L-Carnitine 500 mg - Bioavailability Study

Bioavailability Study

L-Carnitine is a non-essential amino acid used to maintain overall good health by facilitating the transfer of fatty acid groups into the mitochondrial membrane for cellular energy production.*

Three healthy adult volunteers, 22 to 55 years old, participated in a clinical trial to study the bioavailability of L-Carnitine 500 mg, a dietary supplement from NOW® (# 0072). Total serum carnitine was measured at baseline, and again at 1, 3, and 6 hours following oral administration of 2 capsules providing 1 gram of L-Carnitine from carnitine tartrate.

Results

Average serum carnitine increased gradually over the course of the study, beginning with the 1–hour measurement, which was 13% above the baseline level. Six hours after supplementation, average carnitine level reached 55% above the baseline concentration.The study confirms the exceptional bioavailability of dietary supplement L-Carnitine by NOW®.

This study supports the exceptional bioavailability of NOW® L-Carnitine 500 mg.

 

Line graph showing increase in total serum carnitine levels over 6 hours after a single 1,000 mg oral dose of L-Carnitine (as Carnitine Tartrate, NOW Foods) in healthy adults. Levels rise from approximately 60 micromol/L at baseline to over 90 micromol/L at 6 hours.
Time, hours Total Serum Carnitine, micromol/L 0 58.0 1 67.0 2 75.0 3 83.0 4 85.0 5 87.0 6 92.0

 

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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