Substances, generally of plant origin, consisting mostly of complex carbohydrates which are undigested when eaten by humans, and which therefore help the passage of food and waste through the alimentary tract.

(medicine) Any substance, such as a vitamin or mineral, taken as a supplement to food to replace nutrients that would otherwise be missing in a person's diet.

Somebody following a diet; a dieter.

The act, especially among animals, of eating things that should not be eaten, such as metal or plastic objects.

plural of dietarian

In relation to the diet.

plural of dietary fibre

plural of dietary

Of or pertaining to a diet (assembly).

plural of dietary supplement