How best to take your vitamin is not new to the medical community but may be new to the public.
The cost and benefits of each route of administration and the ease of access must also be considered when one is given a choice of vitamin therapies. Intravenous dosing or intramuscular dosing will not be reviewed here as it is not an oral route and would be beyond the scope of this blog.
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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