5-MTHF 1 mg
by Thorne · capsule · 60 capsules
- On the market (NIH)
- UPC 6 93749 12901 1
- DSLD label 337850
- Serving 1 capsule
- 60 servings
5-MTHF 1 mg by Thorne lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 1.7 mg DFE of folate. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2025.
What is in 5-MTHF 1 mg?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Folate | 1.7 mg DFE | 425% | |
| Extrafolate-Sas L-5-Methyltetrahydrofolate | 1 mg |
Source: NIH ODS Dietary Supplement Label Database, label 337850 (entered September 25, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Folic Acid 800GNC · off the market same ingredients
- Folic AcidHealth Resources · off the market same ingredients
- Folic Acid 800 mcgVitaCeutical Labs same ingredients
- Natural Folic Acid 400 mcgWindmill · off the market same ingredients
- Folic Acid 800 mcgWindmill · off the market same ingredients
- Natural Folic Acid 400 mcgEqualine same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Suggested use: Take 1 capsule one to three times daily or as recommended by your healthcare practitioner.
- Warnings
- Tamper evident: Use only if bottle is sealed.
- If pregnant, consult your health-care practitioner before using this product.
- Allergens and what it does not contain
- Gluten free
- Storage
- Store tightly sealed in a cool, dry place.
Source: label statements in DSLD label 337850.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Hypromellose, Leucine, Silicon Dioxide.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Manufactured in the USA using US & imported ingredients.
How many labels does 5-MTHF 1 mg have?
5 labels are on file under this name since September 21, 2018: other sizes, label designs and reformulations. The current one leads this page.
- Label 337850 (current) Entered September 25, 2025 · on the market · 60 capsules · UPC 6 93749 12901 1
- Label 284181 Entered February 21, 2023 · on the market · 60 capsules · UPC 6 93749 12901 1
- Label 204219 Entered June 24, 2019 · off the market November 30, 2022 · 60 capsules · UPC 6 93749 12901 1
- Label 181732 Entered November 21, 2018 · off the market March 7, 2018 · 60 capsules · UPC 6 93749 12901 1
- Label 181733 Entered September 21, 2018 · off the market November 6, 2018 · 60 capsules · UPC 6 93749 12901 1
DSLD also links this label to: 5-MTHF 1 mg (image difference, same product), 5-MTHF 1 mg (image difference, same product), 5-MTHF 1 mg (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Thorne Research, Inc. (manufacturer). All Thorne products.