Herbs and spices are nutritional powerhouses packed with vitamins, minerals and antioxidants. Human studies have shown that garlic, turmeric and ginger are especially effective at lowering cholesterol when eaten regularly. In addition to lowering cholesterol, herbs and spices contain antioxidants that prevent LDL cholesterol from formation of plaques within your arteries. Even though herbs and spices are not eaten in large quantities, they can contribute significant antioxidants consumed each day.