Acetyl L-Carnitine 1000 Milligrams by NutraBio — Ingredients, Evidence & Safety

🟢 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 Vegetable Capsule(s) Serving Size

250 Servings

Non-Nutrient/Non-Botanical Product Type

100% Evidence Coverage

Supplement Facts — Evidence Check

Acetyl L-Carnitine

1000 mg

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

This product: 1000mg

Other Ingredients

Vegetable Capsule

Label Claims — Verification

❓ All Other

❓ Structure/Function

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

Target Groups

Vegetarian Adult (18 - 50 Years) Kosher No Allergies Gluten Free

Product Information

📋 Directions for Use

Suggested Use: As a dietary supplement, take 2 capsules 1 to 3 times daily, preferably on an empty stomach or as directed by a physician.

2 capsules - 1-3x daily - Empty Stomach

⚠️ Warnings & Precautions

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

If you are pregnant, breastfeeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC practitioner before using this product.

If you are Isotretinoin, and Valproic Acid you should consult a physician before using any L-Carnitine supplements. This supplement should be used by healthy adults only.

🧪 Formulation Notes

Zero Fillers or Excipients Inferior Ingredients Banned Substances / Added Sugars Proprietary Blends Hidden Ingredients

No fillers -No excipients - No additives

Free of Harmful Impurities

Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free: No added sugars, salt, preservatives, salicylates, or artificial color, flavor or fragrance.

Vegetarian

Allergen Free Non-GMO Gluten Free BSE/TSE Free

Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free & BSE/TSE Free:

Additional Information

Store in cool dry place

Since 1996

Manufactured in a GMP & FDA Inspected Facility

Pharmaceutical Grade - HPLC Labe Tested Potency

True Label Full Label Disclosure

Vegetable Capsule

Made in USA

23227-005 B20067-004

Made in a GMP & FDA Inspected Facility

Product Details

UPC / SKU 6 49908 23227 6

DSLD Entry Date 2015-09-25

Product Type Non-Nutrient/Non-Botanical

Form Capsule

Brand NutraBio

DSLD ID 50866

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

PubMed DOI Cochrane

A Carnitine supplements for people with chronic kidney disease requiring dialysis

Systematic Review The Cochrane database of systematic reviews 2022

PubMed DOI Cochrane

A Acetyl-L-carnitine for patients with hepatic encephalopathy

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

B Carnitine for fatigue in multiple sclerosis

Systematic Review The Cochrane database of systematic reviews 2012

PubMed DOI Cochrane

B L-carnitine for cognitive enhancement in people without cognitive impairment

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

B Carnitine for fatigue in multiple sclerosis

Systematic Review The Cochrane database of systematic reviews 2010

PubMed DOI Cochrane

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

View all evidence for Carnitine →