PlainVitamins

L-Carnitine 250 mg

by Windmill · capsule · 50 capsules

  • On the market (NIH)
  • UPC 0 35046 00454 5
  • DSLD label 333555
  • Serving 1 capsule
  • 50 servings

L-Carnitine 250 mg by Windmill lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 110 mg of calcium, 55 mg of phosphorus and 250 mg of L-carnitine. Its current label entered the NIH Dietary Supplement Label Database on July 24, 2025.

What is in L-Carnitine 250 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).

L-Carnitine 250 mg: Supplement Facts rows against the market (DSLD label 333555, January 2026 release)
IngredientAmount% DVAmong products listing it
Calciumas Tricalcium Phosphate110 mg8%Calcium in L-Carnitine 250 mg against 17,831 products110 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg110 mg

51% of 17,831 products listing calcium give more (median 115 mg).

Phosphorusas Tricalcium Phosphate55 mg4%Phosphorus in L-Carnitine 250 mg against 3,786 products55 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg55 mg

67% of 3,786 products listing phosphorus give more (median 90 mg).

L-Carnitineas L-Carnitine-L-Tartrate250 mgL-Carnitine in L-Carnitine 250 mg against 1,338 products250 mg per serving; the middle half of products list 110.5 mg to 1,000 mg, the median 500 mg.250 mg

61% of 1,338 products listing L-carnitine give more (median 500 mg).

Source: NIH ODS Dietary Supplement Label Database, label 333555 (entered July 24, 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 one serving 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.

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
Directions: Take 1 capsule daily as a dietary supplement or as directed by a healthcare professional.
Warnings
Keep out of reach of children.
Do not purchase if seal is broken.
Allergens and what it does not contain
No sugar, wheat, soy, milk, artificial colors, flavors or preservatives Non GMO - Gluten free
Storage
Protect from heat, light & moisture. Store in a cool, dry place.

Source: label statements in DSLD label 333555.

What else is on the label?

Other ingredients: Bovine Gelatin, Microcrystalline Cellulose, Magnesium Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the U.S.A. from globally sourced ingredients.

How many labels does L-Carnitine 250 mg have?

7 labels are on file under this name since April 26, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 333555 (current) Entered July 24, 2025 · on the market · 50 capsules · UPC 0 35046 00454 5
  2. Label 231255 Entered July 23, 2020 · off the market April 17, 2024 · 50 capsules · UPC 0 35046 00454 5
  3. Label 213523 Entered February 26, 2020 · off the market July 1, 2020 · 50 capsules · UPC 0 35046 00454 5
  4. Label 180930 Entered September 21, 2018 · off the market April 23, 2019 · 50 capsules · UPC 0 35046 00454 5
  5. Label 71537 Entered March 24, 2017 · off the market February 27, 2018 · 50 capsules · UPC 0 35046 00454 5
  6. Label 46592 Entered June 25, 2015 · off the market February 10, 2017 · 50 capsules · UPC 0 35046 00454 5
  7. Label 7353 Entered April 26, 2012 · off the market June 1, 2015 · 50 capsules · UPC 0 35046 00454 5

DSLD also links this label to: L-Carnitine 250 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 Windmill Health Products (distributor), West Caldwell, NJ. All Windmill products.

Where next?