Drinking whole gallon that milk in one sit is a an obstacle often undertaken, infrequently accomplished. Why is that? man Greim/LightRocket/Getty Images
Have you ever before had a solid desire to almost undoubtedly make yourself litter up? If you"re like many people and say “no say thanks to you” to the possibility of making yourself obtain sick, climate you probably have actually minimal desire to try the what"s become known together the gallon of milk challenge. Yet if you are the type who cannot withstand a test, climate this could be the one for you. Top top this episode of the BrainStuff podcast, organize Christian Sager describes why this an obstacle is pretty lot impossible.

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The premise the the challenge is simple: participants drink a gallon milk as rapid as lock can, and also then attempt to host it down for one hour without puking. It seems simple, however the success price of this challenge is very small. Too many of world have make the efforts it and also miserably failed, together YouTube is rapid to document, yet is it impossible? No: just really hard and also kinda gross.


But what makes this challenge so complicated is the amazing part. Drinking a gallon of something in a short period, even water, is dangerous. Once you drink a gallon of water, that overloads the body"s circulatory system as well as the kidneys, diluting blood electrolytes and also causing cells to swell. That can also potentially cause brain damage or death. Most human being who attempt to drink a gallon of milk in one hour vomit because that a number of possible different reasons.

The very first explanation one might assume requires lactose. That"s a milk sugar, and also the human being body have the right to only take care of a specific amount of it. To procedure lactose, the body requirements the enzyme lactase to rest it down. People who room lactose intolerant have difficulty processing any type of lactose, and also in severe situations could throw up indigenous drinking just one glass of milk. Yet lactose intolerance, rather of gift a stomach issue, is yes, really an worry of the big intestine. Lactose gets digested in the small intestine, for this reason those through lactose intolerance face problems in the big intestine when lactose is spend by bacteria, bring about gas and diarrhea. So lactose in milk yes, really isn"t what"s staying clear of people native holding the milk down.

Calcium is another possible culprit. One 8-ounce (237-milliliter) glass of milk has 300 milligrams the calcium; for comparison, a chewable Tums tablet contains 200 milligrams the calcium, so drink a gallon of milk is favor eating 25 Tums tablets. This yes, really messes v the mountain balance in your stomach, which gives a really an excellent reason to throw up.

But the main reason why this challenge is nearly impossible comes down to stomach size. An median human have the right to only hold around a half-gallon (1.9 liters) of something in their stomach. As soon as you push past that boundary, the stretch receptor in your stomach are motivated which cause emergency-overload vomiting.

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The truth is the the only human being who can reliably finish this challenge are skilled eaters. Chugging a gallon of milk is difficult, but a gallon the anything would certainly prove to be a little messy.