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Thorne Research 5-MTHF

$24.00

Potency and Size

60 capsules

Thorne Research 5-MTHF is a powerhouse of vitamin B9 (also called folate or folic acid). It’s perfect for pregnant women or anyone with low vitamin B!

  • Essential for pregnancy and vitamin B deficiency*
  • Supports a bright mood and better brain health* 
  • Increases health of the heart and nervous system*

Thorne Research 5-MTHF

Struggling to keep your vitamin B levels within the normal range? Here’s a helpful solution that’s easy on your body! As many as three in five Americans have a genetic disorder that makes it difficult for their body to naturally convert folic acid into 5-MTHF. Thorne Research 5-MTHF does all of the work for you to help you overcome a vitamin B deficiency!

What is Thorne Research 5-MTHF? It’s vitamin B9! This essential B vitamin is the active form of folate. It’s crucial for a healthy pregnancy and fetal growth, but this supplement isn’t just for expectant mothers.*


  • Pregnancy: Mamas and expectant mothers, keep you and your baby nourished during pregnancy with a folic acid supplement!* According to the CDC and the American College of Obstetricians and Gynecologists, pregnant women should take a prenatal vitamin that includes folic acid.*


  • Infants: Plenty of folic acid is key to a healthy pregnancy and baby! A maternal vitamin B deficiency can contribute to low birth weight or neural defects. Keep your baby healthy, nourished, and developmentally on track with a folic acid supplement like Thorne Research 5-MTHF!*


  • Mood: Folate plays a role in the production of melatonin (the sleep hormone), serotonin (a mood-boosting hormone), dopamine (the pleasure hormone), epinephrine (adrenaline), norepinephrine (the fight or flight hormone).*


  • Brain: Because folate helps produce essential neurotransmitters, it also protects the brain against cognitive decline.*


  • Heart: B vitamins, including folate/folic acid, participate in the metabolism of homocysteine, which may reduce your risk of cardiovascular disease or stroke.*


  • Nerves: Support healthy nerves with a folate supplement like Thorne Research 5-MTHF! In particular, a regular vitamin B supplement may encourage healthier nerve tissues and repair.*


Thorne Research 5-MTHF is recommended for pregnant women, especially during the first trimester, but is also perfect for any individual with low vitamin B levels. Want to make sure this is the best vitamin B supplement for you? Our certified Wellness Consultants are here to provide you with personalized support and supplement recommendations to suit you and your family! Get in touch!
Suggested Use:

  • 1 mg: Take 1 capsule one to three times daily or as recommended by your health professional.

  • 5 mg: Take 1 capsule one to two times daily or as recommended by your health professional.


Cautions: Keep out of the reach of children. Consult a physician before taking this product if you are pregnant, nursing, taking any medications, or have a medical condition. 5-methyltetrahydrofolate (5-MTHF) supplementation is not recommended concurrent with methotrexate cancer therapy, as it can interfere with methotrexate's anti-neoplastic activity; however, this folate source has not been shown to interfere with the anti-inflammatory activity of methotrexate. An individual taking methotrexate for psoriasis or rheumatoid arthritis can safely take a supplement containing folate.

Allergy Warning: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

Questions? We’ve got answers! Reach out to our support team for help.

Serving Size: 1 Capsule

Servings Per Container: 60

Ingredients: Folate (as L-5-Methyltetrahydrofolate†)

Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide
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