If you mean harder as in muscles, protein and complex carbohydrates usually help build muscle but exercise is the most important. If you mean harder as in an erect penis, there is no food that will help that. General good health is the only thing that can aid in an erection.
The best thing to eat for a good diet will have to be fish. But not the seafood though
The best rice to eat that benefits your health would be brown rice. I think it is a little harder than white rice, but it is actually really good for you.
they are not tasty for everyone
Tex-Mex!
BRAINS......
Chocolate.
Chicken soup.
Some eggs and bacon
Harder is an adjective; the comparative form of hard (harder, hardest).
I don't know what you mean by harder snakes. Most snakes eat mice.
No, but that is the best thing you can do for your self at that time.
Harder Than the Best was created in 1979.