Perimenopause supplements: which ones have evidence and which do not

The supplement aisle has a whole section for perimenopause now, and almost nothing in it has been tested the way a medicine is. That is not a guess: under US law, the FDA does not approve dietary supplements before they are sold, and it does not approve the claims on the label either.³ So the useful question is not which product is best. It is which ingredients have evidence at all.

Supplements for hot flashes: the evidence says no

Hot flashes are the reason most women go looking. In 2023 the Menopause Society (then called NAMS) reviewed every nonhormone option. Its panel did not recommend supplements or herbal remedies for hot flashes, and it did not recommend soy foods, soy extracts or the soy metabolite equol either.¹

Black cohosh is the best known of these, so it has been tested the most. A Cochrane review pooled 16 randomized trials with 2,027 women and found no significant difference between black cohosh and placebo in how often hot flashes happened.²

What did work, in the same review: hormone therapy, which the Menopause Society calls the most effective treatment, several prescription medicines, cognitive behavioral therapy and clinical hypnosis.¹ All of those start with a clinician. If hot flashes or night sweats are affecting your sleep or your work, that appointment is a better use of the money than another bottle. Natural menopause treatments covers the non-drug options that do have evidence.

Supplements with real evidence in this period

The supplements that hold up are not really about symptoms. They support the two things that change quietly during the transition: muscle and bone.

Protein

Protein is not sold as a menopause product, which is exactly why it gets missed. It is the nutrient most closely tied to keeping muscle as estrogen falls, and many women over 40 eat less of it than they think. The Dietary Guidelines for Americans 2025 to 2030 tell adults to prioritize protein foods at every meal, with a goal of 1.2 to 1.6 g per kilogram of body weight a day.⁶ For a 70 kg woman that is 84 to 112 g.

During weight loss the case gets stronger. In a meta-analysis of 24 trials, people on higher protein diets lost about 0.9 kg more fat and kept about 0.4 kg more lean mass than people on standard protein diets with the same calories.⁷

Protein powder is a supplement only in the sense that it is sold in a tub. It is food protein, dried. Use it when meals do not get you to your target, not instead of meals. Is protein powder worth it covers when it makes sense, and the best protein powder for weight loss for women shows how to read the label.

Creatine

In postmenopausal women who did resistance training, 5 g a day or more of creatine added a small amount of lean mass and strength compared with placebo. Without training, or at 3 g a day, trials found no measurable effect, and bone density did not change.⁵ Creatine for women has the dose and the details.

Calcium and vitamin D

These two have official daily requirements, set by the Institute of Medicine.⁴

The same report found that higher intakes did not bring extra benefit, and that very high intakes carry their own risks.⁴ So more is not better. The goal is to reach the requirement, and food often gets most of the way: a pot of Greek yogurt, a glass of milk and a portion of calcium-set tofu or canned salmon add up quickly. The osteoporosis diet shows which foods carry both calcium and protein.

Whether you need a pill on top is worth checking with your doctor, who can also test your vitamin D level rather than guess.

Supplements for belly fat and weight gain

Nothing sold as a menopause belly supplement has been shown to reduce belly fat, and the same goes for products labelled GLP-1: GLP-1 supplements compares them with the real medicines. The products do not need FDA approval before they are sold, and that includes their weight loss claims.³

What does change body composition in this period is less exciting and more reliable: enough protein, regular strength training, and an eating pattern you can keep. Menopause belly fat explains why fat shifts toward the middle and what actually moves it.

Check the gap before you buy

Most women who take a pile of supplements have never checked the simplest thing: how much protein they eat on a normal day. Protein Buddy works out a daily target from a short quiz on your weight, age, activity and goal, and then shows how many grams are left today as you log meals. Typing a meal in by hand is free, with no limit. A week of honest logging tells you whether you need a protein powder at all, which is more useful than any label.

Two related questions have their own pages: vitamins for menopause fatigue and hormone balancing supplements.

When to talk to a clinician

These are reasons to see a doctor rather than a shop shelf:

• Heavy or irregular bleeding.
• Hot flashes or night sweats that stop you sleeping.
• Low mood or anxiety that is new or getting worse.
• Anything that has changed quickly.

Tell them about every supplement you take, because some can interfere with prescription medicines. This page is reference material about nutrition, not medical advice about the menopause transition.