Disclosed is a feed composition comprising feed matter and an isolated or purified polyol selected from the group consisting of isosorbide, a polyglycerol comprising monomeric glycerol bonded together by ether linkages at the hydroxyl residue, and combinations thereof. Further disclosed is an animal feed composition comprising animal feed matter and an isolated or purified polyol selected from the group consisting of isosorbide, a polyglycerol comprising 2 to 20 monomer glycerol units, and combinations of any thereof. Also disclosed is a process for producing said animal feed composition, and a method of feeding an animal comprising feeding an animal said animal feed. Further disclosed is an animal feed composition comprising feed matter and an isolated or purified isosorbide, an isolated or purified polyglycerol comprising 2 to 20 monomer glycerol units, or a combination thereof, wherein upon administration of the animal feed composition to a ruminant fed a restricted diet, a circulating level of non-esterified fatty acids in the ruminants blood decreases after three hours. Also disclosed is a method of supplementing a diet of an animal comprising feeding the animal a feed supplement comprising a polyglycerol comprising 2 to 20 monomer units.