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223: My iron won't go up even though I'm supplementing

Masterjohn Q&A Files Episode 223


Question: My iron won't go up even though I'm supplementing

The top things that I would think of would be riboflavin and copper, plus inhibitors of iron absorption. So generally speaking, plant foods are strong iron absorption inhibitors. Generally, you're going to have organic acids that promote iron absorption in proportion to the amount of potassium in the vegetables that you eat, although it's also the case that polyphenols will tend to correlate. And polyphenols inhibit iron absorption, so I'm of the opinion that you shouldn't eat plant foods at the meal that you're trying to get your iron in if you have trouble getting your iron up.

I would take the iron supplement with a carnivore meal. If you want to eat plant foods, eat them at some other point in the day.

This Q&A can also be found as part of a much longer episode, here:

083: Ask Me Anything About Nutrition, June 10, 2021

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DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice.

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The Masterjohn Q&A Files
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Chris Masterjohn, PhD