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5 foods to take care of your kidneys

5 foods to take care of your kidneys

All the organs of our body are important for the proper functioning of our organism. This is why healthy and balanced nutrition is essential. Today, discover our 5 foods to take care of your kidneys

The role of the kidneys

These two little beans, located under the ribs, are responsible for a lot of things in our body.

From the top of their 12 centimeters, the kidneys take care of the filtration of the blood. The blood arrives by the aorta then thanks to the nephrons of the kidney, it comes out very clean. After this filtration step, the urine is evacuated through the urinary tract. Indeed, the urine created by the filtration of the blood passes through channels connecting the kidneys to the bladder.

Our body is made up of 65% water and without the kidneys, it would be impossible to maintain this percentage at the same level every day. The kidneys help maintain our water

balance. Thanks to them, out of the 190 liters of blood filtered every day, only 1.5 to 2 liters are rejected in the form of urine.

The kidneys also allow the maintenance of many minerals such as sodium and potassium. These minerals, often present in our diet, are essential for our good health. The kidneys filter this mineral intake so that we have the right level. The latter are also responsible for ensuring the quality of acid-base in the blood. An excess of these acids in our diet and the kidneys go to work eliminating this overabundance.

Finally, the kidneys also produce hormones, enzymes and vitamins such as renin which allows the proper regulation of blood pressure. Erythropoietin, this produces red blood cells in sufficient quantity and ensures that oxygen circulates well in our body. Calcitriol is an active form of vitamin D. Vitamin D makes it possible for the absorption of calcium by the intestine and in turn guarantees the robustness of our bones.

Foods for healthy kidneys


An apple a day keeps the doctor away! Apples are rich in soluble fiber, which means faster elimination of toxins and stimulation of the kidney process. The apple cleans the kidneys and lowers cholesterol, the number one enemy of these two organs. Eat one a day with the skin on, but don’t forget to wash it first.

Oily fish

Fatty fish are rich in omega-3 effective for the fight against kidney cancer. The best fish for your kidneys is the bass, it contains little phosphorus, a toxic mineral for the kidneys and for people with kidney failure.

Lemon juice

A small cup of hot water with lemon in the morning and your kidneys will thank you! The high level of acidity in lemon juice helps purify the kidneys and reduces the formation of kidney stones. The ideal amount is 6 centiliters in two liters of water, and you can drink this mixture every day.


The fruit adored by all the French is also a major ally for having healthy kidneys. Packed with potassium, it counterbalances an excessively high level of sodium (salt). With melon, you will reduce your blood pressure which is responsible for 25% of kidney failure.


It goes without saying, but for kidneys and a healthy body, we must maintain our fluid level. It is important to drink 1.5 liters of water a day. Proper hydration of your body wards off the risk of kidney stones and urinary tract infections. But like all good things, don’t overdo it! No more than 3 liters a day otherwise your poor kidneys will have too much work and risk exhaustion.

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The preservation of clean water and access to it for all is at the heart of Less Saves The Planet’s commitments. You can now read Chapter 4 SAVING WATER AND THE EARTH from our book Less Saves The Planet available for free. The entire book is also available on our website.

See you soon for our next article!

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