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Boosting Immune Function Chronic illnesses can also weaken the immune system, making it more difficult for the body to fight off infections and other diseases

Duration of effects : 3 to 7 days (some nutrients, like B12, can last longer) Common uses : Boosting energy, supporting immunity, enhancing skin health, or improving mood How it works : Because vitamins are absorbed directly, the body uses what it needs right away, and stores some in tissues for gradual use

High B12 often indicates underlying pathology including hepatic disease, renal impairment, or myeloproliferative disorders

10.1016/j.bone.2024.117383 106 JiY.LuoJ.ZengJ.FangY.LiuR.LuanF.et al (2021)

Johns wort can negatively interact with certain medications, including antidepressants and birth control pills, so its important to discuss its use with a doctor

Wang et al., 2012)