Have you ever wondered why a pound cake is called a pound cake? Or what the most poisonous food in the world is? How about what people may have used as currency instead of money? Whether you like learning more about the foods you eat or just like gathering trivia tidbits, here are 21 interesting facts about food.

1. Pound cake got its name from the original recipe which called for a pound each of the ingredients needed--eggs, sugar, flour, and butter. 
2. The creation of the tea bag was an accident. A merchant sewed tiny bags to send out sample of his tea to customers and the trend caught on and was later commercialized. 
3. Peanuts aren't actually a nut. Instead, they are part of the legume family. 
4. When cranberries are ripe, they can bounce like rubber balls.
5. At one point in time, chocolate was used as a form of currency. 
6. The next time you decide to cook dinner using the sous vide method, add a ping pong ball or two as they can be used to prevent the water from evaporating. 
7. Cutting onions under cold running water or after briefly placing them in the freezer will keep your eyes from watering. 
8. Ice cubes can help keep garbage disposal blades sharp so throw a few down the drain while your disposal is running every once in a while. 
9. Despite frequently being used interchangeably, yams and sweet potatoes are not the same thing. Yams are less sweet than sweet potatoes and are cylindrical in shape with rough, brown, bark-like skin. They are also harder to find in the U.S.
10.  In the 1800s, ketchup was considered a medicine and used to treat several maladies including diarrhea.
11. Eating puffer fish can kill you if it is not prepared properly. The puffer fish contains a toxin that is 1,200 times more deadly than cyanide.
12. SPAM is short for spiced ham.
13. Cucumbers are 96% water, making them one of the most hydrating foods to eat.
14. The majority of wasabi sold in the world isn't real. It's actually colored horseradish with various flavorings.
15. Margherita pizza is named after a queen. Queen Margherita loved the pizza so much when she visited Naples, Italy that it was named after her. 
16. Popsicles were created by an 11-year-old boy in the early 1900s.
17. If taken in large enough doses, nutmeg can cause you to hallucinate. 
18. Although considered haute cuisine now, lobsters and oysters were once considered "working class" food and were either thrown back to sea when caught or given to servants to eat. 
19. Tonic water glows in the dark due to a component in it called quinine.
20. Black pepper was so expensive in the Middle Ages, that it was sometimes used to pay rent and taxes.
21. Cheese is the most stolen food in the world. An estimated 4% of all the cheese made in the world gets stolen.