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Perimenopause · Evidence-ranked roundup

Best supplements for perimenopause, ranked by evidence

Educational guide · Updated July 2026

Perimenopause supplement lists usually rank by popularity or by whatever a brand is selling. This one ranks by evidence. We grouped the ingredients from our supplement library by how well the research actually supports them — from a handful with strong, guideline-backed data down to popular options where the evidence is thin. Nothing here reverses menopause or replaces a conversation with a clinician, but knowing which supplements have real support helps you spend money and hope wisely.

How we ranked these

Each ingredient carries our editorial evidence grade, a synthesis of the primary research and guideline consensus: strong means multiple randomized trials plus guideline endorsement; moderate means mixed trials with a real but variable effect; weak means small or inconsistent trials; and insufficient means mostly preclinical or anecdotal, with no reliable trial signal. Grades are not a rating of any brand or product — supplements are unregulated for efficacy, so the studied ingredient and dose matter more than the label.

Strongest evidence

These have multiple randomized trials and, in most cases, guideline endorsement. They are the closest thing to a safe bet — though even here the benefit depends on your individual needs and levels.

  1. #1

    Vitamin D

    Strong evidence

    Randomized trials and guidelines confirm that vitamin D combined with adequate calcium reduces fracture risk in vitamin-D-insufficient older adults, particularly postmenopausal women. Evidence for mood, cognition, and infection prevention is weaker and mixed. Supplementation is most useful when serum 25-hydroxyvitamin D is measured and low.

    Commonly used for: bone health, osteoporosis prevention, mood, immune support. Read the full Vitamin D review →

  2. #2

    Protein

    Strong evidence

    Adequate protein has strong evidence for preserving muscle and strength with resistance training, and higher intakes increase satiety and support healthy weight. Older adults, including menopausal women, often need more than the minimum RDA to offset age-related muscle loss. Whole-food protein and powders are both effective; total daily intake matters most.

    Commonly used for: muscle maintenance, strength and aging, appetite and satiety, menopausal muscle loss. Read the full Protein review →

  3. #3

    Iron

    Strong evidence

    For people who are iron-deficient, oral iron reliably raises hemoglobin and ferritin and improves fatigue and anemia — a well-established, guideline-backed effect. The key caveat is that iron only helps when you are actually deficient; supplementing without confirmed low iron adds no benefit and can be harmful. Confirm ferritin with a clinician first.

    Commonly used for: iron-deficiency anemia, fatigue from low iron, heavy menstrual bleeding, restless legs. Read the full Iron review →

Moderate evidence

Real but variable effects — the trials are mixed, smaller, or often industry-funded. Reasonable to try for the right symptom, with realistic expectations.

  1. #4

    Magnesium glycinate

    Moderate evidence

    Randomized trials suggest magnesium supplementation improves subjective sleep quality and reduces nighttime awakenings in older adults, and small studies in perimenopausal women report modest reductions in hot-flash frequency. Evidence for anxiety and mood is mixed. Glycinate form is favored for gastrointestinal tolerability rather than superior absorption.

    Commonly used for: sleep disturbance, hot flashes, anxiety, muscle cramps. Read the full Magnesium glycinate review →

  2. #5

    Omega-3 fish oil

    Moderate evidence

    Meta-analyses suggest EPA-predominant omega-3 formulations produce small-to-moderate reductions in depression scores, and higher-dose prescription omega-3 reduces triglycerides. Evidence for hot flashes and joint pain is mixed. Cardiovascular event-reduction claims apply mainly to high-risk populations at prescription doses.

    Commonly used for: perimenopausal mood, depression symptoms, joint pain, cardiovascular support. Read the full Omega-3 fish oil review →

  3. #6

    Black cohosh

    Moderate evidence

    Randomized trials and pooled analyses suggest standardized black-cohosh extracts modestly reduce hot-flash frequency and severity versus placebo over 12 weeks, with effect sizes smaller than hormone therapy. The Menopause Society considers evidence inconsistent but non-hormonal, and generally does not recommend it as first-line vasomotor treatment.

    Commonly used for: hot flashes, night sweats, vasomotor symptoms, mood. Read the full Black cohosh review →

  4. #7

    Ashwagandha

    Moderate evidence

    Multiple small randomized trials suggest standardized ashwagandha root extract reduces perceived stress and morning salivary cortisol versus placebo over 8–12 weeks, with modest signals for sleep and menopausal symptoms. Trials are short, sponsor-heavy, and use varied extract standards, so effect sizes and long-term safety remain uncertain.

    Commonly used for: stress, cortisol regulation, perimenopausal mood, sleep. Read the full Ashwagandha review →

  5. #8

    Collagen peptides

    Moderate evidence

    Small-to-medium randomized trials suggest hydrolyzed collagen peptides can improve self-reported joint discomfort, skin elasticity, and — in one 4-year trial — bone-mineral density in postmenopausal women. Effect sizes are modest, trials are often industry-funded, and independent replication is limited.

    Commonly used for: joint pain, skin elasticity, nail brittleness, postmenopausal bone density. Read the full Collagen peptides review →

  6. #9

    L-theanine

    Moderate evidence

    L-theanine, an amino acid found in tea, has fairly consistent small-trial evidence for lowering subjective stress and physiological stress markers (including cortisol response) and promoting relaxation without sedation. A 2019 randomized trial reported reduced stress-related symptoms and better sleep over four weeks. Effect sizes are modest and most trials are short.

    Commonly used for: stress, cortisol regulation, anxiety, sleep quality. Read the full L-theanine review →

  7. #10

    Creatine

    Moderate evidence

    Creatine monohydrate has strong evidence for improving strength and lean mass when paired with resistance training, and meta-analyses show benefit in older adults. Data specific to women — including menopause, bone, and cognition — are promising but smaller and still emerging. Creatine is one of the most studied and well-tolerated sports supplements.

    Commonly used for: muscle strength, lean muscle mass, exercise performance, menopausal muscle loss. Read the full Creatine review →

  8. #11

    Saffron

    Moderate evidence

    Meta-analyses of small randomized trials suggest standardized saffron extract improves symptoms of mild-to-moderate depression versus placebo, with some trials reporting effects comparable to low-dose antidepressants. Smaller studies suggest benefit for PMS. Trials are short and often small, and saffron is not a replacement for prescribed treatment of clinical depression.

    Commonly used for: low mood, mild-to-moderate depression symptoms, PMS, perimenopausal mood. Read the full Saffron review →

Weaker or emerging evidence

Popular, but the data are small, short, or inconsistent. They may help some people, yet the evidence does not clearly support routine use.

  1. #12

    Red clover

    Weak evidence

    Randomized trials of red clover isoflavone extracts for hot flashes show inconsistent, mostly small effects versus placebo. A Cochrane review found no clear benefit for vasomotor symptoms overall. Long-term safety in women with hormone-sensitive conditions is not established.

    Commonly used for: hot flashes, night sweats, vasomotor symptoms, bone density. Read the full Red clover review →

  2. #13

    Maca root

    Weak evidence

    Small randomized trials suggest gelatinized maca root may modestly improve self-reported sexual desire and menopause symptom scores relative to placebo, without measurable hormonal changes. Sample sizes are small, funding is often industry-linked, and Cochrane-style reviews conclude the evidence is limited and inconsistent.

    Commonly used for: low libido, sexual satisfaction, perimenopausal mood, energy. Read the full Maca root review →

  3. #14

    Evening primrose oil

    Weak evidence

    Randomized trials of evening primrose oil for cyclical mastalgia, PMS, and menopausal hot flashes show inconsistent, mostly small effects versus placebo. Systematic reviews conclude the evidence does not support routine use, though the safety profile at typical doses is generally favorable.

    Commonly used for: breast tenderness, mastalgia, PMS, hot flashes. Read the full Evening primrose oil review →

  4. #15

    Rhodiola rosea

    Weak evidence

    Rhodiola rosea is an adaptogen with several small randomized and open-label trials suggesting reduced stress-related fatigue and burnout symptoms, with inconsistent effects on cortisol itself. Trial quality is mixed, many studies are open-label or industry-linked, and extract standardization (rosavins and salidroside) varies, so the evidence is considered preliminary.

    Commonly used for: stress, fatigue, cortisol regulation, burnout. Read the full Rhodiola rosea review →

  5. #16

    Turmeric

    Weak evidence

    Small randomized trials and meta-analyses suggest curcumin, the active compound in turmeric, may modestly reduce osteoarthritis-related joint pain, sometimes comparable to anti-inflammatory drugs in short studies. Evidence for other uses is weaker and trials are small and variable. Curcumin is poorly absorbed, so many products add black pepper (piperine) to boost uptake.

    Commonly used for: joint pain, osteoarthritis symptoms, inflammation, menopausal aches. Read the full Turmeric review →

  6. #17

    Probiotics

    Weak evidence

    Evidence for probiotics in women is strain-specific and mixed. Some trials suggest certain Lactobacillus strains may help maintain vaginal flora and reduce bacterial vaginosis recurrence when used with standard treatment, but a Cochrane review found no clear benefit for preventing urinary tract infections. Results vary by strain, dose, and product, so broad claims outrun the data.

    Commonly used for: vaginal health, bacterial vaginosis recurrence, urinary tract infection prevention, digestive health. Read the full Probiotics review →

Insufficient evidence

Here the marketing clearly outruns the science. Well-controlled trials showing meaningful benefit are lacking, so treat the popular claims with caution.

  1. #18

    DIM (diindolylmethane)

    Insufficient evidence

    DIM is a metabolite of compounds in cruciferous vegetables. Small pilot studies suggest it may shift urinary estrogen-metabolite ratios, but well-controlled trials showing meaningful clinical benefit for PMS, acne, or menopausal symptoms are lacking. Popular "estrogen dominance" framing outpaces the evidence.

    Commonly used for: estrogen metabolism, estrogen dominance concerns, hormonal acne, PMS. Read the full DIM (diindolylmethane) review →

Supplements are not a hormone-therapy substitute

For moderate-to-severe perimenopausal symptoms, prescription options — including hormone therapy — have stronger evidence than any supplement on this list. This page is informational and does not recommend a dose or product. To weigh medical options, speak with a licensed clinician; you can also browse our menopause telehealth reviews.

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Related reading

Frequently asked questions

What are the best-evidenced supplements for perimenopause?
The strongest evidence is for vitamin D (with adequate calcium) for bone health, protein for preserving muscle and supporting satiety, and iron when blood tests confirm deficiency. Magnesium, omega-3, and black cohosh have moderate, more variable evidence. Many other popular options have weak or insufficient evidence.
Does black cohosh work for hot flashes?
The evidence is mixed. A Cochrane review found insufficient evidence that black cohosh reduces hot flashes, while some individual randomized trials report a modest reduction in frequency and severity versus placebo over about 12 weeks. Because results are inconsistent, professional guidelines do not consider black cohosh a first-line treatment for vasomotor symptoms.
Are perimenopause supplements FDA-approved?
No. Dietary supplements are not evaluated by the FDA for efficacy before sale, and label claims are not FDA-verified. That is one reason to weigh the actual trial evidence for each ingredient and to review any supplement plan with a clinician, especially if you take other medications.
Should I take supplements or consider hormone therapy?
They answer different questions. Supplements target specific symptoms or nutritional gaps with generally modest effects. For moderate-to-severe menopausal symptoms, prescription hormone therapy has stronger evidence. A clinician can help you compare options based on your symptoms, history, and preferences — a supplement is not a substitute for that evaluation.
Can supplements interact with my medications?
Yes. Many supplements have documented interactions — for example, magnesium with certain antibiotics and bisphosphonates, black cohosh with liver-affecting drugs, and iron with levothyroxine. Each monograph lists the specific interactions. Always tell your clinician and pharmacist what you take.

Primary medical sources

  1. NAMSThe Menopause Society (NAMS) 2023 position statement on nonhormone therapy for vasomotor symptoms.
  2. NAMSThe Menopause Society (NAMS) 2021 position statement on osteoporosis management in postmenopausal women.
  3. PubMedBischoff-Ferrari HA et al. "A pooled analysis of vitamin D dose requirements for fracture prevention." N Engl J Med 2012;367(1):40-49.
  4. PubMedLeach MJ, Moore V. "Black cohosh (Cimicifuga spp.) for menopausal symptoms." Cochrane Database Syst Rev 2012;9:CD007244.
  5. PubMedBoyle NB et al. "The effects of magnesium supplementation on subjective anxiety and stress — a systematic review." Nutrients 2017;9(5):429.
  6. FDAFDA. "Dietary Supplements" — supplements are not evaluated by the FDA for efficacy; label claims are not FDA-verified.

ClearHormones publishes editorial health information for education only — not medical advice.