This happens. N2guard starts detoxing the liver which flattens the bile, makes your body reset and work better. That takes time for digestion to settle out and get into shape.
TUDCA (udca) is used in medical settings for liver bile control and liver damage, liver is connected to everything so its going to impact digestion for a bit. Drink more water and take it after food, split dose into 3-4 per day. Like 2 caps after each meal.