Eating through menopause: what changes and what does not

Written and evidence-checked by the VeriNourish Editorial Team against 7 named sources listed below. No licensed clinician reviews this content.

The advice aimed at women in menopause is mostly about weight, and mostly wrong about why. The thing that shifts first is not the number on the scale. It is what your body is made of, and that has consequences the scale cannot show.

What actually changes: muscle and bone

A narrative review in Nutrients put numbers on the transition. Lean body mass fell by an average of 0.5% a year, a mean absolute drop of 0.2 kg annually. Fat mass rose 1.7% a year, a mean gain of 0.45 kg. Bone density loss accelerates through late perimenopause (Nutrients, 2021). Cycles often become irregular earlier than that, so cycle changes alone do not tell you which stage you are in.

On those averages, fat gained slightly outweighs lean tissue lost, so weight usually drifts up rather than holding still. What the figures do show is that composition changes underneath whatever the scale reports, which is why the scale on its own is a poor guide here. It is still worth tracking if you are being assessed for cardiometabolic risk.

Muscle contributes to how many calories you burn at rest, so losing it lowers that figure. Energy expenditure shifts for more than one reason, and lean mass is not a single tissue, so treat this as part of the explanation rather than the whole of it.

Our guide on perimenopause covers where you are in the transition, and weight gain covers the scale question directly.

Protein: more than the standard recommendation

The familiar 0.8 g per kg of body weight is the RDA for adults, women over 50 included. It is set to meet basic requirements, not to optimize muscle retention, which is a different question and the one that matters here (Dietary Reference Intakes).

The European Society for Clinical Nutrition and Metabolism proposes 1.0 to 1.2 g per kg daily as optimal for a healthy older adult (Nutrients, 2018). Observational work cited in the 2021 review associates intakes around 1.6 g per kg with higher muscle mass (Nutrients, 2021).

For a woman of 65 kg, 1.0 to 1.2 g per kg works out at 65 to 78 g a day. Whether that is an increase for you depends on what you already eat, and the benefit of adding protein is smaller if your intake is already adequate.

Our protein guide covers how to spread it across meals, protein sources shows what those grams look like on a plate, and the protein calculator gives you a number for your own weight.

Protein without training does much less

This is the caveat the supplement aisle leaves out.

In the 2018 review, one trial of added protein showed no benefit; the authors discuss both an already adequate baseline intake and the absence of resistance exercise as possible explanations. Another trial found that a protein-enriched diet at 1.3 g per kg, reached through lean red meat, added to the effect of resistance training on lean body mass and muscle strength (Nutrients, 2018).

Comparing separate trials cannot isolate why one worked and another did not. What the evidence does support is pairing the two: resistance training is what gives added protein something to do, and extra protein on top of an already adequate intake is not guaranteed to add anything by itself. Our build muscle guide covers the training side.

How much calcium and vitamin D?

Calcium targets differ between countries and by age. The UK reference nutrient intake for adults is 700 mg a day; the US RDA for women aged 51 and over is 1,200 mg. A range of 1,000 to 1,500 mg is often quoted for postmenopausal women from a North American Menopause Society position, but that figure dates from 2006 and is reported second-hand in the 2021 review rather than being current guidance (Nutrients, 2021).

The number that matters is your total intake from food and supplements together, not the dose printed on a bottle. Dairy, fortified plant milks, tinned fish with bones and leafy greens all count toward it, and a supplement is there to close a measured gap.

On combined supplementation, the 2021 review reports vitamin D at 400 to 800 IU with calcium at 1,000 to 1,200 mg daily as the more promising strategy for fracture prevention (Nutrients, 2021). That evidence comes largely from populations at raised fracture risk or with low baseline intake, so it does not translate into a benefit for every healthy woman.

Testing vitamin D is where recent guidance changed. The Endocrine Society's 2024 guideline suggests against routine 25(OH)D screening in healthy adults, and against routine supplementation in the general population aged 50 to 74 beyond the recommended dietary intake for that group (Endocrine Society, 2024; wording clarified by a published correction). That distinction matters: it is not advice against meeting the standard 600 to 800 IU, and a supplement is a legitimate way to reach it if your diet and sun exposure do not. What it advises against is routinely taking more than that without a reason. Menopause on its own is not a reason to test, either. Testing is for people with a reason to suspect deficiency, or with osteoporosis, malabsorption or other conditions that change the picture. Our guides on calcium and vitamin D cover forms and testing, and bone health covers the wider picture.

Bone needs more than two nutrients

Calcium and vitamin D dominate the conversation because they are easy to sell. The 2024 review of nutrition-based support for osteoporosis treats those two as the pair with the most robust evidence, then works through phosphorus, magnesium, vitamins B6, B9 and B12, vitamin C for collagen synthesis, vitamin E, vitamin K for activating osteocalcin, phytate and phytoestrogens (Int J Womens Health, 2024).

Most of that list describes biological roles and mixed data rather than nutrients shown to prevent fractures when taken as supplements. The review's own conclusion is the practical one: because nutrients interact inside a meal in ways a capsule cannot reproduce, it recommends a Mediterranean dietary pattern over supplementing isolated nutrients (Int J Womens Health, 2024).

In practice that pattern means vegetables and fruit at most meals, beans and lentils, whole grains, nuts, olive oil as the main fat, fish a couple of times a week, and less red and processed meat. Dairy or fortified alternatives sit alongside it for calcium. That is the shape of the diet the evidence points at, and it covers the bone nutrients above without a spreadsheet.

Soy and phytoestrogens

Soy isoflavones are marketed for hot flashes, and trials of them for vasomotor symptoms do exist. The problem is not that the question went unstudied. The 2023 North American Menopause Society position on nonhormone therapies does not recommend soy foods, extracts or isoflavone supplements for vasomotor symptoms, on the grounds that results are inconsistent and the quality of evidence is limited (NAMS, 2023).

A separate strand concerns the heart rather than symptoms: the 2021 review reports higher dietary isoflavone intake associated with less subclinical cardiovascular disease, independently of estradiol and BMI (Nutrients, 2021). That is an observational association from food, not evidence that a capsule relieves symptoms.

Soy foods are a reasonable part of the diet either way. Our menopause supplements guide covers which supplements have support and which do not.

For hot flashes specifically, diet is not a reliable treatment, though weight management is among the nonhormone options NAMS does support for some women. Our hot flashes guide covers what helps, and HRT covers the option most often discussed with a doctor.

What to do with all this

If you change one thing, pair protein with two resistance sessions a week. That combination has the clearest evidence behind it and it addresses the change that actually happens. If your protein intake is already in the 1.0 to 1.2 g per kg range, adding more is unlikely to be the useful lever; the training is.

Beyond that: build calcium intake from food first, and eat a diet varied enough to cover the other bone nutrients without a spreadsheet. Vitamin D testing is worth asking about when there is a reason to suspect deficiency, not as a routine check because you have reached menopause.

Speak to your doctor rather than adjusting diet alone if you have had a fracture from a minor fall, if you have a family history of osteoporosis or have been told your bone density is low, if you are on long-term steroids, or if you have unexplained weight loss. Those situations need assessment, not a supplement.

This is general information and not a treatment plan for your situation. Your doctor has your bloods, your bone density if it has been measured, and your history.

Frequently asked questions

Does your metabolism crash at menopause?

Not the way the phrase suggests. Across the transition, lean mass falls about 0.5% a year while fat mass rises about 1.7% a year. Losing muscle lowers the calories you burn at rest, so part of the change is real, though energy expenditure shifts for more than one reason. It is gradual, and protein with resistance training addresses the muscle side of it.

How much protein do I need after menopause?

European clinical nutrition guidance proposes 1.0 to 1.2 g per kg of body weight daily for healthy older adults, above the 0.8 g per kg RDA, which is set to meet basic requirements rather than to preserve muscle. Your own target depends on your age, diet, activity and any health conditions. Protein is studied alongside resistance training, and adding more on top of an already adequate intake is not guaranteed to help by itself.

How much calcium should I take?

Think in total intake from food plus supplements, not the dose on a bottle. The UK sets 700 mg a day for adults and the US RDA for women 51 and over is 1,200 mg. Dairy, fortified plant milks, tinned fish with bones and leafy greens count toward it, and a supplement is there to close a measured gap.

Should I get my vitamin D tested at menopause?

Not routinely. The Endocrine Society's 2024 guideline suggests against routine 25(OH)D screening in healthy adults, and against supplementation in the general population aged 50 to 74 beyond the recommended dietary intake. A published correction clarified that wording: it is not advice against meeting the standard 600 to 800 IU, only against routinely exceeding it without a reason. Testing is for people with a reason to suspect deficiency or with conditions such as osteoporosis or malabsorption.

Do soy or phytoestrogen supplements help hot flashes?

The 2023 North American Menopause Society position does not recommend soy foods, extracts or isoflavone supplements for hot flashes, because trial results are inconsistent and the evidence quality is limited. A separate observational finding links higher dietary isoflavone intake with less subclinical cardiovascular disease, which is a different claim about a different outcome.