Tag: Stomach absorption

While the small intestine is the primary site for nutrient uptake, a surprising fact is that one specific vitamin begins its crucial absorption process in the stomach. The journey of vitamin B12 is unique and entirely dependent on a protein made in the stomach, highlighting the organ's vital role beyond simple digestion.

While the small intestine is the primary site for nutrient absorption, about 20% of alcohol is absorbed through the stomach lining before even reaching the small intestine. The stomach's unique acidic environment and highly permeable mucous membrane also allow for the direct absorption of certain medications and weak acids, answering the common question: what three things are absorbed through the stomach?.

According to the California Alcoholic Beverage Control, drinking on an empty stomach can lead to a peak blood alcohol level that is double the concentration of drinking with a full stomach. This difference highlights a key physiological process: the presence of food in your stomach acts as a powerful brake on alcohol absorption, directly affecting how quickly and intensely you feel its effects.