What are the side effects of vitamin D3?

Vitamin D3 overdose: myth or real danger?

High levels of the vitamin are usually not a risk to your health. Except that vitamin D3 is fat soluble. This means it builds up in your body. Should we be afraid of it? Not exactly.

For side effects such as hypercalciuria to occur, the overdose of vitamin D3 must be truly massive. It is unthinkable to reach it with sun or food. The risk of reaching it with supplements is very unlikely if you respect the dose prescribed by your doctor or pharmacist. Explanations.

When to talk about vitamin D3 overdose?

When you take cholecalciferol supplements, the effects are yours serum vitamin D3 is progressive, very progressive. It usually takes a few months to see a difference in your blood work. And there, even at a higher than average rate, the risk of side effects is limited.

In fact, according to Vidal’s seminal studies, a pathological risk exists when daily consumption exceeds 50,000 IU over a long period of time. In comparison, food supplements You can get 400 to 2,000 IU from your pharmacist.

What are the health consequences of an overdose of vitamin D3?

If the deficiency is widespread, overdose of vitamin D3 is much less. When the overdose is moderate, there are no long-term effects. Discontinuation of supplementation is sufficient to return serum vitamin D3 levels to normal.

However, data from massive post-war nutritional supplement campaigns suggests that massive and long-term overdoses leave consequences. Hypercalcemia and hypercalciuria affect your body’s kidney function. Even after vitamin D3 and calcium levels return to normal, some damage remains.

What are the side effects of vitamin D3 overdose?

A moderate overdose of vitamin D3 results in certain symptoms associated with hypercalcemia or hypercalciuria. Depending on the degree of overdose, they are more or less intense. Main symptoms of cholecalciferol excess or calcium is:

  • nausea;
  • headache;
  • muscle or bone pain;
  • heart rhythm disorders;
  • hypercalcemia (excess calcium in the blood);
  • hypercalciuria (excess calcium in the urine);
  • nephrocalcinosis (calcium deposition in the kidneys);
  • kidney stones.

Focus on prescribing vitamin D3 supplements to pregnant women

In pregnant women, vitamin D3 deficiency can have a huge impact on the unborn baby. Vitamin D3 supplementation is also common. but’administration of vitamin D3 supplements for pregnant women is debated. Indeed, an overdose of cholecalciferol can endanger the child. Again, only your doctor knows if a vitamin D3 supplement is right for you.

Vitamin D3 Supplements and Medications: Beware of Mixtures

If vitamin D3 supplement is not a medicine, it may interfere with certain medicines such as:

  • anticonvulsant drugs;
  • certain antibiotics;
  • certain anti-obesity drugs.

It is also not recommended to take vitamin D3 supplements in case of arrhythmia, kidney stones or severe renal failure. Ask your doctor for advice or your pharmacist.

It is safe to take vitamin D3 supplements to make up for the deficiency. If you take too high a dose, you can for a long time have too much calcium in the blood. Then you suffer from hypercalcemia or hypercalciuria. But rest assured, given the dosage prescribed by your doctor or pharmacist, this risk is unlikely.

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