Most interesting Donuel.
I have a theory that one can feel hungry, but underneath the body qualifies that by urging one to seek certain foods which it needs at that time. For instance, when in the supermarket, I might suddenly want some oily fish, or some citrus fruit. I've always tried to obey this 'urge' from the subconscious, and thus manage to keep my vitamins and minerals topped up.
I try to 'listen' to my body. If it needs to rest/sleep, I have a nap.
I think this may be the reason I keep in good health!