Take note of the side effects of vitamin B

Our body is capable to sintering some vitamins and not others. The lack of vitamin B in anyone’s body damages their health. So it is necessary to consume it and include it in the daily diet. In addition to that, it is important to know the side effects of vitamin B.

side effects of vitamin B

Side effects of vitamin B

They occur when too many foods are consumed that contain the same vitamin or when following diets and taking vitamin supplements. In this way, an excess is generated.

It is true that the vitamins of vitamin B complex are expelled from the body through urine because they are soluble. But by consuming them inappropriately exceeding nutritional needs, they lead to negative effects on health.

Therefore, you must manage your intake properly. To know the side effects of excessive consumption of vitamin B, we bring you the following information.


It is also called thiamine. This is found in foods with yeast, cereals, grains, beans, meats and nuts. Those who take this vitamin often suffer from diseases such as inflammation in the nerves. In normal amounts, it relieves digestive problems and strengthens the immune system.

Other diseases such as diabetes, brain damage, mouth ulcers, cataracts and glaucoma need vitamin B1. Some people use it to increase energy, concentration and prevent degenerative diseases.

Side effects of thiamine

The side effects of vitamin B1 are expressed in skin irritations and some allergies. Although, in itself, this vitamin is quite safe, it only affects one in 1000 people. One of the diseases that can trigger an overdose of thiamine is hyperthyroidism. It symptoms are:

  • Irritation on the skin
  • Difficulties to sleep well
  • High blood pressure
  • Skin allergies
  • Agitation.

Vitamin B2

Riboflavin or vitamin B2 is a water-soluble vitamin that is also known as lactoflavin. It is sensitive in some environmental conditions and alkaline media. During a sun exposure of at least two hours, the loss of up to 85% of this vitamin may occur.

It is a yellow substance that is used as a natural colorant or food additive. In addition, it helps the activation of vitamin B6 and folic acid, which is essential for growth. Red, white and platelet cells are formed thanks to Riboflavin.

Adverse consequences of Riboflavin

The side effects of vitamin B2 are related to sun exposure or ultraviolet light. This would cause cataracts or liver dysfunction, which represents damage to the liver and cells. Another possible health problem is the breakdown of the DNA strip when chromium occurs. Some of the signs are:

  • Feeling tired
  • Low blood pressure
  • Nausea and vomiting.

Vitamin B3

Participates in the circulation and segregation of hormones. Niacin or vitamin B3 is obtained mostly from the diet. However, there are supplements that are prescribed to treat health problems such as the disorder of cholesterol levels.

Side effects of Niacin

Whenever side effects of vitamin B3 are generated, skin rash or reddening is observed. You may notice redness on the face, neck and ears. However, it is not something so serious. You only have to regulate your consumption and, in some cases, consult with the doctor. Other effects are:

  • Levels of sugar and high uric acid in the blood
  • Headaches
  • Liver dysfunction
  • Low levels of calcium
  • Disorders or discomfort in the stomach.

vitamin b5 food

Vitamin B5

The pantothenic acid or vitamin B5 is distributed throughout the body, part of coenzyme A. Responsible for the metabolism to produce energy. One of the factors that hinders its absorption in the body is the excessive consumption of alcohol.

It is essential for metabolizing foods such as proteins, carbohydrates and fats. In fact, it participates actively in obtaining energy, through chemical reactions. In addition, it has an important role in the systematization of cholesterol and hormones.

Secondary consequences of pantothenic acid

The doses of pantothenic acid are 5 milligrams per day. When ingesting more than the recommended amount it is common to cause diarrhea. This occurs because vitamin B5 increases the mobility of the intestinal tract. When there is a stomach or intestinal blockage, the condition gets worse. These are other symptoms:

  • Depression
  • Feeling tired
  • Articulations pain
  • Inadequate metabolism
  • Gastroenteritis
  • Loss of body fluids.

Vitamin B6

It is used in the treatment of anemia. Also when you suffer from heart disease, blood vessels, high cholesterol, blood pressure and strokes.

In addition, it helps reduce levels of homocysteine found in the blood and linked to heart disease. The blocked arteries can also notice improvement with the consumption of vitamin B6. It is also an active ingredient in medications to relieve the symptoms of premenstrual syndrome.

Pyridoxine and its negative consequences

They consist of skin rashes, allergies, hives and itching on the face, tongue and lips. Other effects are related to sudden vomiting and nausea. Seizures and pain or numbness of the body may occur. In addition, it usually causes:

  • Flatulence
  • Renal insufficiency
  • Stomach disorders
  • Nausea and vomiting
  • Decreased appetite
  • High cholesterol.

vitamin b12 food

Vitamin B12

Cobalamin or vitamin B12 is one of the necessary components for the cellular and regenerative activity of the organism. It contributes to the formation of red blood cells and keeps the central nervous system. It is found in foods of animal origin such as fish, liver, red meats, crustaceans and dairy products.

Harmful effects of Cobalamin

Vitamin B12, even in large quantities, is usually toxic, although it does cause side effects. In fact, when taken in food supplements, the adverse effects are even less likely. Instead, via injection, the damage to health can increase.

Some harmful effects are associated with panic attacks, diarrhea anxiety, heart palpitations and insomnia. Among other consequences are respiratory problems, rashes, urticaria, chest pain and itchy skin. The latter occur when it is injected.

As you already know, the negative impact is not serious, simply an indicator that something is not right. In any case, you must regulate the consumption. The vitamin B complex are necessary for the development of body cells and energy. Consume the correct amounts and you will not have to worry about any of these symptoms.