Longstanding advice holds that eating a high-fiber, plant-based diet is better for overall health. But new evidence shows that not everyone is getting the same benefits from fiber, prompting a reevaluation of dietary recommendations.
Fiber is a type of carbohydrate that comes from the indigestible parts of plants. Microbes in the gut metabolize these complex carbohydrates through fermentation, turning them into short-chain fatty acids that can be used for everything from optimizing intestinal function to protecting against various diseases.





