l carnitine is it a vitamin b L-Carnitine 1500 mg with Carnitine by NutraBio Country Life Acetyl L-Carnitine Caps

Verify GMP (Good Manufacturing Practice) and NSF or similar third-party certifications

For treatment duration, the coefficient was 0.23 SMD units per additional week (95% CI 0.15 to 0.61

Oxford, UK Sterne JAC, Savovi J, Page MJ et al (2019) RoB 2: a revised tool for assessing risk of bias in randomised trials

If you are trying to figure out how much L-Carnitine per day your body really needs, you are not alone

doi: 10.1002/jcsm.12805 60

Because muscle L-Carnitine levels help determine the exercise capacity of muscles, supplementing hard-working animals can improve energy supply, increase the use of fat as fuel and reduce reliance on glycogen