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Head-to-head evidence comparison — which supplement is right for you?
Magnesium vs Teriparatide: Magnesium has the stronger overall evidence (8.5 vs 7/10); 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.
Magnesium wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mixed evidence
2 of 6 studies with measurable effects showed benefit.
Top outcomes
Verdict
Too few graded studies
Top outcomes
200-250mg elemental magnesium daily
Evening for sleep/relaxation (glycinate), Morning for energy (malate), Anytime (citrate)
Depends on goal - see notes
20 micrograms once daily by subcutaneous injection (the approved osteoporosis dose; PRESCRIPTION ONLY)
Any time of day
Subcutaneous injection (prefilled pen)
and 4 more not shown
1-2 weeks
1-2 weeks
1 week
Immediate
Over ~18-24 months of daily use
Over ~18-24 months
Detectable by ~3 months
Hours after each dose
Magnesium supplementation in pregnancy
The Cochrane database of systematic reviews (2014) · Meta analysis · n=9090
Ten trials involving 9090 women and their babies. Only two were judged to be of high quality overall.
Magnesium Supplementation and Blood Pressure: A Systematic Review and Meta-Analysis
Hypertension (2025) · Meta analysis · n=2709
38 RCTs with 2709 participants, median 365 mg elemental magnesium for a median 12 weeks. Systolic BP -2.81 mmHg (95% CI -4.32 to -1.29), diastolic -2.05 mmHg versus placebo.
Magnesium and Potassium Supplementation for Systolic Blood Pressure Reduction in the General Normotensive Population: A Systematic Review and Subgroup Meta-Analysis for Optimal Dosage and Treatment Length
Nutrients (2024) · Meta analysis
Both supplements demonstrated greater reductions in SBP for the general population at lower dosages and longer treatment durations.
Effect of parathyroid hormone (1-34) on fractures and bone mineral density in postmenopausal women with osteoporosis.
N Engl J Med (2001) · Rct · n=1637
Pivotal Fracture Prevention Trial: 1637 postmenopausal women with prior vertebral fractures randomized to PTH(1-34) 20 or 40 microg/day or placebo, median 21 months
Effects of teriparatide and risedronate on new fractures in post-menopausal women with severe osteoporosis (VERO): a multicentre, double-blind, double-dummy, randomised controlled trial.
Lancet (2018) · Rct · n=1360
Head-to-head double-blind, double-dummy RCT of teriparatide 20 microg/day vs risedronate 35 mg/week in 1360 women with severe osteoporosis over 24 months
Teriparatide or alendronate in glucocorticoid-induced osteoporosis.
N Engl J Med (2007) · Rct · n=428
18-month randomized, double-blind, controlled head-to-head trial in 428 patients with glucocorticoid-induced osteoporosis
Magnesium has a higher evidence score (8.5/10 vs 7/10) and wins in 2 of 3 categories.
Both Magnesium and Teriparatide score equally (85) for bone health.
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
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The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.