Readers ask: Can B12 Affect Kidneys?

In April, the Journal of the American Medical Association (JAMA) published a study that looked at whether high doses of B vitamins (folic acid, B12, B6) helped people with kidney disease due to diabetes. The study found that high doses of these vitamins were actually harmful.

Can too much B12 damage kidneys?

There is also some evidence suggesting that high doses of B12 may lead to negative health outcomes in those with diabetes or kidney disease.

Is B12 hard on your kidneys?

A: Vitamin B-12 is a water-soluble vitamin. Excess amounts of it (no matter how much you take) typically are just cleared by the kidney, so high levels of B-12 can occur if the kidneys aren’t working properly.

Does vitamin B12 help kidney function?

Although B12 supplementation reduces homocysteine levels in patients with CKD, it is less effective than in patients with normal renal function [5]. In patients on hemodialysis, continuous replacement of B12 is required to maintain lower homocysteine levels despite normal plasma B12 values [15].

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What vitamins are hard on your kidneys?

You may need to avoid some vitamins and minerals if you have kidney disease. Some of these include vitamins A, E and K. These vitamins are more likely to build up in your body and can cause harm if you have too much.

What are the symptoms of high B12 levels?

High doses of vitamin B-12, such as those used to treat a deficiency, might cause:

  • Headache.
  • Nausea and vomiting.
  • Diarrhea.
  • Fatigue or weakness.
  • Tingling sensation in hands and feet.

What is the best vitamin for kidneys?

Vitamins that are typically recommended for CKD patients: B1, B2, B6, B 12, folic acid, niacin, pantothenic acid, and biotin, as well as some vitamin C, are essential vitamins for people with CKD. Vitamin C may be suggested in low doses as large doses can cause a buildup of oxalate.

What is the best thing to drink for your kidneys?

Water. Water is the best thing to drink for kidney health because it gives your kidneys the fluids they need to function well, without sugar, caffeine, or other additives that do not benefit your kidneys. Drink four to six glasses of water every day for optimal kidney health.

Can too many vitamins hurt your kidneys?

But you can get too much of a good thing — one man developed permanent kidney damage after taking high doses of the “sunshine vitamin,” according to a recent case study. The case report, published Monday in the Canadian Medical Association Journal, highlights the risks of too much vitamin D.

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What are the signs that something is wrong with your kidneys?

Signs of Kidney Disease

  • You’re more tired, have less energy or are having trouble concentrating.
  • You’re having trouble sleeping.
  • You have dry and itchy skin.
  • You feel the need to urinate more often.
  • You see blood in your urine.
  • Your urine is foamy.
  • You’re experiencing persistent puffiness around your eyes.

Can you overdose on vitamin B12?

You cannot overdose on vitamin B12 because any excess you simply pee out. If you get b12 shots, you may experience side effects like dizziness, nausea, and fatigue. It is possible to have elevated B12 levels in blood tests, which may indicate cancer or diabetes.

Can kidneys repair themselves?

It was thought that kidney cells didn’t reproduce much once the organ was fully formed, but new research shows that the kidneys are regenerating and repairing themselves throughout life. Contrary to long-held beliefs, a new study shows that kidneys have the capacity to regenerate themselves.

Can vitamin D damage kidneys?

Taking too much vitamin D can cause problems such as constipation and nausea and, in more serious cases, kidney stones and kidney damage.

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