Consuming an excessive amount of B vitamins causes certain side effects, which are the main indicators that we have exceeded their consumption.

By following a balanced and healthy diet, based above all on natural and fresh foods, we manage to provide our body with most of the different nutrients it needs to function properly every day and perform its most basic functions.

Therefore, following a healthy and balanced diet is essential to provide our body with the main vitamins and minerals that most foods provide in themselves.

However, when we consume too many foods with the same vitamin, or when we follow a balanced diet and take vitamin supplements, we can run the risk of certain side effects appearing in our body.

It is true that many of these vitamins are eliminated by our body and an excess in their consumption does not pose any problem, as with vitamin B (a vitamin complex among which we find B1, B2, B3, B5, B6, B9 and B12, in addition to the so-called choline, biotin and inositol) which, being water soluble, are expelled along with the urine.

But when an inappropriate type of these vitamins is consumed without a medical prescription, certain side effects appear in our body. Here is a brief summary of the different symptoms due to excessive consumption of B vitamins.

Side effects of excess vitamin B1 (thiamine)

  • Difficulties falling asleep and sleeping well.
  • Irritation of the skin.
  • Skin allergies.
  • High blood pressure.
  • Agitation.

Side effects of excess vitamin B2 (riboflavin)

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

Side effects of excess vitamin B3 (niacin)

  • Headaches.
  • High blood sugar and uric acid levels.
  • Liver dysfunction.
  • Stomach disorders and discomfort.
  • Low calcium levels.

Side effects of excess vitamin B5 (pantothenic acid)

  • Feeling tired.
  • Depression.
  • Joint pain.
  • Stomach flu.
  • Inadequate metabolism.
  • Loss of body fluids.

Side effects of excess vitamin B6 (pyridoxine)

  • Numbness in joints.
  • Mood disorders.
  • Depression.
  • Uncoordinated muscle movements.

Side effects of excess vitamin B9 (folic acid)

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

Side effects of excess vitamin B12 (cyanocobalamin)

  • Agitation, excitement.
  • Numbness in fingers and muscles of the face.

 

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