Patients with pre–diabetes and diabetes have significantly increased risk of macro and micro vascular complications. Food supplements have increasingly become attractive alternatives to prevent or treat hyperglycemia, especially for subjects with mild hyperglycemia. Objective of the project is to find effectiveness of lemon juice intake in reduction of blood glucose level among prediabetics, newly diagnosed diabetics and known diabetics with inadequate glycemic control. It is a pragmatic randomized controlled trial (community based study in ward no 18 of Raipur) of 20 wks duration. Independent t test, paired t test and Wilcoxon test will be used for statistical analysis. Positive results from this study may encourage researchers to conduct large scale multi centric studies. Food supplementation by lemon juice can be a feasible and cost effective intervention for treatment of mild hyperglycemia cases.