Recommendations on magnesium supplements and dosage

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By Chris Masterjohn, PhD and Chris Masterjohn. Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio is streamed directly from their servers. Hit the Subscribe button to track updates in Player FM, or paste the feed URL into other podcast apps.

Question: "What are your recommendations on magnesium supplements and dosage?”

My opinion is that most people shouldn't be supplementing with high doses of magnesium. I think if you're going to supplement with more than 400 milligrams a day, you should be testing your magnesium status, and you should be making decisions on that. I think there's way too many people throwing really high doses of magnesium into their system.

The topical stuff makes sense if you're absorbing poorly, but hey, maybe you're absorbing poorly because you don't need it, and so I think you really have to judge it against real metrics of results.

So, in terms of types, I would not recommend magnesium oxide for anything. It's poorly absorbed, so maybe you could argue that magnesium oxide is going to help act as a laxative better, but that's not bowel function, that's pharmacologically modulating your bowel transit time. So, I don't think it makes sense to deliberately take a poorly absorbed magnesium to have that effect.

The good sources of magnesium are: magnesium citrate is okay, glycinate is okay, malate is okay, across the board, I genuinely don't believe that the form is that important. It's just that oxides of minerals including magnesium are generally poorly absorbed. There isn’t much difference in the other forms. As always tailor it to the individual. I wouldn't give blanket recommendations there.

This Q&A can also be found as part of a much longer episode, here:https://chrismasterjohnphd.com/podcast/2019/02/09/ask-anything-nutrition-feb-1-2019/

If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a

312 episodes