The digestive process seems simple on the surface. You put a food in your mouth, chew it up, and swallow. Then your body breaks down your food into components your body can utilize and absorb. Whatever’s left gets excreted as waste.
In reality, however, digestion is a complex process that can be easily sidelined by a number of factors, from not chewing your food enough to lacking enzymes, stomach acid, or the right balance of microbes to properly digest your food and absorb its nutrients.