It is safe to take Vitamin D orally in an amount prescribed by the doctor. Most people who take Vitamin D do not have any side effects. However, you may experience some side effects if you take excess amount of Vitamin D in the form of supplements. If you take more than 4000 units of Vitamin D daily for a long time, it is highly unsafe.
It can lead to an increase in blood calcium. It is important to treat Vitamin D deficiency under the guidance of a doctor, who can analyze and recommend the right dose of Vitamin D for a particular patient. Excess intake of Vitamin D through supplements can cause many health problems. Some common side effects of Vitamin D supplements are as follows.
Side Effects Of Vitamin D Supplements
Excess intake of Vitamin D supplements can cause toxicity. Symptoms of Vitamin D toxicity are weakness, fatigue, bone pain, itchy skin, muscle problems, kidney damage and mood changes. You can have sleepiness, headache and metallic taste.Vitamin D supplements can cause thinking problems, irritability, chest pain, behavior changes and shortness of breath.
Excess intake of Vitamin D supplements can increase the blood calcium levels, which causes symptoms of upset stomach. There can be nausea, vomiting and constipation. Some patients can have diarrhea. There is loss of appetite and weight loss.
Vitamin D supplements can cause increased thirst due to which the patients feel dryness and irritation in the mouth and throat. There is an urge to drink excess amount of fluids.
When the patient drinks more fluids, it causes increased urination. Some people can have problem due to increased urination.
Harm to Infants
Women who are pregnant and breast-feeding should take less than 4000 units of Vitamin D daily. If they increase the intake of Vitamin D more than this amount, it can be very dangerous for the infant. Excess Vitamin D intake can be harmful for the infant.
When you take excess amount of Vitamin D, excess calcium is absorbed by the intestines and this extra calcium is released in the blood. It leads to an increase in blood calcium. This causes artery hardening in patients who are suffering from kidney disease.
When kidneys do not balance the calcium levels, it leads to a bone disease called osteodystrophy. Excess blood calcium also causes deposition of calcium in the soft tissues of the body. There is calcium deposition in heart and lungs. This causes many health problems. Therefore, it is important to avoid taking excess Vitamin D supplements so that excess calcium does not cause health problems.
Patients who are suffering from sarcoidosis can have increased blood calcium due to excess intake of Vitamin D. Excess Vitamin D intake and the consequent increase in blood calcium can be dangerous for patients who are suffering from histoplasmosis. Such patients have a risk of developing kidney stones. It can cause many other health problems. Excess intake of Vitamin D through supplements can cause an increase in blood calcium in patients who are suffering from hyperparathyroidism. Vitamin D intake can also cause problems for patients who are suffering from lymphoma. Such patients have a risk of developing kidney stones. It can also cause many other health problems.