l carnitine vs nac acetyl Acetylcarnitine natural dietary supplement 100% pure vegetable capsules. N-Acetyl L-Carnitine – Dr. Aucamp Boost Energy & Brain Power

Having said, that, Vitamin B12 is also not a standalone solution for people who are obese, and there are reasons to support this theory

The overall discontinuation rate was 4.3% to 7.1% (Jastreboff et al., NEJM 2022)

Optimized volume/price ratio, extended autonomy (several weeks at typical 250-500 mcg dose), final concentration adjustable to protocol (5 mg/ml with 2 ml bacteriostatic, or 2.5 mg/ml with 4 ml for finer dosing)

Truly-biocompatible gold catalysis enables vivo-orthogonal intra-CNS release of anxiolytics

For this reason, despite the fact that the body produces it naturally, athletes have a greater need for l-carnitine than others