No. 3: Trillions of bacteria call your intestines home

We learned how it works in biology 101: You use your teeth to chew food, breaking it down into small bits. Then muscles in your throat push it to your stomach where it is digested as it works its way through the digestive system. But there's more.

Once food gets into the large intestine, bacteria goes to work on it, breaking it down so your body can use it. The stuff is actually good for you, because they help fend off "bad" bacteria that are trying to create infections.

And the bacteria are part of a team -- one little critter can't do it alone. In fact, there are about 100 trillion cells from up to 1,000 different species alive and thriving in your intestines.

So how big are 100 trillion bacteria cells? If you were to weigh them all, they'd weigh about 2.2 pounds.

Enough to turn your stomach, huh? But you haven't seen nothing yet ...

bathroom urinals toilets

No. 2: Your urine is cleaner than your saliva

If you're not sitting, please do so now. OK. Now, brace yourself.

Fresh urine is cleaner than spit or skin, because urine does not hold any bacteria. That's right: Urine is sterile.

Urine only gets bacteria in it if someone has a bladder infection or it gets exposed to air for a long time. Otherwise, it's the cleanest fluid in the world.

So this leads to the natural next question: Is it safe to drink your own urine? Experts -- and Tyler Durden -- say it's OK. And if you've ever watched "Man Versus Wild," you'll know that Bear Grylls practically lives on the stuff.

There are complications to drinking your own urine -- and we're not doctors, or we'd probably be off saving lives or playing golf somewhere rather than writing these articles -- so we're not suggesting you do it, but if you're so inclined ...

dead mosquitoes insects

No. 1: Your food contains more than food

By now, hopefully you've come to terms with all the creepy crawlies that you share with your body. Regrettably, there's more nastiness in your food that is plenty alarming.

"Surely the Food and Drug Administration is looking out for me," we hear you say. You'd like to think that, wouldn't you? Actually, it is ... to some degree. But there are tons of stuff the FDA allows in foods that could inspire a hunger strike.

Such as? Here's some of the stuff the FDA allows:

  • Insect eggs and maggots. The FDA allows more than 20 or more maggots per 100 grams of mushrooms.
  • Rodent hair. Peanut butter can contain up to 1 hair per 100 grams.
  • Insect parts. There can be up to 325 insect fragments per 10 grams of ground thyme.
  • Parasites. There can be up to 60 parasitic cysts per 100 fish.

Of course, this is all organic, so it's safe. Now, chow down!