19/06/2026
Is something blocking your iron absorption? 💊
Medications and supplements can make a bigger difference than you think.
THINGS THAT REDUCE IRON ABSORPTION
💊 Antacids & PPIs
Reduce stomach acid needed to convert iron into its absorbable form.
🥛 Calcium supplements
Compete directly with iron for the same intestinal transporters.
💊 Levothyroxine (thyroid medication)
Iron can bind to it in the gut, reducing absorption of both.
🌿 Zinc & magnesium supplements
High doses of these minerals can interfere with iron uptake.
☕ Tea & coffee
Tannins can significantly reduce iron absorption when consumed around meals or when taking supplements.
🌾 Fibre supplements
May bind to iron and reduce absorption.
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THINGS THAT BOOST IRON ABSORPTION
🍊 Vitamin C
Converts non-haem iron to a more absorbable form — take them together.
⏰ Timing your supplements right
Leave at least 2 hours between iron and calcium, magnesium, zinc, antacids, or thyroid medication.
🥩 Include iron-rich foods
Red meat, poultry, fish, lentils, beans, tofu, spinach and fortified cereals can help maintain healthy iron stores.
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⚠️ Always speak to your doctor, nurse, or pharmacist before changing how you take your medications or supplements.
🩸 If you’re taking iron but your ferritin isn’t improving, it may not be what you’re taking — it could be when you’re taking it.