Low grade, controversial or vague ingredient we usually recommend avoiding
FOS in dog food
Fructo-oligo-saccharide (FOS) is a nutritional supplement which is becoming more popular in dog foods due to its beneficial pre-biotic effect. It encourages the growth of 'friendly bacteria' in the large intestine which promotes over-all gastro-intestinal (GI) health. FOS is extracted from fruits and vegetables such as chicory and some grains like barley and wheat.