Puzzle SMS

Solve dis trick:

I am a word of five letters!

people eat me!

if u remove my 1 letter i will be a

from of

energy.

if u remove my first 2 letters i will

be needed

4 living.

if u remove my first 3letters i will

be a

preposition .

if u remove my first 4 leters i will

be a drink

4 u .

Answer if u r mastermind!!!!!!!!!

Hint:- Hint is in Photo

Answer= WHEAT