6 Supplements a Surgeon Warns NEVER to Take Together (Avoid These Mistakes!) (2026)

A Wake-Up Call for Your Morning Routine: Uncover the Surprising Truth About Supplements!

Imagine starting your day with a cup of tea or coffee, only to find out it might hinder the effectiveness of your iron supplements. Yes, you heard that right! It's time to shake up your supplement game and discover the hidden interactions that could be impacting your health.

Dr. Karan Rajan, an NHS surgeon, author, and podcast host, has shared some eye-opening insights. Get ready for a journey into the world of supplements, where we'll explore the dos and don'ts of combining certain nutrients.

But here's where it gets controversial...

The 6 Supplement Combinations to Avoid:

  1. Calcium and Iron: Dr. Rajan recommends keeping these two apart. Consume them "at least two hours apart" for optimal benefits. And don't forget to pair your iron with vitamin C for an extra boost!

  2. Zinc and Calcium: According to Dr. Rajan, "If you combine zinc with calcium, they compete for absorption in the gut." So, if you need both, space them out by a couple of hours.

  3. Zinc and Iron: You might think it's a good idea to take zinc and iron together, but Dr. Rajan says otherwise. Iron at higher concentrations can reduce zinc absorption. So, if your iron tablets contain 25mg or more, give them a few hours' gap from your zinc supplements.

  4. Green Tea or Green Tea Extract and Iron: Dr. Rajan advises against having green tea when taking iron supplements. And get this - excessive green tea consumption has been linked to iron deficiency anemia!

  5. Vitamin C and Vitamin B12: Here's a surprising twist! Vitamin C in high doses can interfere with vitamin B12 absorption. Dr. Rajan suggests taking vitamin C at least two hours after your vitamin B12 dose.

  6. Zinc and Magnesium: Our trusty zinc is back, but this time, it's competing with magnesium. Zinc in high doses (above 140mg per day) can battle magnesium for absorption. So, take them at different times of the day to avoid any potential issues.

And this is the part most people miss... these interactions are not just theoretical; they can significantly impact your health. So, it's crucial to be mindful of what you're taking and when.

Now, here's a thought-provoking question: Have you ever considered the potential interactions between your supplements? Share your experiences and thoughts in the comments! Let's spark a conversation and learn from each other's insights.

6 Supplements a Surgeon Warns NEVER to Take Together (Avoid These Mistakes!) (2026)
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