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Head-to-head evidence comparison — which supplement is right for you?
Iron wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
9 of 13 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
2 of 2 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Iron and Shilajit have evidence — compare verdict strength side-by-side.
18-45mg elemental iron for deficiency (varies by severity)
On empty stomach if tolerated, Away from tea, coffee, dairy
Ferrous bisglycinate (gentle, well-absorbed) or iron protein succinylate
300-500mg purified extract
Morning, With or without food
Purified resin or PrimaVie extract
2-4 weeks
4-8 weeks
4-12 weeks
2-4 weeks
8-12 weeks
2-4 weeks
Daily oral iron supplementation during pregnancy
The Cochrane database of systematic reviews (2024) · Meta analysis · n=48971
There is probably little to no difference in maternal death (2 versus 4 events, RR 0.57, 95% CI 0.12 to 2.69; 3 trials, 14,060 women; moderate-certainty evidence).
The Prevalence of Anemia among Pregnant Women in China: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=722
The results showed that the prevalence of anemia, ID, and IDA among pregnant women in China were 30.7% (95% CI: 26.6%, 34.7%), 45.6% (95% CI: 37.0%, 54.2%), and 17.3% (95% CI: 13.9%, 20.7%), respectively.
Treatment for women with postpartum iron deficiency anaemia
The Cochrane database of systematic reviews (2024) · Meta analysis · n=572
Intravenous iron versus oral iron supplementation The evidence is very uncertain about the effect of intravenous iron on mortality (risk ratio (RR) 2.95, 95% confidence interval (CI) 0.12 to 71.96; P = 0.51; I² = not applicable; 3 RCTs; 1 event; 572 women; very low-certainty evidence).
Safety and efficacy of shilajit (mumie, moomiyo)
Phytotherapy research : PTR (2014) · Systematic review
Furthermore, animal and human data support its use as a 'revitalizer', enhancing physical performance and relieving fatigue with enhanced production of ATP.
Shilajit: a review
Phytotherapy research : PTR (2007) · Systematic review
It has been found to consist of a complex mixture of organic humic substances and plant and microbial metabolites occurring in the rock rhizospheres of its natural habitat.
Effects of 12 Weeks of Chromium, Phyllanthus emblica Fruit Extract, and Shilajit Supplementation on Markers of Cardiometabolic Health, Fitness, and Weight Loss in Men and Women with Risk Factors to Metabolic Syndrome Initiating an Exercise and Diet Intervention: A Randomized Double-Blind, Placebo-Controlled Trial
Nutrients (2025) · Rct · n=166
Methods: In total, 166 sedentary men and women with at least two markers of metabolic syndrome participated in a randomized, placebo-controlled, parallel-arm, and repeated-measure intervention study, of which 109 completed the study (48.6 ± 10 yrs., 34.2 ± 6 kg/m2, 41.3 ± 7% fat).
Based on meta-analyses showing hemoglobin improvements of 2.01-5.30 g/dL in iron deficient populations. Higher doses show diminishing returns with increased GI side effects. Effectiveness varies significantly by baseline iron status and form used.
Based on 20% testosterone increase in healthy volunteers at 500mg for 90 days. Conservative estimate given systematic review found most testosterone boosters fail to increase levels. Limited to purified extracts only.
AI-estimated from published studies. Interpret as directional guidance.
Iron has a higher evidence score (9/10 vs 8/10) and wins in 2 of 3 categories.
For boost daily energy, Iron has a higher relevance score (90 vs 70).
No known interactions between Iron and Shilajit have been documented in our database. However, always consult a healthcare provider before combining supplements.