What form of magnesium is best?
Magnesium is available in many forms, most of which are highly bioavailable. The exception is magnesium oxide, which has very low bioavailability (11). Magnesium citrate, chloride, lactate, and aspartate all have high bioavailability (11, 12), with citrate being the highest. Magnesium may have lower bioavailability when taken with calcium, but the combination is often recommended because taking both together helps to prevent excesses of one or the other. If you have any questions or comments regarding this article, please email dvdtlsn@bulknutrition.com. No part of this article may be reproduced in any form without the permission of David Tolson or Mike McCandless.