Are vitamins hard on the liver and kidneys?

Even at high doses, most vitamins have few adverse effects and do not harm the liver. As with medications, taking high doses of certain vitamins can stress the liver and even cause liver damage. Some vitamins, such as B-3, are especially hard on the liver, so your doctor may recommend regular liver function tests during vitamin therapy.

Because of the risk of liver damage and other harmful side effects, it's important to get your doctor's approval before taking vitamin supplements.


Minerals such as potassium, calcium, magnesium and phosphorus also have the potential to affect kidney function. 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 accumulate in the body and can cause harm if taken in excess.

Over time, they can lead to dizziness, nausea, and even death. You should only take these vitamins if your healthcare professional prescribes a prescription. There is also some concern about vitamin C. While some people may need to take a low dose of vitamin C, high doses can cause a build-up of oxalate in people with kidney disease.

Oxalate can remain in bones and soft tissues, which can cause pain and other problems over time. It's common among athletes and bodybuilders to take sports dietary supplements to burn fat and increase performance, muscle mass, or strength. Sports nutrition supplements are available in a variety of forms, including tablets, capsules, liquids, powders, and bars. However, regular use of supplements has been shown to impair normal liver function, leading to liver injury and disease.

Eating more protein than your body needs can put extra pressure on your liver, according to a study. This extra workload can ultimately lead to liver damage. Patients with hepatic encephalopathy may have negative effects from eating too much protein. This situation could be the result of serious liver disease.

Before taking protein supplements, especially whey protein, see your doctor if you have liver disease or another medical condition. Iron supplementation in people who already have enough iron in their body can cause symptoms that can begin with vomiting, diarrhea, and abdominal pain, and develop into hemochromatosis and liver failure. Scarring caused by liver disease and other factors, such as alcohol use disorder, is known as cirrhosis. Excessive intake of nutrients through sports nutrition can cause patients to gain weight, which can subsequently lead to fatty liver disease, non-alcoholic steatohepatitis (NASH) and, in some cases, cirrhosis.

Herbal supplements and vitamin supplements, such as chaparral, comfrey tea, iron, and vitamin A, are known to cause high levels of liver enzymes. Because excess amounts of these vitamins are not eliminated quickly from the body as is the case with water-soluble vitamins such as vitamin C, fat-soluble vitamins can accumulate in the liver and cause health problems if consumed in excess. Overuse of these supplements damages the liver and causes several problems, including severe cholestatic hepatitis, which can take months to resolve. In resource-rich countries, where vitamin A intake is generally adequate, supplementation is not usually recommended for disease prevention.

People with healthy kidneys who eat a variety of foods from all food groups (meats, grains, fruits, vegetables, and dairy products) can get enough vitamins and minerals. So you may not be getting all the vitamins and minerals you need every day, so you may need to take some in the form of supplements. Your healthcare professional and kidney dietitian can help you determine what vitamins and minerals you may need by looking at your health history and blood tests. A review found that 20% of drug-induced liver damage is now believed to be attributable to dietary supplements.

In the following video, Rajiv Lochan, Principal Consultant for BPH and Liver Transplant Surgery at Manipal Hospitals, shares information about the importance of liver function and how to maintain a healthy liver. Products that promise to drastically change your sports performance or significantly increase the amount of muscle you have can be very harmful to your overall health and to your liver in particular. Eating a wide variety of healthy foods is the best way to get all the vitamins you need, according to MedlinePlus. Fat-soluble vitamins, including vitamins A, E, D, and K, are stored in the liver and fat tissues of the body.

Supplements used in bodybuilding or weight loss can be particularly harmful to the liver, as they attempt to alter the metabolic processes in which the liver plays a role. Upon further questioning, the patient revealed that he had been chronically taking large doses, up to 30 days a day, of niacin, vitamin C, vitamin B12, calcium, zinc, vitamin B6, magnesium, vitamin D3, vitamin E, vitamin B complex, vitamin A and ginkgo biloba. .

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