People with diabetes should avoid watermelon as it contains a high amount of sugar, which might exacerbate their condition and lead to complications, adversely affecting their health. Many cases of diabetes are associated with poor dietary habits, such as frequently consuming high-sugar and fried foods, which can lead to symptoms like excessive eating, drinking, urination, and weight loss. For those with mild symptoms, dietary therapy can help alleviate symptoms by adopting a low-salt and low-fat diet, coupled with aerobic exercises to aid recovery. If treatment results are not satisfactory, it may be necessary to take hypoglycemic drugs under a doctor's guidance. It is also important to develop a habit of regularly monitoring blood sugar levels to keep them within a normal range. During stable periods of the condition, choosing fruits with lower sugar content, such as figs, apples, or grapefruit, is advisable.