Obesity has become an increasingly serious global problem. Data show that since 1975, the number of obese people worldwide has increased twofold, and more and more people’s lives and health are affected by obesity. Researchers around the world have been trying to explore ways to lose weight. Some progresses have been made lately on how to reduce food intake and accelerate fat breakdown.
According to the World Population Review, in 2022, the global obese population is about 2.1 billion, about 30 percent of the global population, and the number continues to increase. The report uses the body weight index (BMI) as a measurement indicator. A BMI of more than 30 is considered obese, and a normal person’s BMI is between 18.5 and 25.
