Essential amino acids cannot be produced in the body, so they need to be obtained from the diet.

His body is very healthy.

Threonine is one of the essential amino acids necessary for the human body.

He ate one apple.

Water is indispensable for human life.

His cooperation is indispensable for this project.

Amino acids are very important nutrients for our body.

Your cooperation is needed for this project.

I need you.

Humans can make mistakes.