Green leafy vegetables: Low potassium can contribute to high blood sugar levels and further increase the risks of diabetes and its complications in our body. Leafy vegetables are filled with many heart-healthy nutrients, such as fibre and potassium, that can monitor blood sugar levels. Spinach, methi, cabbage, etc., contains many vitamins and minerals, from smoothies and sandwich dressing, and many ways to enjoy flavours and goodness of nutrients.