My <censored>olgist advises me to supplement using B12, good for red blood cell development. Evidently my choice of junk foods just doesn't cut the cheese; or whatever.
For me, the most important and most useful vitamins, supplements that help me improve my immunity and, in general, do everything to make my body feel in order, this is melatonin, which I order on the site https://www.vitaminexpress.org/uk/melatonin-supplements; and Vitamin D, Vitamin B, Omega 3 and Whey Protein. By the way, the function of melatonin is primarily to maintain the biological rhythm by promoting synchronization and stabilization of many processes.