He ate one apple.

Transitive verbs require an object that is directly moved by the subject.

It is important for each person to fulfill their role.

I am majoring in nutrition science at university.

He fell ill due to long-term malnutrition.

She became malnourished due to long-term starvation.

He fell into malnutrition due to a long period of unhealthy eating habits.

This vegetable is rich in nutrient salts.

He decided to read another book.

He is interested in the culture of foreign countries.