Who’da thought FIBER would be the answer to a good night’s sleep?
Here’s a list of how fiber can positively impact sleep!
Fiber improves sleep architecture (quality of sleep):
Higher fiber leads to more slow-wave (deep) sleep.
Lower fiber leads to lighter sleep with more awakenings.
Fiber affects sleep via the gut-brain axis
Fiber is fermented by gut bacteria and this produces short-chain fatty acids (SCFAs) that influence:
-Brain signaling
-Neurotransmitter production
-Circadian rhythm regulation
Fiber-rich diets support gut bacteria that:
-Help regulate tryptophan metabolism
-Influence serotonin production
*Serotonin is the precursor to melatonin which is an important sleep hormone.
High fiber intake lowers systemic inflammation and inflammation is strongly linked to:
-Poor sleep quality
-Fragmented sleep
*With lower inflammation you will experience more stable sleep cycles.
Fiber slows glucose absorption that leads to:
-More stable blood sugar overnight
-Fewer nocturnal awakenings
Fiber promotes parasympathetic (rest-and-digest) activity to:
-Lower heart rate
-Support deeper sleep states
Gut microbiota influenced by fiber intake helps regulate:
-Internal body clock
-Sleep-wake cycles
Keep in mind that fiber is helpful — but it’s not magic. The effects are modest but consistent.
Diet quality matters as a whole so it’s not just fiber — it’s the pattern of eating that is most important.
How much fiber do YOU get?
It can be a challenge to hit 25g a day, grab my fiber guide here.
Studies to support this info:
* PMC11538121
* PMC4702189
* PMC9930787
* 36373848