1 Product identity
Ingredient risk
1 ingredient to use with caution
L-Carnitine 500 Tabs
BrandON Optimum Nutrition→Non-Nutrient/Non-Botanical Tablet or Pill 8 ingredients 1 caution DSLD #57531Net contents: 60 Tablet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2016-03-24
2 Ingredients (8)
IngredientGroupSafety
Stearic AcidStearic Acid—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⚠️ Use with caution — restricted in some markets
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
3 Safety cross-reference
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Phosphorus — Generally Safe
⚠ Excess impairs calcium absorption
L-Carnitine — Generally Safe
⚠ Fishy body odor
⚠ TMAO concern
Silicon — Generally Safe
⚠ Very low toxicity
GLA — Limited Evidence
⚠ May lower seizure threshold
⚠ Borage oil: hepatotoxic unless PA-free
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
Sodium — Limited Evidence
⚠ Hypertension
⚠ Fluid retention
4 Label claims
• All Other
• Structure/Function
5 Data source
DSLD ID57531
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2016-03-24
6 More from ON Optimum Nutrition
View ON Optimum Nutrition Safety Scorecard → 88 products
Banana Cream PieBCAA 1000 Caps 1,000 mgBeta-Alanine Powder UnflavoredCLA 750 mgCLA 750 mgCreatine 2500 Caps7 Cite this page
Vancouver
Pkhakadze G. L-Carnitine 500 Tabs — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Aug 31]. Available from: https://supplement.ge/products/l-carnitine-500-tabs-57531/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG
Publisher: PHIG