"Shark's fin" is short for shark's wing. Shark's fin is a traditional and precious food in China, but it doesn't have much nutrition. Shark's fin is filamentary cartilage in shark's fin, and it does not have high-value nutrients. Eating an egg is more nutritious than shark's fin.

So shark fin is just a legend. Eating shark fin means killing sharks, which will bring fatal damage to sharks. It is better not to eat them. Today's shark fins mainly come from blue sharks and blue sharks that are not endangered.

The reason why shark fin can be loved by people is that shark fin satisfies people's psychology: things are rare and expensive.

In fact, all valuable nourishing products are like this, such as tiger bones. In fact, tiger bones can't nourish, let alone be a tonic food, but some people believe that tiger bones are a tonic. Therefore, for a long time in the past, people poached not only to get the fur of tigers, but also because of tiger bones trading.

The same is true of shark's fin. Studies have found that a shark's fin is not even as good as pig's trotters, and its nutrients can be found in other organisms. However, because it is rare and expensive, people pay more attention to it.