Iron
Iron (as Iron Bisglycinate Chelate)
Essential mineral for hemoglobin and myoglobin oxygen transport; cofactor for mitochondrial electron transport chain and DNA synthesis enzymes
Typical longevity dose: 18-36 mg/day (varies by need)
Price Comparison
| Product | Vendor | Price | Per Serving | Trust | |
|---|---|---|---|---|---|
NOW Foods Iron 18mg 120 Capsules 18mg · capsule · 120 servings | iHerb | $9.17 | $0.08 | 8 | Buy |
NOW Foods Iron 36mg 90 Capsules 36mg · capsule · 90 servings | iHerb | $9.78 | $0.11 | 8 | Buy |
Thorne Iron Bisglycinate 25mg 60 Capsules 25mg · capsule · 60 servings | iHerb | $16.00 | $0.27 | 8 | Buy |
Thorne Iron Bisglycinate 25mg 60 Capsules 25mg · capsule · 60 servings | Thorne | $16.00 | $0.27 | 9 | Buy |
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Key Research
Iron deficiency is the most common nutritional deficiency worldwide, affecting cognition, immunity, and energy
Camaschella C (2015). New England Journal of Medicine
Iron bisglycinate produces fewer GI side effects than ferrous sulfate while maintaining equivalent absorption
Tolkien Z et al. (2015). PLoS One
Interaction Warnings
Calcium
Calcium inhibits iron absorption when taken simultaneously; separate by 2+ hours
Levothyroxine
Iron reduces thyroid hormone absorption; take 4+ hours apart
Zinc
High-dose zinc and iron compete for absorption via DMT1 transporter
Synergies
Vitamin C
Vitamin C converts ferric to ferrous iron, dramatically increasing non-heme iron absorption
Vitamin A
Vitamin A helps mobilize iron stores and supports erythropoiesis
Disclaimer: This information is for educational purposes only and is not medical advice. Research citations are provided for reference — consult your healthcare provider before starting any supplement regimen. Prices are estimates and may not reflect current retail pricing.