The structural problem
In most markets, supplements are regulated as food rather than as medicine. That means nobody has to demonstrate that the product does what the box implies before it goes on sale, and nobody has verified that the capsule contains what the label says in the quantity stated.
This is not a conspiracy, it is a regulatory category. But it does mean that the confidence of a claim on a package carries no information at all about the evidence behind it, and that the burden of scepticism falls entirely on you.
Four questions
1. Evidence in whom? A trial in twenty postmenopausal women in a single clinic is not the same as a trial in two thousand. A trial in men, or in rats, is not evidence about you.
2. Evidence for what outcome? A great deal of supplement research measures something adjacent to the claim. A change in a blood marker is not the same as sleeping better, and the marketing routinely closes that gap on your behalf.
3. Compared with what? Against placebo, or against nothing? Menopausal symptoms have a famously large placebo response, in some trials thirty per cent or more, which means an uncontrolled study proves almost nothing.
4. Who paid for it? Not disqualifying, but worth knowing.
What the grades here mean
Strong. Multiple good-quality trials point the same way, for this outcome, in roughly this population.
Moderate. Real evidence exists but it is smaller, mixed, or in a slightly different population than you.
Limited. The trials are thin, conflicting, or measuring something adjacent to what the label implies.
Comfort, not treatment. No meaningful clinical evidence, and we are not claiming any. It is low risk and women consistently report it makes things easier. That is a legitimate reason to own something and a poor reason to call it a treatment.
We would not buy this. Either the evidence points the other way, the risk is not proportionate, or the claim cannot be kept by the ingredient. We link to nothing in this grade.
Grades are set before commercial terms are considered. Two entries in the Picks catalogue carry no purchase link at all, which is the only meaningful way to demonstrate that.
The short list
Protein. Not exciting, and the highest-leverage thing in the category. Powder is a delivery mechanism for a target you could also hit with food.
Creatine monohydrate. The best-evidenced supplement in this category for muscle and strength, provided you are actually training. Three to five grams a day of the plain, cheap form.
Vitamin D, where you are deficient. Get tested. It converts a guess into a dose, and deficiency is genuinely common.
Calcium from food, to about 1,000 to 1,200mg. Food first. High-dose supplementation beyond dietary intake has a weaker case than most people assume.
That is the list. Four items, and two of them are food.
The long list
Black cohosh, red clover, evening primrose, maca, dong quai, wild yam cream, and the very large category of blends marketed as hormone balancing. The evidence ranges from thin to absent, and the trials that do exist are frequently small and uncontrolled against a placebo response that is known to be large.
Detox and hormone-balancing teas deserve a separate mention because they are the most cynical corner of this market. Many work by being a laxative, which produces a rapid change on the scale that is then presented to the buyer as progress.
Interactions
Weak evidence is not the same as no risk, and herbal does not mean inert.
St John’s wort induces liver enzymes and reduces the effectiveness of a long list of medications including hormonal contraception and some antidepressants. Black cohosh has case reports of liver injury. Several herbal preparations affect clotting. Magnesium binds some antibiotics and thyroid replacement, so they need separating by several hours.
If you are taking anything prescribed, tell your doctor or pharmacist what supplements you take. Most people do not, because it does not feel like taking medication.