---
title: "When is the best time to take iron, and should you take it with food?"
url: https://nutritailor.co.uk/apps/learn/best-time-to-take-iron-and-should-you-take-it-with-food
slug: best-time-to-take-iron-and-should-you-take-it-with-food
pillar: Iron
publisher: "Nutri Tailor Health Reference Library"
editor: "Henry Bond"
publisher_makes: "Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance"
---

# When is the best time to take iron, and should you take it with food?

## Summary

Morning, on an empty stomach or with a small vitamin C rich snack, and every other day if you can manage it. Alternate days work because each dose raises hepcidin, the hormone that shuts the gut to iron for the rest of the day, and a 48 hour gap lets it fall again. Keep tea and coffee an hour away on the far side, calcium supplements two hours away, and milk, cheese and yoghurt out of the same meal. If a ferrous salt makes you feel sick, a light low calcium meal or a switch to bisglycinate beats stopping.

## Effective dose

Daily or alternate days for eight to twelve weeks, then a ferritin retest; a diagnosed deficiency continues three months after the blood count recovers, on the GP’s dose.

## Timing

Morning, on an empty stomach or with a small vitamin C rich snack, and every other day rather than every day if you can. The absorption studies found more iron taken up per tablet when doses were 48 hours apart, because the hormone hepcidin rises after each dose and closes the gut for the rest of the day. Keep tea and coffee an hour away on the far side, calcium supplements two hours away, and zinc at a different meal if you take a high dose of it.

## Interactions

An empty stomach absorbs more but upsets more. If a ferrous salt makes you feel sick, taking it with a light low calcium meal is better than stopping, and switching to a gentle form such as bisglycinate lets you take it with breakfast without losing much. Not with milk, cheese, yoghurt, tea or coffee.

## Practical framework

From the Nutri Tailor range: [iron bisglycinate with vitamin C](/products/iron-vitamin-c), 15 mg of iron with 400 mg of vitamin C, all made in the UK. This is a summary of published research, not personal health advice. Talk to your GP or a registered nutritional therapist before changing what you take, especially if you are pregnant, have a diagnosed condition or are under ongoing care.

## Common misconceptions

That the hour matters more than the habit: for iron the daily total and the weeks of use decide the result. That an empty stomach is always better: for iron the answer is above, and comfort keeps people taking it.

## Sources

1. NIH Office of Dietary Supplements (2025). Iron: Fact Sheet for Health Professionals. National Institutes of Health, Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/.
2. National Institute for Health and Care Excellence (NICE, UK government) (2024). Anaemia - iron deficiency: Clinical Knowledge Summary. NICE Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/anaemia-iron-deficiency/.


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Published by Nutri Tailor, maker of Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance to help you reach your health goals. Details: https://nutritailor.co.uk/apps/learn/nutri365