How much protein do you need after menopause?

Expert consensus for older adults is about 1.0 to 1.2 g of protein per kg of body weight a day — noticeably more than the standard 0.8 g/kg guideline — spread across meals at roughly 25 to 30 g each. That range supports muscle as ageing, and the drop in oestrogen around menopause, make muscle harder to maintain. It works best paired with resistance exercise, and ordinary foods can supply it.

Does protein build muscle on its own?

Only modestly. In a meta-analysis of 49 trials, extra protein clearly increased strength, muscle size and fat-free mass — but as an addition to resistance training, not instead of it. The big effect comes from the combination: eat enough quality protein and do progressive strength work. Protein alone does relatively little for muscle.

Do you need protein powder or whey to keep muscle?

No. The trials often used protein supplements to reach a target intake, but the target is total daily protein, which everyday foods deliver — dairy, eggs, legumes, soy, fish and lean meat are all leucine-rich, high-quality sources. A powder can be convenient, but it is not required, and we recommend no supplement or brand.

Home · The Evidence Index · Perimenopause · Muscle

How much protein do you need to keep muscle after menopause?

Verdict — Strong (with strength training)

Reviewed against the AntiAgingGreens evidence standard · Meta-analysis of 49 RCTs + expert consensus · Last reviewed July 2026

About 1.0 to 1.2 grams of protein per kilogram of body weight a day — more than the standard guideline — paired with strength training, is the best-evidenced way to hold onto muscle as you age through and past menopause. The pairing is the point: protein does most of its work alongside resistance exercise, not on its own.

You eat

~1.0–1.2 g/kg/day quality protein, ~25–30 g per meal

Plus

Progressive resistance (strength) training

In muscle

Leucine-rich protein + load trigger muscle protein synthesis

Result

Muscle strength and mass preserved or built

Muscle gets harder to build with age — so it takes both enough protein and the stimulus of resistance training. Either one alone does far less than the two together.

What the evidence supports

✓ Protein + resistance training increased strength, muscle size and fat-free mass across 49 RCTs¹
✓ ~1.0–1.2 g/kg/day for older adults (above the 0.8 g/kg guideline) — expert consensus
✓ Ordinary foods deliver it — dairy, eggs, legumes, soy, fish, lean meat

What it doesn't do

✗ Do much on its own — protein without strength work has only a modest effect
✗ Require whey or supplements — food covers the target
✗ Keep adding benefit without limit — gains plateau around 1.6 g/kg/day

Where this comes from

Not supported Emerging Moderate Strong

Why it works: Muscle is constantly built up and broken down, and eating protein — especially leucine-rich protein — tips the balance towards building. With age that signal weakens, a state called anabolic resistance, and the fall in oestrogen around menopause adds to the loss of muscle and strength. The practical answer is to push harder on both levers at once: a little more protein than younger adults need, and the mechanical stimulus of resistance training, which together restore the muscle-building signal.
What the human evidence shows: A confirmed meta-analysis of 49 randomised trials in 1,863 adults found that extra protein significantly increased strength, muscle size and fat-free mass — as an addition to resistance training — with the benefit levelling off at about 1.6 g/kg/day.¹ The effect was smaller in older adults but still present. On intake, international expert consensus (the PROT-AGE and ESPEN groups) recommends about 1.0 to 1.2 g/kg/day for older adults — above the 0.8 g/kg standard — to protect muscle, with leucine-rich protein and roughly 25 to 30 g per meal.
Where the evidence stops: Protein's effect on muscle is greatest with resistance training; on its own it does relatively little, so this is a two-part claim, not a licence to just eat more. The trials often used protein supplements to hit a target intake, but the target is total daily protein — which everyday foods supply — so we frame it as food, not whey. The evidence base is older and midlife adults rather than menopause-specific cohorts; it applies to postmenopausal women, but the studies weren't run in them exclusively. At the higher end, very high protein intakes need care in advanced kidney disease.

Why food, not a protein powder: the goal is a total daily amount of quality protein, and dairy, eggs, legumes, soy, fish and lean meat all reach it while bringing other nutrients with them. A powder can be a convenience, but it isn't a requirement and it isn't magic — we recommend no supplement or brand. And protein without the strength training is only half the plan: the two belong together.

At a glance

QuestionHow much protein to keep muscle after menopause?

Answer~1.0–1.2 g/kg/day (above the 0.8 guideline), ~25–30 g/meal, paired with strength training

Best sourcesDairy, eggs, legumes, soy, fish, lean meat — leucine-rich foods

Key caveatWorks with resistance exercise; protein alone has only a modest effect; benefit plateaus ~1.6 g/kg/day

PopulationOlder and midlife adults (applies to postmenopausal women; trials not menopause-specific)

Evidence typeMeta-analysis of 49 RCTs + international expert consensus

Last reviewedJuly 2026

Sources

A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine, 2018. bjsm.bmj.com

Intake targets from the PROT-AGE (Bauer et al., 2013) and ESPEN expert consensus on protein for older adults.

Bottom line for you

To hold onto muscle through and after menopause, aim for roughly 1.0 to 1.2 g of protein per kg of body weight a day — a bit more than you may have been told — spread across meals at 25 to 30 g, from foods like dairy, eggs, legumes, soy, fish and lean meat. Then do the part that makes protein count: progressive strength training.

Two together beat either alone. Protein without lifting does little for muscle, lifting without enough protein leaves gains on the table, and there's no need for a powder to make it work. More isn't endlessly better either — the benefit levels off around 1.6 g/kg/day.

Educational information based on peer-reviewed human studies. Not medical advice — if you have kidney disease or another condition, get guidance before raising protein intake. AntiAgingGreens never sells or recommends supplements. We report what the evidence shows — and where it stops.