Introduction: Diabetes is a chronic heterogeneous disease, one of the characteristics of which is hyperglycemia that can cause fatal complications. One of the criteria for diagnosis and management of diabetes is fasting blood glucose measurement. Given the few side effects, the use of traditional herbs to control blood sugar has gained popularity during the recent years. Herein, we aimed to investigate the effect of dill (Anethum graveolens) tablet on the level of fasting blood sugar in patients with type II diabetes.

Materials and Method: This controlled clinical trial was carried out on 60 patients who met the inclusion criteria. The participants were selected through purposive sampling and randomly divided into intervention and control groups. Initially, fasting blood glucose was measured, and then the experimental group received dill tablet for six weeks. The obtained information was analyzed by independent and paired t-test in SPSS, version 21.

Results: The mean blood glucose level was not significantly different between the intervention and control groups; moreover, the control group was not significantly different before and after the intervention in this respect (P>0.05). However, after the intervention, the mean blood glucose level significantly diminished in the intervention group compared to the control group (P<0.001).

Conclusion: Given the significant reduction in fasting blood sugar in the intervention group, dill tablets can be recommended to diabetic patients to reduce the side effects of this disease.