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Iron
Essential for oxygen transport in blood.
Summary
Recommended daily intake: 18 mg. Upper limit: 45 mg. Natural sources include Red meat, Spinach, Lentils.
How much Iron should you take daily?
Recommended Daily Allowance
18 mg
Upper Limit
45 mg
Evidence Level 4
Which foods contain it?
Red meatSpinachLentils
FAQ
What is Iron commonly used for?
Iron is commonly discussed in relation to Oxygen transport, Energy production, Immune function.
How much Iron should adults take per day?
The current reference on this page lists an adult daily intake of 18 mg, with an upper limit of 45 mg.
What side effects or precautions matter for Iron?
Men and postmenopausal women need only 8 mg/day. Take with vitamin C for better absorption. If you have medical conditions or take prescription drugs, check with a clinician first.
Which foods naturally contain Iron?
Common food sources include Red meat, Spinach, Lentils. Food sources can be a useful baseline before deciding on long-term supplementation.
Does Iron have an upper intake limit?
Iron does have a listed upper limit on this page: 45 mg. Staying far above that range over time may increase the chance of adverse effects.
Data Sources
NIH ODSTFDA DRIHealth CanadaDrugBankEFSA
Information on this page is sourced from the above official institutions and cross-verified.
This page is for nutritional science information only, not product promotion or medical advice. Consult a healthcare professional for health concerns.