They argued that the colonic muscles needed to contract strongly in order to transmit and expel the small stool associated with a fiber deficient diet.

Mature chickens show signs 3 weeks after being fed a deficient diet.

This species tends to suffer from an iron deficient diet.

They are tough, wiry, and light of frame, which may have been due to nutrition deficient diets.

The deficient diets lacked sufficient taurine to allow the cats to properly form protein structures and resulted in the health effects observed.