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081: Is it safe to take creatine when nursing?

Masterjohn Q&A Files Episode 81


If you felt fatigued and you took the creatine and all of a sudden that started reversing, then you either felt fatigued because you had low creatine synthesis, or you felt fatigued because you had a methylation problem. Those aren't mutually exclusive. If you're not methylating well, the most sensitive thing that will happen is you'll synthesize less creatine. But I mean it could have gone beyond creatine. It could have been that you're synthesizing less creatine, and you're not regulating your dopamine properly and things like that.

In terms of safety in breastfeeding, I don't think there's any evidence one way or another. It's probably safe because you could get this from meat, and there's no evidence of harm. But if you wanted to be hyper careful, I don't think you need to do this, but if you wanted to be like super, super careful, what I would do is divide the 5 grams over three or four meals evenly on the basis that there are very, very trace amounts of byproducts of high-dose creatine. Five grams will cause extraordinarily tiny amounts of toxins that appear in the urine. I mean, not toxins at the level that we're talking about, but I doubt it's a risk. But if you wanted to be hyper careful, divide the dose up evenly. 

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

Harnessing the Power of Nutrients
Recording and Transcript of Ask Me Anything About Nutrition | March 4, 2019
Watch now (157 min) | On March 4, you joined me in a live Zoom meeting to ask me anything about nutrition, and here’s the full recording! We talk about things like: How much spinach, broccoli, and kale is too much? Can frozen vegetables be trusted for their folate? Do cooked legumes lose folate when frozen…
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The Masterjohn Q&A Files
We use Zoom, a video chatting software, in webinar mode. You can ask your question anonymously in text, but you can also ask it publicly, and you can even get "on stage" and share your mic, web cam, or screen with everyone.
Chris Masterjohn, PhD