The Evidence-First Supplement Shelf: What to Look For Before You Buy

This is the practical companion to Proven Supplements? What the Menopause Evidence Actually Supports. The evidence article asks whether a category is useful. This shelf asks how to compare actual Canadian products without confusing a product licence, a plausible mechanism or a polished label with proof that it treats menopause.

Affiliate disclosure: Maple Menopause may earn a commission from qualifying purchases at no additional cost to you. Inclusion would mean that a product fits a carefully defined category and has a verified destination—not that it has been proven to treat menopause or that it is right for every reader.

Start with the reason, not the bottle

“Better sleep,” “stronger bones,” “more muscle” and “my blood test showed a deficiency” are different problems. Before comparing brands, identify the outcome, check whether a supplement is actually indicated and decide how you would know whether it helped. Correcting an inadequate intake or documented deficiency is not evidence that extra amounts benefit someone who is already sufficient.

What an NPN does—and does not—tell you

An eight-digit Natural Product Number identifies a natural health product licensed for sale in Canada for the conditions of use on its authorized label. Check that the product name, ingredients and dose match the current Health Canada record. An NPN does not establish strong menopause-specific evidence, approve claims added by a marketplace seller or tell you that the product fits your health history and medications.

Vitamin D: match the dose to the plan

• Why someone might consider it: to help meet recommended intake, correct deficiency or support an individualized bone-health plan.
• What the evidence supports: vitamin D is necessary for calcium absorption and bone health; Canadian guidance recommends minimum supplementation for adults over 50 alongside food sources.
• What it does not establish: that higher doses prevent fractures or treat menopause symptoms in people who are already sufficient.
• Check the label: vitamin D amount per dose, serving size, NPN and whether calcium or other ingredients have been added unnecessarily.
• Caution: treatment doses for deficiency, malabsorption or other conditions belong in an individualized plan. Excess vitamin D can cause harm.

For screening, nutrition and fracture prevention, read Bone Health After 40.

Creatine monohydrate: useful only in context

• Why someone might consider it: as an adjunct to a progressive resistance-training program.
• What the evidence supports: small additional gains in lean mass and strength in postmenopausal women, particularly when creatine is paired with resistance training.
• What it does not establish: reliable bone-density improvement, a menopause cure or benefit without the training stimulus.
• Check the label: plain creatine monohydrate, grams per serving, full ingredient list, NPN where applicable and a realistic serving size.
• Caution: discuss kidney disease, pregnancy and complex medical care with a qualified professional.

Creatine does not replace adequate food or training. Protein After 40 covers the broader muscle-and-nutrition picture.

Magnesium: compare elemental magnesium, not hype

• Why someone might consider it: to meet magnesium needs when intake is inadequate or when a clinician has identified a reason to supplement.
• What the evidence supports: magnesium is an essential nutrient; correcting inadequacy is different from treating insomnia.
• What it does not establish: a universal sleep benefit, menopause-specific treatment or clear superiority of bisglycinate over every other form.
• Check the label: elemental magnesium per dose, compound form, NPN, non-medicinal ingredients and the number of capsules required.
• Caution: supplements can cause diarrhea, accumulate in kidney disease and interfere with absorption of some medicines.

If sleep is the reason you are shopping, start with the menopause sleep guide. For stress and anxiety products, use the separate evidence guide to supplements, teas and aromatherapy.

Why K2 is not currently on this shelf

Vitamin K2 research in postmenopausal osteoporosis is biologically interesting and some trials report changes in bone markers or lumbar-spine density. Fracture results are less secure, formulations and doses vary, and K2 is not a routine Canadian menopause recommendation. It also has a potentially dangerous interaction with warfarin and similar anticoagulants. Until a product has a clearly justified role, a verified Canadian label and an appropriate reader use case, omitting it is more honest than filling a fourth slot.

The shortlist rule

1. The category must have a defensible use in the evidence article.
2. The exact Canadian product and current destination must be verified.
3. The label must show the ingredient and usable dose clearly.
4. The NPN and authorized conditions of use must be checked where applicable.
5. The description must state what the evidence does not prove.
6. No proprietary “menopause stack,” detox claim or placeholder earns a place.

Evidence before shopping: return to Proven Supplements? What the Menopause Evidence Actually Supports before deciding whether any product belongs in your plan.