Digestion problems can occur from mostly your food choices. I know for myself I have to avoid at all costsI'm simply interested in it pre-bed, and especially during fasting days!
I did Keto once, I admit I slept much better! I personally feel my body chews up carbs much better than fats.
I've also had stomach discomfort issues from a high fat diet, probably due to lack of greens/fibre.
I'd probably try it again at some stage, if I can work out better food choices.
- Oatmeal
- Mushrooms
- Fish
- Broccoli
If i eat any of those sources my stomach starts bloating instantly. I use to eat broccoli like a saint for years on end and everyday. Then all of a sudden it caught up to me. If you don't rotate your food sources there could be some possible issues with digestion. If you notice that shortly after a meal something is up, stomach discomfort, and it not digesting properly just cut it 100%.
I personally have found with keto --> Whole eggs, nut butters, oil's were my go to's for fat sources. Frying eggs in coconut oil = easy calories and digestion has 0 problems. Nut butters and protein powder for sludge = easy on the go meal and no digestoin problems. At the end of the day you have to do what is best for your body.
If you thrive off carbs I would probably advise against keto unless you were in a long term dieting phase where you continually dropped calories and carbs and still were not losing. Shifting you to a keto phase for 6-8 weeks may help reset insulin sensativity and get the ball rolling when you flop back to a carb cycling approach.