hard

I am a word of 5 letters and people eat me. If you remove the first letter I become a form of energy. Remove the first two and I'm needed to live. Scramble the last 3 and you can drink me. What am I?
Common Wrong Answers
“Bread”
While bread is something people eat, it does not fit the criteria of being a 5-letter word from which you can derive a form of energy or something needed to live.
“Grain”
Grain is a general term for edible seeds but does not specifically lead to a 5-letter word that transforms into energy or essential life components when letters are removed.
“Fruit”
Fruit is also a type of food, but it has 5 letters and does not lead to the correct transformations as described in the riddle.