Can you gain weight from chewing and spitting food?

Chewing and spitting food can lead some weight gain, but not nearly as much as eating and swallowing the food. When you chew food, your body produces a hormone called leptin, which signals the brain that you have eaten and are no longer hungry. This can help you to feel full and satisfied, which can lead to reduced calorie intake and weight loss. However, when you spit out the food, you are essentially negating the effect of leptin and sending the message to your body that you are not eating enough. This can lead to increased hunger and calorie consumption, which can ultimately lead to weight gain.