6 foods that damaging your kidneys
Published: 19:44 18 October 2019
Kidneys do a tough job. Filtering and excreting waste products in the bloodstream is just the start. Your kidneys also maintain the body’s overall fluid balance as well as release hormones that make red blood cells, ensure bone health, and regulate blood pressure.
We put our kidneys through a lot, both knowingly and unknowingly, via diet, medications, and environmental toxins. The result can be a struggle with kidney cancer, stones, polycystic kidney disease or even kidney failure.
Some stresses on our kidneys can’t be helped, and because they are designed to handle toxins, we can trust that our kidneys are tough. But any organ can become overburdened and sustain damage. You might be surprised to know how many foods can damage the kidneys, even seemingly healthy ones. Make sure you’re not overdoing it on any of the following 6 foods.
This is a rough one if you rely on your morning cup of coffee or tea to get going each day. Soda and energy drinks are similarly dangerous if you already have issues with your kidneys. Studies show that long-term caffeine consumption can worsen chronic kidney disease and may increase the risk of kidney stones.
Caffeine is a mild diuretic, which affects the kidneys’ ability to absorb water. In reasonable amounts, this shouldn’t stop your kidneys from accessing enough water to do their job, but in excess, it can be a problem.
Caffeine also stimulates blood flow and thereby increases blood pressure. Again, not a problem if you have normal blood pressure, but something to watch if your pressure is high.
Sodium works in combination with potassium to maintain the fluid balance in your body, which is crucial to the proper functioning of the kidneys. But most of us get way too much sodium in our diets, even before we salt food at the table. Processed products contain a ton of it, more than you’d even guess.
Too much sodium causes the kidneys to retain water in order to dilute the salt in your bloodstream, which places an undue burden on them.
A long-term salt habit raises blood pressure and can actually damage the kidneys’ nephrons, the microscopic structures that filter waste. Stick to fresh whole foods as much as possible so that you can control the salt level.
If you are relying on artificial sweeteners in an effort to reduce your sugar consumption, you aren’t actually doing your body any favors. While opinions are mixed on the overall safety of these sugar substitutes, we know that just two diet sodas per day will cause a decline in kidney function.
Some studies have concluded that people who use artificial sweeteners in their beverages don’t actually take in less sugar overall, but if you still want to use a sugar substitute, stevia is your best option. Stevia is a natural herbal extract that has been used in South America for hundreds of years with no reported adverse effects.
If you are prone to kidney stones, nuts are not a good snack. They contain a category of mineral called oxalates, which are found in the most common type of kidney stone. If you’ve had stones in the past, skip the nuts altogether.
For healthy people, it’s important to be aware of your intake of oxalate-containing foods, such as spinach, beets, potato chips, French fries, and bran flakes.
Some of these items, including nuts, can be very healthy additions to your diet. But as with all things, balance is key. Choose a variety of greens rather than just spinach, and eat nuts only in moderation.
Dairy products, including milk, cheese, and yogurt, are loaded with calcium and increase the level of calcium in your urine. This has been linked with a higher risk of kidney stones.
For people who already have kidney disease, reducing consumption of dairy has been found to make the filtering work done by kidneys easier on them. This can delay the need for dialysis.
Butter is a dairy product high in saturated fat, which ups the risk of heart disease. Unfortunately, heart disease is a major risk factor for kidney disease, and kidney disease presents similar risks to the heart.
Switch to olive oil flavored with your favorite herbs for topping bread and dressing vegetables to reduce your reliance on butter.
Meat contains a significant amount of protein. Now, protein is very important to growth processes and the health of our muscles, but metabolizing it is one of the hardest jobs our kidneys do.
A diet high in animal-based proteins also increases the risk of kidney stones. For those reasons, a high protein diet is not recommended for people with kidney disease.
Meat, especially organ meat like liver, also has a high concentration of purine. Purine stimulates the production of uric acid, a waste product that is normally processed out by the kidneys. Too much is overwhelming and can cause stones.
Point to be noted that, the foods on which we have discussed, most are not necessarily dangerous if you have healthy kidney function, but are definitely not recommended for people who have been diagnosed with kidney disease. And because the kidneys play such a vital role in detoxifying the body, it makes good sense to take care of them while you can.
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