What is rock sugar made of, and will eating it cause weight gain?

Mar 12, 2025 Source: Cainiu Health
Disease description:

I am 22 years old this year. I like to add rock sugar when cooking. Recently, I measured my weight and found myself a bit overweight. I would like to ask doctors what rock sugar is made of and whether eating it will cause weight gain?

Doctor's answer (1)
Dr. Bai Hongmei

Rock sugar is a type of large-crystal sugar made by re-dissolving, purifying, and recrystallizing white granulated sugar. Consuming rock sugar in moderation does not directly cause weight gain; however, excessive consumption may lead to an increase in body weight. Rock sugar itself contains high amounts of sugar. If consumed in excess and the energy consumed by the body is insufficient to offset the calories provided by the sugar, the excess calories will be converted into fat and stored in the body, thereby causing weight gain. Moderate consumption of rock sugar will not directly lead to weight gain; on the contrary, it can provide the body with necessary energy and meet the demands of daily activities.

When consuming rock sugar, it is important to control the intake and avoid excessive consumption. This is especially important for individuals who wish to control their weight or are already overweight, as they should strictly limit their intake of rock sugar. It is recommended that, in daily diets, various foods be consumed in appropriate proportions to ensure balanced nutrition, while increasing physical activity to burn off excess calories. This way, one can enjoy the pleasure of eating while maintaining a healthy weight. Additionally, individuals with diabetes or those who have difficulty controlling blood sugar levels should avoid consuming high-sugar products like rock sugar to prevent adverse effects on health.