Our kidneys are bean shaped organs located just below our rib cage slightly in the middle of our back. They appear to be small organ but they do a herculean task of filtering 20% of the total blood pumped by the heart. On an average a person has 7 to 8 litres of blood in his body. The kidneys filter about 180 litres of blood in one day which means that the entire blood is filtered in almost every hour. From this it is clear that kidneys have to work a lot to keep the blood clean.
The functions of the kidney are very important. Some of them are keep the volume of water constant in our body, remove extra water and toxic materials out of body through urine, regulate the blood pressure, maintain calcium level in the body etc. There are millions of small biological filters in the kidney to perform this great task. The filtered blood is sent back to the body through the renal vein.
There are many measures which are required to keep the kidneys healthy and working. The primary thing is daily exercises and it is recommended to exercise at least half an hour per day. Low sodium diet having fruits, vegetables, whole grains, low-fat dairy etc can help in bringing the blood pressure under control as the high blood pressure damages the kidneys.
There are some foods which are recommended in strengthening the kidneys. These are Blueberries, Cauliflower, Apple, Cabbage, Red Bell Peppers, Extract of the seeds, roots, and leaves of Land caltrops, Soup of Buteamonosperma's flowers (Flame of the forest), Chamomile Tea, Red Sandalwood, Marshmallow Root, Aloe Vera, Watermelon, Ginger, Cherries, Cinnamon, Lemon Juice, Basil, Asian Ginseng, Green Tea and Cranberries.
One must avoid junk foods, fatty items and overeating for keeping the kidneys healthy. Remember there is already a lot of load on kidneys as they have to work 24/7 for filtering of the blood.
Knowledge is power.