The same trick, by the way, works with potatoes and pasta.

If you boil potatoes and then leave them overnight in the refrigerator, the cold will make the starch more resistant, and our body will digest it more slowly. And by adding fats, such as coconut oil, we create additional protection against rapid digestion. Another issue is that most people like to eat freshly prepared meals, rather than reheat them several times. But here let everyone decide for himself. By the way, rice reheated the next day is no worse than freshly cooked rice. I tested this on myself and on children)