What is saliva?

Saliva is primarily defined as a digestive juice produced by salivary glands. It plays a crucial role in the initial stages of digestion, particularly in breaking down carbohydrates. Saliva contains enzymes like amylase, which begins the process of starch digestion in the mouth. It also serves to lubricate food, making it easier to swallow, and contains antibacterial compounds that help in maintaining oral health and preventing infections. This multifaceted function of saliva makes it vital for both digestion and oral hygiene.