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L-Carnitine 250 mg

product on market Capsule Source Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-carnitine is involved in the transport of fatty acids into the mitochondria to be burned for energy. There is moderate evidence suggesting it may support metabolic function and exercise recovery. Research indicates it is generally well-tolerated when taken at this dosage.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for L-Carnitine 250 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

250 mg
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)

Other Ingredients

Gelatin Dibasic Calcium Phosphate Silicon Dioxide, Colloidal Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: 1 capsule 1 to 4 times daily.

Warnings & Precautions

CAUTION: If you are pregnant, may become pregnant, or are breastfeeding, consult your health care professional before using this product.

Keep out of the reach of children.

Do not use if either tamper-evident seal is broken or missing.

Formulation Notes

HYPOALLERGENIC: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Additional Information

METABOLIC ENERGY

L-Carnitine is important for providing energy to muscles, and has been described as a "conditionally essential" nutrient for humans. 95% of all carnitine stores in the body are found in muscle tissue. It carries fatty acids into the mitochondria of each cell, where they are metabolized to produce ATP, the body's prime energy fuel.

STORE IN A COOL, DRY PLACE.

SN2008 REV K063

Metadata

Product Details

UPC / SKU0 21078 02008 0
DSLD Entry Date2012-08-24
Product TypeNon-Nutrient/Non-Botanical
FormCapsule
DSLD ID12201
Data Updated2026-04-11
Research

Research Evidence

80
Research Sources
49
Avg Quality
43
Rct
14
Clinical Trial
11
Systematic Review
9
Meta Analysis
2
Regulatory Source
A Propionyl-L-carnitine for intermittent claudication
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Carnitine supplements for people with chronic kidney disease requiring dialysis
Systematic Review The Cochrane database of systematic reviews 2022 PubMed DOI
A Acetyl-L-carnitine for patients with hepatic encephalopathy
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2012 PubMed DOI
B L-carnitine for cognitive enhancement in people without cognitive impairment
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2010 PubMed DOI
B Systematic Review and Meta-analysis on Effect of Carnitine, Coenzyme Q10 and Selenium on Pregnancy and Semen Parameters in Couples With Idiopathic Male Infertility
Meta Analysis Urology 2022 PubMed DOI
B Effects of Carnitine and Coenzyme Q10 on Sperm Quality and Pregnancy Rates in Men with Unexplained Infertility: A Systematic Review and Network Meta-Analysis
Systematic Review Reproductive sciences (Thousand Oaks, Calif.) 2025 PubMed DOI
B Efficacy and Effectiveness of Carnitine Supplementation for Cancer-Related Fatigue: A Systematic Literature Review and Meta-Analysis
Meta Analysis Nutrients 2017 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.