"Questions to the doctor": spring vitamin deficiency and how to deal with him
Is there any vitamin deficiency? “Of course, even if you ask a little-old schoolchild, he will tell you about the history of medieval campaigns, and how people died during these long crossings, including on ships through the oceans and the sea-then only a million people in the aggregate died (acute deficiency of vitamin C). Today, of course, there is no such global problem, because people have learned to synthesize vitamins and no longer needs to, for example, carry lemons with them.