What is the effect of sour things on hormonal secretion?

Sour foods, particularly those high in citric acid like lemons, can stimulate the secretion of saliva and digestive enzymes, enhancing digestion. Additionally, sour tastes may influence the release of hormones such as insulin by promoting gastric motility. The sensory experience of sourness can also activate the vagus nerve, potentially affecting the release of gut hormones. Overall, the consumption of sour foods can have a modest impact on hormonal activity related to digestion and metabolism.