Main menu


The disadvantages of excessive use of supplements and vitamins .. may lead to poisoning

Vitamins are essential nutrients that keep the body healthy, but too much of any vitamin can cause serious health problems, a condition commonly referred to as hypervitaminosis, or vitamin toxicity.

According to a verywellhealth report, misuse of vitamin supplements can be very dangerous. Some medications can also increase the risk of vitamin toxicity, either by increasing the body's absorption of the vitamin or by containing vitamin-based compounds.

The disadvantages of excessive use of supplements and vitamins

Vitamin A

Vitamin A is used by the body to enhance vision, immune system response, and normal organ function when consumed in moderate amounts. It is found in high concentrations in animal liver, kidneys, and fish oil, and in moderate concentrations in dairy products and eggs. Vegetables such as sweet potatoes and carrots are also moderate sources of vitamin A.

Vitamin A toxicity most commonly affects the skin, resulting in redness, irritation and patchy peeling. Chronic and excessive use of the supplements may lead to more severe symptoms, including:

Pressure changes in the skull

Vision changes




Bone pain


B vitamins

Most of the B vitamins are important to the metabolism with functions associated with healthy skin, hair, brain, and muscles, fortunately, with the exception of vitamins B3 and B6, the vitamins' significant toxicity is not linked to their overuse.

Vitamin B1

Vitamin B1, also known as thiamine, is found in beef, pork, whole grains, legumes, nuts, and sunflower seeds. The recommended daily allowance for adults is 1.2 mg for men and 1.1 mg for women. Vitamin B1 is not known to be toxic in high doses.

Vitamin B3

Vitamin B3, also known as niacin, is found in meat, fish, whole grains, and leafy greens.The daily recommended intake for adults is 16 mg for men and 14 mg for women.Pregnant women should avoid taking too much vitamin B3 because it can cause birth defects.

Vitamin B12

Vitamin B12 is found in dairy products, eggs, fish, poultry, and meat. The recommended daily allowance for adults is 2.4 mcg. Vitamin B12 has not been shown to be toxic in high doses.

Vitamin C

The body uses it as an antioxidant to prevent cell damage and also for the growth and repair of tissues in the body. It is found in citrus fruits, potatoes, peppers, and vegetables. Vitamin C is not usually toxic, but large doses of 2000 mg per day can affect digestion, causing diarrhea, cramps and nausea.

Vitamin D

Vitamin D helps absorb calcium and build up bones.Preliminary vitamin D can be produced in the skin, but as more people spend most of their time indoors or live in latitudes with low sun seasonally, sunlit skin alone may not provide all of the vitamin D. What is needed, Vitamin D is found in many foods such as fortified milk, fortified juice, cereals and fish and is available as a dietary supplement.

Taking 100 micrograms (10,000 IU) or more daily as vitamin D supplements may lead to a risk of vitamin D poisoning, resulting in abnormally high levels of calcium in the blood.Symptoms may include kidney stones, nausea, frequent vomiting, constipation, excessive thirst, urination, confusion, and weight loss. . It has also been linked to a risk of cancer, heart problems and an increased risk of bone fractures.