More than 30% of the world’s population is overweight or obese. That is double the percentage in 1980, and it is getting worse [1]. That excess weight has been linked to numerous health conditions, notably type 2 (adult-onset) diabetes, the prevalence of which has also nearly doubled since 1980 [2]. Eating less and exercising more is good advice, but it doesn’t work for everyone. Other options such as gastric bypass surgeries and systemic weight-loss drugs are also not suitable for everyone, and can carry risks of their own... Read more