Folate (Vitamin B9 / 5-MTHF)

Folate (5-MTHF) is the biologically active form of vitamin B9, also referred to as L-methylfolate or levomefolic acid. Unlike folic acid, which requires conversion by the enzyme MTHFR in the body, 5-MTHF is already in its active coenzyme form and can be used directly for methylation, DNA synthesis, and homocysteine regulation. This makes it particularly relevant for individuals with genetic polymorphisms in the MTHFR gene, which can impair the conversion of folic acid.

Brands choose 5-MTHF over folic acid for its superior bioavailability and suitability across a broader population. It is one of the most familiar and commercially understood B-vitamin actives across EU and US markets, especially in prenatal, maternal health, and energy-support formulations. Under EU Regulation 432/2012, folate carries eight authorised health claims, making it a versatile ingredient for gummy and sachet products targeting pregnancy support, energy metabolism, and nervous system function.

Origin and history

Folate is a water-soluble B vitamin found naturally in leafy green vegetables, legumes, and liver. The synthetic form, folic acid, was first developed in the 1940s and has been used for decades in food fortification and supplements. However, research in the late 1990s and early 2000s revealed that a significant portion of the population carries genetic variants in the MTHFR gene that reduce the efficiency of converting folic acid into its active form, 5-MTHF.

The development of stabilised 5-MTHF as a supplement ingredient began in the early 2000s, with calcium and glucosamine salt forms being commercialised for use in food supplements. Today, 5-MTHF is produced industrially through chemical synthesis or enzymatic conversion, yielding a pure, stabilised crystalline powder suitable for use in gummies, sachets, and other supplement formats. Its adoption has grown steadily, particularly in prenatal and personalised nutrition products.

Scientific overview

Folate functions as a coenzyme in one-carbon metabolism, which is essential for DNA synthesis, repair, and methylation. It acts as a methyl donor in the conversion of homocysteine to methionine, a process that is critical for cardiovascular health and nervous system function. 5-MTHF, as the active form, bypasses the MTHFR enzyme step and enters directly into the methylation cycle, making it more bioavailable for individuals with reduced enzyme activity.

The bioavailability of 5-MTHF is generally considered superior to folic acid, particularly in populations with MTHFR polymorphisms. Studies show that 5-MTHF is absorbed efficiently and raises serum folate levels comparably to or better than equivalent doses of folic acid. The calcium salt form is the most common in supplements, offering good stability and solubility for gummy manufacturing.

From a manufacturing perspective, 5-MTHF is heat-sensitive and should be handled with care during gummy processing to avoid degradation. It is soluble in water and can be incorporated into gummy formulations without significant taste issues at typical doses. The cost-per-mg is higher than folic acid, reflecting the more complex production process and higher purity requirements. DAT reviews formulation stability per project to confirm final shelf-life claims.

Folate (5-MTHF) is a strong positioning ingredient for gummy products targeting prenatal and maternal health, energy metabolism, and nervous system support. Its eight authorised EU health claims provide a robust foundation for pack copy and marketing, particularly for brands targeting women of childbearing age, athletes, and individuals seeking cognitive or cardiovascular support. The ingredient is one of the most familiar and commercially understood B-vitamin actives across EU and US markets, making it a trusted choice for brand founders.

In gummy manufacturing, 5-MTHF presents manageable formulation tradeoffs. It is heat-sensitive, so processing temperatures must be controlled to preserve potency. It is soluble in water and has a neutral taste at supplement doses, which simplifies flavour masking. The higher cost compared to folic acid is offset by the premium positioning and broader consumer appeal. DAT confirms the final formulation and stability profile per project.

For pack copy, brands should use EFSA-authorised claim wording verbatim for EU markets. Claims such as "Folate contributes to normal maternal tissue growth during pregnancy" and "Folate contributes to the reduction of tiredness and fatigue" are directly applicable. No disease claims are permitted. Certification promises (vegan, kosher, halal) and shelf-life claims are confirmed per project and batch documentation. DAT reviews all claim wording per project and market.