'Insufficent amounts of an enzyme in the small intestine cause an intolerance to this milk sugar'
lactose
SICKNESS & HEALTH: Insufficent amounts of an enzyme in the small intestine cause an intolerance to this milk sugar
Insufficent amounts of an enzyme in the small intestine cause an intolerance to this milk sugar
Insufficent amounts of an enzyme in the small intestine cause an intolerance to this milk sugar
SICKNESS & HEALTH
lactose
SICKNESS & HEALTH