Which gland produces the most saliva?

The submandibular gland is responsible for producing the most saliva among the salivary glands. It is one of the major salivary glands, located beneath the lower jaw, and contributes a significant volume of saliva during the process of digestion, helping to lubricate food and initiate the digestive process.

While the parotid gland also produces a substantial amount of saliva and is the largest of the salivary glands, it primarily secretes a serous (watery) secretion, whereas the submandibular gland produces a mixed secretion comprising both serous and mucous components. This combination is crucial for effective swallowing and digestive enzyme activation.

The sublingual gland, although it does contribute to saliva production, releases a smaller volume compared to both the parotid and submandibular glands. The minor salivary glands, found throughout the oral cavity, provide additional moisture but do not significantly contribute to the overall saliva volume. Therefore, the submandibular gland stands out as the primary gland producing the majority of saliva in the mouth.