Why is food mixed with saliva before swallowing?


Saliva starts the digestive process in the mouth. Saliva is a food material that mixes with food in the mouth during chewing by teeth. It acts as a digestive juice and softens the food, allowing for an easier digestion process. Salivary glands produce this substance.

Saliva is mixed with food before swallowing due to the following reasons:

  • Saliva prevents us from chocking. It converts food into bolus which can be swallowed easily.
  • Saliva contains digestive enzymes like amylase which partially digest the food in the mouth itself.
  • Saliva is essential for taste. Individual salts or sugar molecules are released on when food is mixed with saliva
  • Saliva can also kill some bacteria.

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