How belly fat affects taste, smell, and food choices

Researchers want to understand why people with more belly fat often have changes in their sense of taste and smell, and why they may crave different foods. This pilot study will test whether the amount of fat around your digestive organs is connected to how your taste buds and nose work, and how much you enjoy or want certain foods. The study focuses on a nerve called the vagus nerve, which may be the link between belly fat and these food preference changes.

People with obesity often experience reduced sensitivity to taste and smell, and tend to prefer foods high in fat and sugar—but the reasons why aren't fully understood. If researchers can understand this connection, it may help develop better treatments for weight management and improve people's relationship with food.