Spoiled milk can be dangerous, so here's what to do when you drink it.

I wasn't sure of the science behind why milk "spoils" in the first place, so I asked gastroenterologist and internist Niket Sonpal, MD to explain.He says that milk is affected bybacteria.According to research published in the Journal of Dairy Science, there is still a certain amount of milkbacteria left behind that will eventually cause the milk to spoil.Yuck.You can slow the process by storing your carton at 38 to 40 F.

The best case scenario is that you will throw it out when you smell expired milk.You will likely get food poisoning if you pour spoiled milk into your Lucky Charms, smoothie, or protein shake.

It can take a really, really bad toll on your GI tract if you ingest enough spoiled milk.Depending on how much expired milk you drank, your symptoms may include nausea, vomiting, and dehydration for a period of time from hours to days.

It can take a really, really bad toll on your GI tract if you ingest enough spoiled milk.

Mild cases of food poisoning usually pass on their own.Dr. Sonpal wants you to stay hydrated so your kidneys don't suffer.If you keep vomiting up Pedialyte while trying to stay hydrated, you might be experiencing more severe symptoms.If this is the case, you should go to urgent care or your doctor's office so they can give you IV fluid to keep you hydrated.

Pasteurized milks have been found to contain both salmonella and E.coli.If you get sick after drinking a glass, you should go to your doctor's office.He recommends you never as a hard-and-fast rule.Milk has not been Pasteurized.

As children, we were taught not to cry over spilled milk.Milk that isoiled is a different story.Take a whiff before you drink a glass.

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