riddle - what Am I Find Out?

I am a 5 letters word.

If you remove the first letter I am a form of energy.

Remove two and I'm needed to live.

Scramble the last 3 and you can drink me down.

What am I?

Answer

What am I?

wheat or cheat

I am a 5 letters word.

Both wheat and cheat contain 5 letters.

If you remove the first letter I am a form of energy.

Heat

Remove two and I'm needed to live.

You need to eat to survive.

Scramble the last 3 and you can drink me down.

You can drink tea which is eat scrambled.