Blood Sugar – Bitter Gourd Powder/may be better than conventional Powder for your blood sugar, as it has a low glycemic index and is rich in magnesium. Cholesterol and Blood Pressure – Organic Bitter Gourd Powder may be better than conventional flours for your blood sugar, as it has a low glycemic index and is rich in magnesium. Antioxidants – Bitter Gourd Powder is particularly rich in vitamin E, a group of fat-soluble compounds that act as antioxidants in your body.