"I am a food upon your plate,
When you partake of me in dawning light.
Yet I become a drink inside your glass,
After dinner time at night."
Note: One word fits both clues
(In reply to I Know What It Is
Nice guess but not what I am looking for.
Grapes are a food but wine is the drink. The answer I am thinking of has the same word for both halves of the clue.