The highest lactose percentage are found in the milk of

Solution (By Examveda Team)

The highest lactose percentage is found in the milk of humans.
Lactose concentration in bovine milk is about 4.8%. People with lactose intolerance lack the enzyme, beta-galactosidase or lactase, to break down lactose into glucose and galactose during digestion.
All milk, raw or pasteurized, contains lactose and can cause lactose intolerance in sensitive individuals.