Ultra Preventive Teen EZ Swallow 180t by Douglas Labs is unique vitamin-mineral-trace element supplement designed for teenagers. The EZ swallow tablets are naturally coated with a vanilla flavor, and smaller in size than adult tablets. The EZ tablets provide over 30 vitamins, minerals, trace elements and other nutrients in bioavailable forms, such as Metafolin®, the bioactive form of folate. Metafolin ® or 5-MTHF is the naturally occurring, predominant form of folate commonly found in cells and is essential for overall health, as it participates as a cofactor in a reaction that involves the remethylation of homocysteine to methionine. Unlike synthetic folic acid, 5-MTHF can be used directly by the body, without the need for an additional conversion via the enzyme (5,10-methylenetetrahydrofolate reductase (MTHFR)). In certain populations, the body's ability to convert folic acid to 5-MTHF by use of this enzyme may be compromised due to genetic differences. Metafolin® contains only the S isomer of 5-MTHF and has been shown to be the only form of folate to be able to cross the blood-brain barrier.