What Happens if You Consume too Much Vitamin D

· January 26, 2018
Vitamin D poisoning usually doesn't show any symptoms and can fortunately easily be reversed. Since it's not easy to detect, it's important to go see a specialist if you have doubts.

Consuming vitamins is essential to keep you healthy, energetic, active and full of life. However, you may not be aware that even these supplements should only be consumed in certain quantities, because consuming too much of certain vitamins like vitamin D may be harmful.

When you start taking vitamins, it is necessary to check how much you need and what the established daily limit that you can take is. You shouldn’t just go to the pharmacy, buy a vial of medicine and take it without prior knowledge or advice.

Remember: many foods and beverages contain the amount of vitamins you need during the day. Thus, taking a supplement doesn’t always make sense and could be harmful to your health.

After all, any and all excesses are harmful.

Vitamin D comes from the synthesis of cholesterol thanks to the sun’s rays. Some people receive enough sunlight and they feed themselves in such a way that it allows them to have their reserves full.

However, others need a vitamin supplement to supplement their low consumption of this nutrient. The error, however, is in taking it without medical prescription and in any dose.

At a certain point, it can cause poisoning. Today, we’ll take a look at just that.

Vitamin D poisoning

too much vitamin D

Vitamin D does not dissolve in water, making it difficult for the body to get rid of it. Therefore, it accumulates. This nutrient works like a steroid hormone and is found circulating inside cells.


When there is an excess in the body, the places in which the vitamin can be housed – such as the protein receptors and carriers – fill up and can’t successfully bind with it.

From the moment the compound is released in the body, it begins to increase the absorption of calcium in the intestine. This causes hypercalcemia. Other affected sites are soft organs such as the lungs, kidneys and heart.

Some minor conditions that may also occur are:

  • Nausea and vomiting
  • Constipation
  • Muscle fatigue and bone pain
  • Anxiety and depression
  • Confusion

The recommended daily intake of vitamin D should be less than 4000 IU. However, the likelihood of Vitamin D poisoning by ingesting too much through food or sunlight is minimal.

For poisoning to occur, the patient must have a level above 150 ng / ml (375 nmol / l) present in the blood.

Fortunately, almost all cases of toxicity are reversible. Plus, very few cause calcification of the arteries or renal failure.

Symptoms of poisoning

Symptoms of poisoning

Occasionally, vitamin D toxicity doesn’t present symptoms. However, in moderate cases some of the following conditions are present:

  • Hypercalcemia
  • Nausea and vomiting
  • Constipation
  • Anxiety
  • Weakness
  • Altered consciousness
  • High blood pressure
  • Renal insufficiency
  • Hearing loss

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Steps to eliminate vitamin D toxicity

Method to eliminate vitamin D toxicity

  • First, you must have a medical consultation. There, your doctor will prescribe the necessary tests to detect the levels of the substance in the blood. It’s important not to go to the laboratory without first checking with a doctor.
  • If you have abnormally high levels, eliminate vitamin D supplements. Even when consuming 10,000 IU per day, the risk of toxicity is low. However, it’s better to keep the intake below 4000. In the case of children and older adults, 700 IU per day is sufficient.
  • You must be aware of how much vitamin D you consume per day. If you have enough exposure to the sun’s rays, it’s not necessary to take a supplement. Generally, this supplement is for people who live in places where there is little sunlight.
  • Evaluate your food intake. Fish, beans, fortified milk or orange juice, among others, can provide between 600 and 1000 IU per serving. This, plus exposure, is enough for your body.
  • It’s also necessary to reduce your consumption of supplements or foods rich in calcium.
  • Meanwhile, increase your intake of products that contain sodium, as well as liquids.

It should be noted that excess vitamin D can take months and even years to manifest, so it becomes a difficult disease to detect. You have to learn to differentiate your symptoms from other diseases and be prepared for any change.