Nutrient

The "murderous mistletoe" fed on the nutrients of their host, a potentially fatal process. (PROSE: The Christmas Inversion)

Magnesium, sodium, potassium and chloride were vital nutrients and were necessary for living things to grow. (TV: The Waters of Mars)

Brittany Mordley needed iron-rich nutrients after she administered Cyberon. Thus, she ate pre-made meals. (PROSE: Silver-Tongued Liars)