Potatoes contain a lot of vitamin B6. One cup of baked potatoes provides 21% of your daily B6 needs. The most important main ingredient in potatoes is starch, which usually makes up 9 to 25 percent of it, so it is a useful substance for energy supply that is less affected by pests than cereals and is easier to grow. Export potatoes are offered to the world market not only raw, but also fried in standard packages. However, about 87% of the world’s exported potatoes are marketed in 2018 in raw form.