The FDA requires food manufacturers to include the following information for labeling the food by the nutrition values:
1. vitamin A
2. vitamin C
3. calcium and iron.
Sometimes you'll see other important vitamins and minerals listed on the label, especially if the product contains significant amounts of those vitamins and minerals. Some food labels also state which country the food came from, whether the food is organic and certain health claims.
As people are always dying and babies are always being born so doctors don’t know the exact figure of the population, just an estimate. hope this helps x
