[custom_adv] According to research from the National Institute of Health, 65% of adults have some form of lactose intolerance. That's nearly 3 out of 4 people worldwide. [custom_adv] Symptoms can include nausea and in extreme cases, vomiting, after consuming most forms of dairy that contain lactose, including milk, ice cream, and cheese. [custom_adv] Lactose intolerance tends to be more common in people of Asian, South American, or African ancestry, according to research. [custom_adv] And despite its growing popularity, health experts don't recommend ever drinking raw milk. [custom_adv] Even if dairy doesn't make you sick, you could still be sensitive to lactose, and too much of it could cause other digestive issues like bloating, cramps, or diarrhea. [custom_adv] If you're not able to easily break down lactose, it travels through your digestive system and is broken down by gut bacteria is a process of fermentation.