In order to ration food should the US Government issue limits on purchases of rice, wheat, milk, sugar, etc ?

We have to look at the reality that there are food shortages and the world is in a drought . Agriculture is being hit hard by global warming conditions currently taking place. By the ways this can also nearly cut the obesity rate by up to 80%. Which in turn reduces cases of heart disease, strokes, and other major illnesses. It is a good snowball effect that benefits all equally.