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[10] Enzyme-inducing anticonvulsants such as phenytoin, carbamazepine, and phenobarbital, as well as rifampicin, accelerate hepatic catabolism of vitamin D, shortening its half-life and potentially necessitating more frequent or higher intramuscular doses to sustain target 25-hydroxyvitamin D levels
Curious about NAD vs B12 shots
Metabolism gets support that helps overall wellness: While vitamin B12 shots for weight loss are not magic, healthy B12 levels do support metabolism, and many people feel better during workouts and recover more effectively, which supports fitness goals
The one thing not to do is stop or change a prescribed course suddenly on your own, especially where the cause is non-dietary and the treatment is lifelong
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![L-Carnitine contents in foods (modified from [70])](https://www.researchgate.net/publication/377831689/figure/tbl3/AS:11431281221192122@1706708449981/L-Carnitine-contents-in-foods-modified-from-70.png)
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