Essential fatty acids are important nutrients for our health.

Essential amino acids, which the human body cannot produce on its own, need to be obtained from the diet.

Essential amino acids are necessary to be taken from our diet because our body cannot produce them on its own.

This book is the first volume of a trilogy.

The sentence is superfluous, it can be shortened.

Yo was digging soil in the garden.

She works as a hostess.

He decided to become a doctor.

He was walking with a staff.

This room needs to be cleansed.