume because the hearing is worse. The same logic applies to training: the stimulus must be strong enough to register. Protein and resistance exercise are the two levers that still work well past 65, and they work best together.
How much protein per meal after 65?
Around 0.4 g/kg per meal — about 32 g at 80 kg — across four meals. At this age the per-meal threshold matters as much as the daily total: three meals of 20 g will not produce the same muscle response as three meals of 32 g, even though the daily totals differ. A bedtime protein dose (cottage cheese or casein, 30–40 g) is also well supported in older adults, because overnight muscle breakdown runs higher and the long overnight fast is the longest period without protein.
Is it safe for a 65+ athlete to eat 160 g of protein?
For a healthy older adult, yes — studies of protein intakes up to 2.0 g/kg in older people have not shown harm to healthy kidneys, and higher intakes are associated with better muscle and functional outcomes. The exception, as always, is kidney disease: if kidney function is reduced, protein must be individualised by a clinician. If you are over 65 and training, it is sensible to know your kidney blood results before settling at the top of the range.
What foods work best for older athletes?
Foods that are protein-dense and easy to eat: eggs, Greek yoghurt, cottage cheese, soft fish, minced meat, tofu and lentil soups. Chewing difficulty and low appetite are real barriers at this age, so soft, moist, flavourful protein foods beat dry chicken breast. Milk-based drinks, smoothies with yoghurt and a scoop of whey, and soups enriched with lentils or beans all raise protein without requiring big plates.
Does protein alone build muscle after 65?
No — and this is important. Protein provides the building material, but resistance training provides the signal to use it. Studies consistently find that protein without training does little for muscle in older adults, while protein plus training produces real gains in strength and size even in people in their seventies and eighties. If you only do one thing, train; protein makes the training work better.
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.