Nigeria, Feb. 2 -- You must have heard this axiom at some point your life, "An apple a day keeps the doctor away." If you did not hear it as a child, you must have heard it as an adult. Even now, many can see their school teachers in their mind's eye restating this axiom. Its veracity was not in dispute then, and I do not think many have bothered to find out whether or not it is true. We somewhat believe that if we can eat at least an apple a day, then we will not have any business with the doctor.

The truth is that apple is one of the most consumed fruits around the world. It can be eaten raw, cooked, or juiced. Its reasonable affordability and wide availability, especially in regions with temperate climates, has made it a staple in man...