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Head-to-head evidence comparison — which supplement is right for you?
Raloxifene (Evista) vs Vitamin C: Vitamin C has the stronger overall evidence (8 vs 5.3/10); they're alternatives for bone health — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Vitamin C wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
12 of 17 studies with measurable effects showed benefit.
Top outcomes
Approved (postmenopausal women) / off-label (male) — clinician-directed. For osteoporosis treatment/prevention and breast-cancer risk reduction the standard, validated dose is 60 mg once daily (the MORE, CORE, RUTH and STAR trials all used 60 mg/day; MORE also tested 120 mg/day with no clear added fracture benefit and more side effects). For off-label male gynecomastia the small published pediatric series used roughly 60 mg/day; there is no FDA-approved male dose and the male evidence is thin and retrospective.
any
Raloxifene hydrochloride 60 mg tablets (approved for postmenopausal osteoporosis and breast-cancer risk reduction)
500-1000mg
With meals, Split doses if taking >500mg
Ascorbic acid or buffered vitamin C
Months to years
Years
Throughout use
Throughout use
Ongoing
1-2 weeks
4-8 weeks
With high doses (>2g)
Reduction of vertebral fracture risk in postmenopausal women with osteoporosis treated with raloxifene: results from a 3-year randomized clinical trial. Multiple Outcomes of Raloxifene Evaluation (MORE) Investigators.
JAMA (1999) · Rct · n=7705
MORE: multicenter, randomized, double-blind, placebo-controlled trial of raloxifene 60 or 120 mg/day in 7,705 postmenopausal women with osteoporosis, followed up to 36 months
The effect of raloxifene on risk of breast cancer in postmenopausal women: results from the MORE randomized trial. Multiple Outcomes of Raloxifene Evaluation.
JAMA (1999) · Rct · n=7705
Pre-specified breast-cancer analysis of the MORE RCT (7,705 postmenopausal women with osteoporosis), followed a median 40 months
Continuing outcomes relevant to Evista: breast cancer incidence in postmenopausal osteoporotic women in a randomized trial of raloxifene.
J Natl Cancer Inst (2004) · Rct · n=5213
CORE: extension of the randomized MORE trial giving 4 additional years of raloxifene 60 mg/day (n=3,510) vs continued placebo (n=1,703)
Vitamin C supplementation for prevention and treatment of pneumonia
The Cochrane database of systematic reviews (2020) · Meta analysis · n=2774
We are uncertain of the effect of vitamin C supplementation on mortality due to pneumonia (RR 0.21, 95% CI 0.03 to 1.66; 1 study, 57 participants; very low-quality evidence).
Vitamin C supplementation in pregnancy
The Cochrane database of systematic reviews (2015) · Meta analysis · n=20038
Conversely, the risk of term PROM was increased when supplementation included vitamin C and vitamin E (average RR 1.73, 95% CI 1.34 to 2.23; 3060 participants; two studies; I² = 0%).
Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults
Nutrients (2025) · Systematic review
Most studies (77%) had a low risk of bias.
Based on 3 meta-analyses of sepsis patients. One study showed RR 0.60 for mortality reduction, but another showed increased risk (RR 1.21). Evidence quality rated as low to very low. Effect limited to intravenous administration in critically ill patients.
AI-estimated from published studies. Interpret as directional guidance.
Vitamin C has a higher evidence score (8/10 vs 5.3/10) and wins in 3 of 3 categories.
For bone health, Raloxifene (Evista) has a higher relevance score (76 vs 70).
No known interactions between Raloxifene (Evista) and Vitamin C have been documented in our database. However, always consult a healthcare provider before combining supplements.
AREDS2 works for diagnosed AMD; lutein/screen-strain claims are weaker. Who actually benefits.
CoQ10, zinc, selenium, carnitine modestly help sperm parameters — but live-birth evidence is weak.
Zinc timing, vitamin D, the real vitamin C effect — and the elderberry caution.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.