In many cases, though, patients' disorders prevent them from absorbing the vitamin unless it is administered by injection
Naturally occurring vitamin D is found in only a limited number of foods, mainly animal-based sources such as cod liver oil, fatty and lean fish, meat, eggs, poultry, and dairy products, while plant-based sources include mushrooms, yeast, phytoplankton, and plants containing ergosterol that can be converted into ergocalciferol (vitamin D 2 )
The review further compiles major bioactive compounds and their preclinical evidence suggests roles in immunity, anticancer potential, metabolic health, and vitamin D supplementation
Patients should also disclose any medications or supplements they are currently taking to avoid potential interactions
The benzyl alcohol preservative helps reduce microbial growth after opening, but it does not guarantee sterility
KPV (10 mg per vial) KPV is a tripeptide (Lys-Pro-Val) and the C-terminal fragment of alpha-MSH