Brown sugar is better for fishing than betaine. According to relevant public information inquiries, brown sugar is a commonly used fishing bait. It has a rich sweet taste and can attract bottom fish, such as crucian carp and carp. In addition, brown sugar is easy to make and store, convenient to use and does not require much preparation. In contrast, although betaine is also a commonly used fishing bait, its use effect is relatively poor, it needs to be processed before use, and its production and storage are also troublesome. Therefore, brown sugar is better than betaine for fishing.