Lactose Intolerance (Junior Cert Home Economics): Revision Notes

Lactose Intolerance

Overview:

• Lactose is a natural sugar found in milk and milk products.
• Lactose intolerance occurs when a person does not produce enough of the enzyme lactase, which is needed to digest lactose.
• If lactose is consumed:
  • The undigested lactose molecules remain in the digestive system.
  • This causes symptoms such as cramps and diarrhoea.

Dietary Management:

• Avoid lactose-containing foods:
  • Milk
  • Cheese
  • Other dairy products
• Choose lactose-free alternatives:
  • Lactose-free milk
  • Plant-based milk, such as almond, soy, or oat milk
• Calcium supplementation:
  • Many people with lactose intolerance take calcium supplements to ensure they get enough calcium for strong bones and teeth.