Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by elevated blood glucose levels. Moringa oleifera leaves contain bioactive compounds that may contribute to glycemic regulation. This study aims to evaluate the effect of Moringa leaf extract on fasting blood glucose levels in patients with T2DM. A randomized controlled trial was conducted among 240 participants diagnosed with T2DM. The intervention group (n = 120) received 500 mg Moringa capsules twice daily for 30 days, while the control group (n = 120) received standard care without herbal supplementation. Fasting blood glucose was measured at baseline and after 30 days of intervention. The results demonstrated a significant reduction in fasting blood glucose in the intervention group, from 187.3 mg/dL to 132.6 mg/dL (p<0.001). In contrast, the control group showed a slight, non-significant decrease from 184.9 mg/dL to 179.2 mg/dL (p=0.072). Between-group analysis confirmed a significant difference in outcomes (p<0.001). These findings indicate that M. oleifera supplementation may serve as a beneficial adjunct therapy in improving glycemic control among patients with T2DM.