When you take any supplement, you are at risk of developing various reactions. Vitamins affect different people in different ways. Reactions can develop as a result of an allergic reaction, drug interactions or an overdose, according to Drugs.com. Healthy individuals should not experience adverse reactions while taking vitamins. If you do, talk with your doctor to identify the issue and treat it. If you experience unwanted reactions while taking vitamins, discontinue use until further recommendations from your physician.
General Side Effects
MedlinePlus states that the most common side effects of taking vitamins are a bad taste in the mouth and an upset stomach. If you experience either of these symptoms, try taking the vitamin supplement with food. The food will help protect the stomach from the high concentration of minerals and vitamins. If these common side effects worsen or become severe, talk with your doctor.
Allergy Consideration
An allergic reaction to vitamins is uncommon but it is possible. During a vitamin allergy the body mistakes the vitamin as a harmful substance and begins to attack it. Part of the defending the body is the creation of IgE antibodies that attempt to fight off the vitamin. Heightened levels of these antibodies in the blood cause cells in the body to produce histamine, according to the American Academy of Allergy, Asthma and Immunology. Histamine is the chemical that causes most allergy symptoms.
Vitamin Allergy Symptoms
If you experience an allergic reaction to vitamins, you will experience the following symptoms: nausea, sneezing, headaches, rashes, itchiness, stomach cramping, diarrhea, nasal congestion, fatigue and shortness of breathe, according to Health Tree. A severe allergic reaction to vitamins is a serious condition that can lead to death, if not properly treated. Symptoms of a severe allergic reaction are mental confusion, a rapid heart rate, decrease in blood pressure and hives. Call 911 if these symptoms develop.
Overdose Reaction
An overdose of vitamins can cause adverse reactions. Certain vitamins are more serious than others. If you think you've overdosed on vitamins A, D, E or K, call 911 and seek emergency medical treatment. Too much of these vitamins can lead to life-threatening side effects, according to Drugs.com. Common symptoms from a vitamin overdose include loss of appetite, peeling skin, stomach pain, vomiting, constipation, diarrhea and weight loss.
Precaution
MedlinePlus recommends informing your doctor if you are allergic to other drugs or substances, if you're currently taking any other drugs and if you're are pregnant, could become pregnant or are breastfeeding.
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