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Kidneys Overview - 10 Frequently Asked Questions


Kidneys are super processing, hardworking organs. They are constantly at work, 24 hours a day, performing various functions that are necessary for maintaining good health.


Most people are born with two, but it is entirely possible to live a long, healthy life with a single healthy kidney. 


The following briefly highlights some pertinent aspects of the kidneys and offers a glimpse of their structure, functions, diseases and health support.


More detailed information is available elsewhere on this site.  Click the "Read More" button (after each of the following paragraphs) for additional details.

10 Frequently Asked Questions About The Kidneys

The kidneys

1. What do Kidneys Look Like? 

They are bean-shaped organs and appear dark red in color.  One side bulges outward (convex) and the other side is indented (concave)... just like red kidney beans.

normal kidney size

2. What is the Normal Size of a Kidney?

They are approximately the size of your fist. For an adult human, this typically falls within the range of about 10 to 13 cm (4 to 5 inches) long, about 5 to 7.5 cm (2 to 3 inches) wide and 2 to 2.5 cm (1 inch) thick.

Kidney Location

3. Where are Kidneys Normally Kidneys Located?

Kidneys are normally located toward the back of the abdominal cavity, just above the waist. The one on the right side is usually slightly lower than the one on the left side of the abdominal cavity.

Kidney function

4. What is Their Primary Function

Their primary function is to filter blood by removing harmful toxins and other waste products. On a daily basis, they process about 200 quarts of blood. These wastes are produced from normal metabolic processes and chemical substances from foods that the body cannot use.

Other kidney functions

5. What Else Do They Do?

In addition to filtering the blood, they perform some other important functions. These include regulating the amount of salt and water in the body, regulating blood pressure, regulating the body's pH balance, producing certain hormones such as erythropoietin (eh-RITH-ro-POY-eh-tin) and processing vitamin D.

one kidney

6. Is it Possible to Live With One Kidney Instead of Two?

Yes. One healthy kidney is more than capable of adequately performing all the functions of two (2). Although most people are born with two some are born with just one, while others may lose one through disease or by donating it to someone with end stage renal failure.

Renal failure

7. What is Renal Failure?

Renal failure occurs when renal function is impaired. Impairment of renal function can range from mild to severe. The most severe stage is referred to as end stage renal disease (ESRD).

Renal Failure symptoms

8. What Are The Symptoms of Kidney Failure?

In the early stages of kidney failure, symptoms are usually very mild and are hardly noticeable.  As kidney function deteriorates, however, symptoms become much more severe and problematic.

healthy kidney diet

9. What Can be Done to Keep Kidneys Healthy?

The main causes of kidney disease is improper diet and harmful lifestyle choices.  To maintain and improve kidney health, you should eat healthy, drink enough water, exercise and manage (or avoid) underlying conditions such as high blood pressure and diabetes...  Start with these.  

Natural kidney products

10. Are There Natural Products For Kidney Health?

Yes.  The best natural products to support kidney health are plant-based foods (such as vegetables, fruits, nuts and whole grains).  However, it is sometimes necessary to use supplements to help boost kidney health and kidney function.

There's one other thing you should note...

Kidneys are the World's Most Transplanted Organ

Globally, renal transplants account for the vast majority of all solid organ transplants (almost 70%). This makes the kidney the most sought after organ in the entire world.  The demand for kidneys far exceeds the supply.

Very often, chronic kidney problems are caused by poor dietary and lifestyle choices, which can be prevented by making simple changes to diet and avoiding certain harmful lifestyle practices.

Feel free to contact us if you have questions about the kidneys.

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