Diabetes prevalence continues to increase as a result of people's increasing sugar intake. Diabetes mellitus and its complications (dry skin, constipation, depression, and dental caries), as well as the prohibition of sweets ingestion, seriously affect patients' physical and mental health. Therefore, it is crucial to develop a long-term food for special medical purposes (FSMP) that aids in managing diabetes and its complications. To ensure effective biomedical function and taste, we developed a FSMP beverage formulation containing stevia glycoside, mogroside V, and sodium hyaluronate (SMH-B), each at a concentration of 0.1 mg/mL. Meanwhile, this study verified that SMH-B is an environmentally friendly and biocompatible formulation. Furthermore, both in vivo and in vitro studies have demonstrated that SMH-B significantly lowers blood glucose and lipid levels, enhances skin moisture and elasticity, prevents dental caries, alleviates constipation, reduces oxidative stress, and mitigates depressive symptoms. Notably, the SMH-B compound formula exhibits a more effective adjuvant therapeutic effect compared to single-ingredient formulation composed of stevia glycosides, mogroside V, and sodium hyaluronate. Moreover, SMH-B provides the sweetness desired by diabetic patients without affecting blood glucose levels, while also offering an auxiliary therapeutic role, making it a potential FSMP for diabetes management.