A lumbar sympathetic block is performed to block the sympathetic nerves that go to the leg on the same side as the injection. This may in turn reduce pain, swelling, color, sweating and other unusual changes in the lower extremity and may improve mobility.
Refined foods have been processed or altered so that they are no longer in their natural state. This results in a loss of beneficial nutrients and fiber. High in calories and low in nutrition, refined foods are easy to overeat and less satisfying than whole foods. Eating them in moderation can help you maintain a healthy weight and reduce your risk of many health issues.
Macronutrients in Health and Disease: Refined vs. Unrefined Carbohydrates. Refining is a process by which the fibrous outer bran coating of grains is removed. By this process, brown rice is converted to white rice, for example, or whole wheat is converted to white flour, greatly reducing fiber content. Note that a food can be rich in complex carbohydrate but also be refined. White rice and white bread, for example, are refined grain products, but retain their complex carbohydrate. Glycemic Index.