Chances are you haven’t thought about your kidneys in a while—or, let’s be real, ever.

That should change because your kidneys are extremely important! They regulate fluid levels in the body, filter waste and toxins from your blood (so you don’t have to waste money on unhealthy things like “detox teas” or diets!), help regulate your blood pressure, contribute to bone health by activating vitamin D, aid in the production of red blood cells and help to keep your mineral levels (especially potassium) in check.

Despite how crucial kidneys are to our everyday functioning, most of us have at least one bad habit that can negatively impact our kidney health. Here’s what experts say is the absolute worst thing you can possibly do for your kidneys.

If you’ve been subsisting on fast food, your kidneys are begging you to please stop!

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“The worst thing you can do to harm your kidneys is to have a consistently poor diet that includes high salt and fast foods,” Dr. Koshy Abraham, MD, board-certified nephrologist at Fort Worth Renal Group, tells Parade.

Continue here: Parade