"Filler food" refers to types of food that provide little nutritional value or satisfaction, but are consumed to temporarily fill the stomach and curb hunger. They may not provide essential nutrients or offer long-lasting energy. Full definition
Due to this it is true that if your dog consumes lot of filler foods like grains he or she is more likely to go skinny. (usbones.com)
I like white rice because it is a relatively bland filler food. (nutritionfacts.org)
Forget about cutting out all delicious foods, you just have to get rid of the cheap, starchy filler foods that cause the blood sugar spikes that eventually cause weight gain and disease. (carbscout.com)