The main issue with zinc absorption is that it can be blocked by supplements such as Calcium, Iron, or Magnesium and it can interact with other medications such as antibiotics.
What is the best way to take my zinc supplements and are there certain supplements that should be avoided? Finally, how much zinc is too much?
Standard iron supplements contain 65 mg of elemental iron in a 325mg total tablet, that includes salts, additives, preservatives, coloring, coatings, etc. Iron supplement studies have shown overall poor absorption for all swallowed iron supplements from liquid to gummies to swallowed pills. Multiple daily dosing has become the standard of the industry to improve overall absorption which may possibly even worsen the absorption issue.
Under the tongue iron supplements can be taken every morning on an empty stomach by simply placing the tablet under the tongue prior to brushing your teeth. This can avoid the poor iron absorption and its associated intestinal side effects. In a recent study in New England Journal of Medicine, study participants were given standard swallowed high dose iron tablets two to three times a day, but the results of their blood studies showed only absorptions of 22.6 to 23.6mg per day. The medical community believes that under the tongue absorption is a more efficient method of absorption allowing similar if not better absorption than the current practice of multiple daily dosing of oral Irons.
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