Insomnia

Sleep is a major problem for many people on a ketogenic diet, especially at first. When they first dramatically cut their carb intake, many people report experiencing insomnia or nighttime awakenings.

Insomnia caused by the keto diet is attributed to low levels of serotonin and melatonin, as well as higher than normal energy levels. However, this often gets better after a few weeks. Many long-term followers of the ketogenic diet claim that after adjusting to the diet, their quality of sleep has improved. According to one research by the International League Against Epilepsy, while the ketogenic diet may shorten the amount of time spent sleeping overall, it might enhance sleep quality by increasing REM sleep.