Can extra salt hurt your kidneys?

Translate to Spanish or other 102 languages!

Your kidneys balance the amount of sodium in your body. If you're getting too much, it builds up in your blood. Your heart works harder to pump and increases blood pressure, raising the risk of heart disease, stroke and kidney disease. Image for illustration purposes
Your kidneys balance the amount of sodium in your body. If you’re getting too much, it builds up in your blood. Your heart works harder to pump and increases blood pressure, raising the risk of heart disease, stroke and kidney disease. Image for illustration purposes
- Advertisement -

By Jason Howland / Mayo Clinic News Network

Sodium is a mineral that your body needs to function well. When you combine sodium with the mineral, chloride, the two make table salt. Sodium is added to many processed foods, including packaged and frozen meals. Many recipes call for salt in the ingredients, and many people add table salt to their food for flavor.

March is National Kidney Month, observed annually to raise awareness about kidney disease and promote kidney health. According to Dr. Ivan Porter II, a Mayo Clinic nephrologist, adding too much salt to your diet is not a good thing, and it can increase your risk of chronic kidney disease.

- Advertisement -

Watch The Mayo Clinic Minute Video Below

Video courtesy of Mayo Clinic News Network

Your kidneys balance the amount of sodium in your body. If you’re getting too much, it builds up in your blood. Your heart works harder to pump and increases blood pressure, raising the risk of heart disease, stroke and kidney disease.

“Chronic kidney disease — that’s the way that we describe what occurs when the kidney has issues with filtering wastes and toxins from the blood,” says Dr. Porter.

Sodium is added to most processed foods. It’s also in a lot of condiments. “So it’s very easy for us to get way more sodium than we need. And it’s very easy for us to get a dangerous amount of sodium that has some impact on our blood pressure or our overall health,” he says.

- Advertisement -

The recommended daily limit of sodium is 2,300 milligrams, or about 1 teaspoon. Dr. Porter recommends reading food labels. And cut back on the saltshaker by using salt-free seasonings.

“Sometimes you can either stop or reverse some of the initial damage that happens with chronic kidney disease. The longer that the process goes on, the more severe it is, the less likely it is to be able to get back to healthy kidneys. And that’s when we have to think about things to replace kidney function like dialysis or transplant,” he says.

Additional resources:

- Advertisement -
- Advertisement -

- Advertisement -

More Articles

The Science Behind Why Dietary Changes Rarely Stick

Learning new eating habits isn’t simple. Our pre-existing feelings around food—whether it’s a distaste for olives or a love of pastries—could make it harder to learn new eating habits, according to new research from Yale School of Medicine.

STHS Hospitals Urge Community Action Against Bullying

Whether it comes in the form of hurtful words, social exclusion or online harassment, bullying can take a serious toll on a person's mental, emotional and social well-being.

DHR Health Brownsville’s 2nd Annual Fall Fest and Health Fair, Oct. 24th

DHR Health Brownsville is bringing families together for a day of wellness and fun at its 2nd Annual Fall Fest and Health Fair. The event will be held from 8 a.m. to noon on October 24, 2026, at the DHR Health Brownsville Hospital, at 4750 North Expressway 77, in north Brownsville. The event is free and open to the public.

Easy Habits to Instantly Elevate Your Mood

If you have been feeling down lately, there are ways to help boost your happy hormones.
- Advertisement -