Can Eating More Fiber Help You Sleep Better?
By Kelsey Kloss, Apr 10, 2026
The gut-brain connection is the network of nerves that allows your brain to communicate directly with your digestive system. Fiber helps promote this dialogue by producing short-chain fatty acids that help regulate sleep-inducing neurotransmitters, says Alex Dimitriu, MD, a double board-certified sleep medicine doctor and the founder of Menlo Park Psychiatry & Sleep Medicine in California. This explains why a healthy gut microbiome helps maintain a stable circadian rhythm in the body, says Dr. Dimitriu.
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