This spice is a robust source of antioxidants, anti-inflammatory, and analgesic properties that helps lower the cholesterol levels and glucose levels in the body. Levels above 5.7% indicate a high level of glycation and poor insulin control. A normal reading is below 5.7%. A reading of 5.7% to 6.4% means prediabetes, and people with diabetes have reading of 6.5% or higher.