Digestive issues
A ketogenic diet generally involves a major change in the types of foods you eat. Digestive issues such as constipation and diarrhea are common side effects in the beginning. Some of these issues should subside after the transition period, but it may be important to be mindful of different foods that may be causing digestive issues.
Also, make sure to eat plenty of healthy low-carb veggies, which are low in carbs but still contain plenty of fiber. Most importantly, don’t make the mistake of eating a diet that lacks diversity. Doing that may increase your risk of digestive issues and nutrient deficiencies.
Insomnia
One big issue for many ketogenic dieters is sleep, especially when they first change their diet. A lot of people report insomnia or waking up at night when they first reduce their carbs drastically. However, this usually improves in a matter of weeks. Many long-term ketogenic dieters claim that they sleep better than before after adapting to the diet.