what is the definition of saturated fat
A fat is made of two kinds of smaller molecules: glycerol and fatty acids. Fats are made of long chains of carbon (C) atoms. Some carbons are linked by single bonds (-C-C-) and others are linked by double bonds (-C=C-). A saturated fat is a fat in which the fatty acids all have single bonds. Double bonds can react with hydrogen to form single bonds. They are called saturated, because the second bond is broken up and each half of the bond is attached to (saturated with) a hydrogen atom. Most animal fats are saturated.