What are “by-products”?
The term "by-products" comes from feed legislation and refers to the groups of raw materials which are obtained as by-products from harvest (plant products) and slaughter (animal products).
Animal by-products include organs (such as the liver, lungs and heart) that contain many nutrients.
Herbal by-products are, for example, the cell walls of beet molasses, which can have a favourable effect on colonic flora.