B12 deficiency is more common than most people realize, especially in people who follow a plant-based diet, take certain medications, or have absorption issues
ZVL is approved for adults aged 50 and older, while RZV is approved for adults aged 50 and older and immunocompromised individuals aged 18 to 49
While oral doses of glutathione are commonly used for supplementation, it is important to note that oral intake may not significantly raise blood or tissue levels of glutathione
Newborns have immature kidney function, and if supplemental creatine transfers through breast milk in meaningful amounts, there's a theoretical burden on developing renal systems
It reflects a different regulatory category with a different cost structure and a different evidence base, and it should be evaluated on those terms rather than as a bargain version of a brand