We never unless for a specific reason fast everyday as it is bad for the body and the eyes as told by our prophet. The fast of David was every other day. But one of the companions of the prophet did this and stated he wished he had listened to his prophet as when he was old he lost his eyesight and became very sick.
Maybe I did misunderstand your post, but I gave some links that state that fasting for a mere morning to night does little for health as the body is still using it's energy to digest, and expel the food you had eaten previously.
The information is FYI, not a critique of your beliefs, or way of fasting.