PlainVitamins

L-Carnitine 500 mg

by Swanson · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 0 87614 11001 1
  • DSLD label 337677
  • Serving 1 tablet
  • 100 servings

L-Carnitine 500 mg by Swanson lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 190 mg of calcium and 500 mg of L-carnitine. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2025.

What is in L-Carnitine 500 mg?

Each row as the label prints it, per serving of 1 tablet. 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 500 mg: Supplement Facts rows against the market (DSLD label 337677, January 2026 release)
IngredientAmount% DVAmong products listing it
Calcium190 mg15%Calcium in L-Carnitine 500 mg against 17,831 products190 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg190 mg

Higher than 63% of 17,831 products listing calcium (median 115 mg).

L-CarnitineBase500 mgL-Carnitine in L-Carnitine 500 mg against 1,338 products500 mg per serving; the middle half of products list 110.5 mg to 1,000 mg, the median 500 mg.500 mg

38% of 1,338 products listing L-carnitine give more (median 500 mg).

Source: NIH ODS Dietary Supplement Label Database, label 337677 (entered August 22, 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
Suggested use: As a dietary supplement, take one tablet per day with water one to two hours before a meal or as recommended by your healthcare provider.
Warnings
Warning: For adults only. Keep out of reach of children.
Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.
Do not use if seal is broken.
Storage
Note: This hygroscopic material readily absorbs moisture. Store in original bottle. Keep lid tightly sealed.
Store in a cool, dry place.

Source: label statements in DSLD label 337677.

What else is on the label?

Other ingredients: Calcium Carbonate, Microcrystalline Cellulose, Stearic Acid, Magnesium Stearate, Water, Purified, Hydroxypropyl Methylcellulose, Glycerin, Silica.

How many labels does L-Carnitine 500 mg have?

4 labels are on file under this name since January 7, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 337677 (current) Entered August 22, 2025 · on the market · 100 tablets · UPC 0 87614 11001 1
  2. Label 308641 Entered March 22, 2024 · off the market January 24, 2024 · 100 tablets · UPC 0 87614 11001 1
  3. Label 266882 Entered June 16, 2022 · off the market June 18, 2025 · 100 tablets · UPC 0 87614 11001 1
  4. Label 184430 Entered January 7, 2019 · off the market March 26, 2021 · 100 tablets · UPC 0 87614 11001 1

DSLD also links this label to: L-Carnitine 500 mg (image difference, same product), L-Carnitine 500 mg (package size difference, same product), L-Carnitine 500 mg (package size 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 Swanson Health Products (distributor), Fargo, ND. All Swanson products.

Where next?