Vitamin & Mineral Interaction Chart: What Not to Take Together

Vitamin & Mineral Interaction Chart: What Not to Take Together

Last updated June 2026 · Perla Store Editorial Team · Prices in CAD

Understanding how vitamins and minerals interact is crucial for optimizing your health and ensuring your supplements work effectively. This page provides a practical chart of common supplement interactions, helping you make informed decisions about spacing them apart. Remember, this information is framed for a Canadian audience and prices are in CAD.

Always consult with a pharmacist or healthcare professional before making changes to your supplement routine, and be aware of Health Canada's guidelines to ensure safe and effective use of supplements.

What not to take together

Pair Interaction What to do
Calcium + Iron Calcium can inhibit iron absorption. Take at least 2 hours apart.
Zinc + Copper High zinc intake can lead to copper deficiency. Consider a balanced supplement.
Zinc + Iron Compete for absorption. Space doses by at least 2 hours.
Magnesium + some meds Can interfere with absorption of certain medications. Consult with a pharmacist.
Fish oil + blood thinners May increase bleeding risk. Ask your doctor before use.
Iron + coffee/tea Reduces iron absorption. Avoid taking together; wait 1 hour.

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Frequently asked questions

Can I take calcium and iron supplements at the same time?

It's best to take calcium and iron supplements at least 2 hours apart to maximize absorption.

Why should I be cautious about taking zinc and copper together?

High levels of zinc can interfere with copper absorption, potentially leading to a deficiency. Consider a balanced supplement that includes both minerals.

What should I do if I'm on medication and want to take magnesium?

Magnesium can affect the absorption of certain medications. Consult with a pharmacist to ensure safe use.

Is it safe to take fish oil if I'm on blood thinners?

Fish oil may increase the risk of bleeding when taken with blood thinners. It's important to consult your doctor before combining them.

How does coffee or tea affect iron absorption?

Coffee and tea contain compounds that can inhibit the absorption of iron. To improve iron absorption, avoid consuming these beverages with iron supplements.

For general information only and not medical advice. In Canada, natural health products should carry an NPN (Natural Product Number) or DIN-HM. Talk to a healthcare professional or pharmacist before starting a supplement, especially if pregnant, nursing, taking medication or managing a health condition.