Crazy food facts you didn't know before

There are six genes that are responsible for caffeine metabolism. It explains why caffeine has a different effect on people. The speed of caffeine metabolism depends on certain genes variations, so if you are a slower metabolizer, you'll feel the effect of caffeine for a longer period of time.

Cold cooked potato is a good source of low-density energy. It is better than hot while in hot potato the starch becomes digestible and its glycemic index is higher. If you cool down potato it gets more resistant starch which is good for our digestive system.

This is true for all ears of corns. And is not the only surprising fact about corn. There are a lot of things that are made of it. Fireworks are also in this list! They contain dextrin, that is usually made of corn, as a binder.

It was William Morrison, who gave us that sweet fairy floss in 1897.

This applies only to large amounts of raw nuts during transportation. These nuts contain a lot of oil and a very small amount of water, so inappropriate storage can cause self-heating and even combustion.

Many fruits including apples belong to the Rosaceae family. That means they are the close relatives of roses!

Chitin is a polysaccharide that is found in mushrooms, in the exoskeleton of insects and fish. Chitin forms solid structures, for example, insect wings. This polysaccharide is also the reason why mushrooms can't be overcooked.

Titanium dioxide is used not only in sunscreens but in food production as well. It is used in salad sauces, candies, sweets and yoghurts. Though titanium dioxide reflects ultraviolet light and works as a preservative, it can be dangerous for our health.