🟢 100/100

This product looks safe

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

Product Label

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Label Data

2 Caplet(s) Serving Size
90 Servings
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

1000 mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 1000mg

Other Ingredients

Cellulose Stearic Acid Polyvinyl Alcohol Silica Croscarmellose Contains <2% of

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (88% of products) Nutrient (18% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Pre & post workout For best results, take two (2) caplets twice daily with meals.

Directions: For adults, take two (2) caplets twice daily, preferably with meals. As a reminder, discuss the supplements and medications you take with your health care providers.

⚠️ Warnings & Precautions

As a reminder, discuss the supplements and medications you take with your health care providers. Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Tamper Resistant: Do not use if seal under cap is broken or missing.

🧪 Formulation Notes

MET-Rx L-Carnitine 1000 mg per serving

MET-Rx L-Carnitine is one of the most versatile supplements available - perfect for runners, weightlifters, athletes and anyone trying to get into better shape.

Carnitine helps the body convert food to energy - providing support for endurance exercise (aerobic) and during recovery from high intensity activities such as weightlifting and sprinting (anaerobic).

L-Carnitine 1000mg per serving

Additional Information

Hard training can take a toll on your body - decreasing recovery and halting your progress in the gym dead in its tracks.

Supplementing with our formula helps to maximize muscle carnitine concentrations at the gym or before athletic competition.

Store at room temperature and avoid excessive heat.

Exercise recovery

Helps the body convert food to energy Promotes recovery from high intensity exercise Supports endurance exercise

1689 06F B76558 Label No 14-10364

Product Details

UPC / SKU 7 86560 01689 6
DSLD Entry Date 2018-10-25
Product Type Non-Nutrient/Non-Botanical
Form Other (e.g. tea bag)
Brand MET-Rx
DSLD ID 181860
Data Updated 2026-04-11

Research Evidence

80 Research Sources
49 Avg Quality Score
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
A Carnitine supplements for people with chronic kidney disease requiring dialysis
Systematic Review The Cochrane database of systematic reviews 2022
A Acetyl-L-carnitine for patients with hepatic encephalopathy
Meta Analysis The Cochrane database of systematic reviews 2019
A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy
Meta Analysis The Cochrane database of systematic reviews 2019
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2012
B L-carnitine for cognitive enhancement in people without cognitive impairment
Meta Analysis The Cochrane database of systematic reviews 2017
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2010
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
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
B Efficacy and Effectiveness of Carnitine Supplementation for Cancer-Related Fatigue: A Systematic Literature Review and Meta-Analysis
Meta Analysis Nutrients 2017
View all evidence for Carnitine →

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