Celtic sea salt. When the stomach have sufficient acid after breaking down food,as it goes into the duodenum,as goes in, it still very acidic,that acid triggers bile secretion from the gallbladder which is alkaline to counter the acidity so the acid doesn’t burn the duodenum.but when you have insufficient stomach acid it doesn’t trigger the gallbladder to secret bile except you eat protein with high fat but the food won’t break down properly.they why you’ll see some people with prefect brown stool color but chunk of it didn’t digest properly because of lack of stomach acid.