l carnitine liquid or capsule which is better JYM L-Carnitine L-Tartrate NOW Foods Sports Nutrition, L-Carnitine

This complex process means that conditions affecting the stomach or intestines can significantly impair B12 absorption, including pernicious anaemia, atrophic gastritis, previous gastric surgery, coeliac disease, Crohn's disease, and long-term use of certain medications (such as metformin, proton pump inhibitors, and H2 antagonists)

Data availability Data from this study are available under certain conditions

Subjects additionally took 500 mg NAC tablets 2x per day on the days that they did not receive the IV NAC

B12 Injection Dose for Adults with Special Conditions Adults with special conditions need careful B12 injection dosing