Allergy to vitamin C: symptoms and treatment


It is known that vitamin C is one of the most important components for the human body. But, despite its beneficial properties, it belongs to hypoallergenic substances. Food or drug allergy to ascorbic acid occurs in people regardless of age. It gives people a lot of trouble - you have to give up many products, carefully study the instructions for each drug, and so on.

Detailed information about Ascorbic acid is here.

Causes of Allergies

According to scientists, the true allergy to the so-called "ascorbic" occurs only in people with a deficiency of such an enzyme as glucose-phosphate dehydrogenase. It can manifest itself on chemicals with vitamin C supplements that process fruit. In other cases, ascorbic acid provokes psychological intolerance in people, pseudo-allergies and so on.

According to the theory of some researchers, askorbinka reduces seasonal allergic manifestations, thereby suppressing the severe form of allergy (anaphylaxis).

Often, an allergic reaction to vitamin C develops due to the inappropriate use of vitamin complexes. Ascorbic acid is not absorbed in the intestine, resulting in a shortage of this enzyme and people have allergy symptoms. This case is quite rare and is called component intolerance.

People may have a hereditary predisposition to hypersensitivity. So during the contact with the allergen, immune cells and proteins accumulate, as a result, an immune reaction occurs.

It also happens that the reaction is provoked by concentrated ascorbic acid, administered intramuscularly or intravenously.

Details on Allergies are here.

How to recognize childhood allergies

Most often, an allergic reaction is observed in children who are breastfed. Allergen enters the body of the child along with the mother's milk and causes a number of dysfunctions, namely:

  • Redness and effusion on the skin, in rare cases eczema
  • Intestinal problems, frequent regurgitation in infants
  • Excessive sleepiness
  • The appearance of a runny nose or cough after feeding
  • Pruritus

Parents should carefully observe how the baby reacts to breast milk, since even a small amount of acid can cause a reaction! It is necessary to introduce lactation for infants with great care - no more than one new product per week. So it will be much easier to identify which particular product the baby responded to.

In older children, allergic symptoms usually occur after eating citrus fruits. Noticing even the slightest of them, it is recommended to completely eliminate from the diet foods and preparations containing the allergen.

In the mild form of the disease, it is sometimes sufficient to eliminate the allergen, and the symptoms disappear. If this does not help, you will need medical help. Physicians, as a rule, prescribe antihistamines, immunomodulators, enterosorbents.

It is necessary to intelligently give ascorbic to children, since its excess in the children's organism affects the weak nervous system. It is desirable to select a complex of vitamins for children with the permission of the doctor, as the child has an individual intolerance of vitamins even when they are taken in small doses.

Methods for detecting allergies in adults

Statistics show that most adults seek medical help only at the peak of the intensity of allergic symptoms. An overdose of vitamin C leads to an increase in blood pressure, blood sugar levels, in some cases, sleep disturbances, nausea, and vomiting. In pregnant women, a surplus of this component is also accompanied by stomach cramps. To make an accurate diagnosis, first of all, you need to make allergy tests.

The most vulnerable to allergic effects are:

  • People with diabetes
  • Women during pregnancy
  • Patients with internal diseases
  • Hypertensives.

Having noticed the first signs of an allergic reaction, you should immediately contact a doctor and begin treatment in order to avoid complications in the future.

The following signs indicate intolerance to ascorbic acid:

  • The appearance of rashes, blisters on the skin
  • Excessive sweating
  • Runny or stuffy nose
  • Hot flashes
  • Pruritus in various forms of manifestation
  • Teariness and redness of the eyes.

When food allergies in adults have the following symptoms:

  • Swelling of the lips, tongue
  • Stomach upset.

A severe form of the disease is accompanied by difficulty in breathing, anaphylactic shock and angioedema.

In some cases, there is a rapid development of the inflammatory process - within minutes, pulmonary edema occurs, and the person cannot breathe. Only emergency care of doctors can save a person in such a situation. It is important to know that during such an attack you need to take an antihistamine.

The intensity of the inflammatory manifestations depends on how the allergen has entered the body. There are two options:

  • Allergen enters the body with food
  • As a result of the use of medicines or cosmetics, which include the appropriate component.

For example, having bought a new cream, you should apply it on a small area of ​​skin to check if there is a reaction to it.

Preventive methods

In order to avoid unpleasant symptoms, it is recommended to balance the diet, do not take more than 2000 mg of ascorbinka per day. What is important is a healthy lifestyle, exercise and full sleep.

If a person has ever had a reaction to vitamin C, in order to avoid relapse, it is worth limiting the use of the following products:

  • Oranges
  • Strawberry, raspberry, strawberry
  • Chilli
  • Cabbage and leafy vegetables.

If you do not start treatment in time, the body will begin irreversible processes that contribute to a rapid deterioration in health. The chronic form of the disease not only reduces physical activity, but can be life-threatening!

It should be remembered that the simultaneous intake of ascorbic acid and aspirin can provoke gastritis or gastric ulcer. In addition, you do not need to engage in self-treatment, and take medications only as directed by the doctor.

Ascorbic Acid - Allergen

Allergic intolerance to vitamin C is considered a rare variant of drug allergy. Even if rashes and other allergy-like symptoms appear after eating foods rich in ascorbic acid (kiwi, paprika, citrus, sea buckthorn, etc.), then by no means in all cases they are provoked by this substance. Moreover, some researchers even claim that ascorbic acid can reduce seasonal allergic reactions and suppress the serious clinical form of allergy, anaphylaxis. The results of their work demonstrate how vitamin C lowers the release of the substance histamine that is involved in the development of the true allergy from particular cells called fat cells.


Scientists believe that true allergy to ascorbic acid is possible only in people who have a deficiency in the body of a special enzyme called glucose-6-phosphate dehydrogenase. The rest of the vitamin C provokes processes with other, non-immune mechanisms (pseudo-allergies, psychological intolerance, etc.). Symptoms of an allergy to vitamin C in a patient manifest after the ingestion of food with a high content of a given substrate or medication, the chemical composition of which includes ascorbic acid. Most often appear:

  • skin rash (blisters, nodules, blisters, etc.),
  • hemorrhage
  • reddening of the skin (some parts of the red can merge),
  • itching of varying severity,
  • swelling of the lips and tongue (in the form of food allergies)
  • diarrhea (with food allergies),
  • runny nose
  • nasal congestion,
  • red eyes and tearing,
  • difficulty breathing
  • Quincke's edema (rare)
  • anaphylactic shock (rare).

Their occurrence has a clear chronological relationship with the allergen. The severity of most of these symptoms are often mild or moderate. After elimination (elimination) of this cause-significant allergen (vitamin C), the clinical manifestations of allergic intolerance completely disappear or significantly decrease.

Medical tactic

Treatment of allergic intolerance to vitamin C (especially if it is undoubtedly confirmed) usually begins with the elimination of this allergen. Food with necessarily exclude foods with a large amount of this vitamin. These are pineapples, citrus fruits, black currants, onions, bell peppers, cabbage, wild rose, parsley, wild garlic, dill, etc. In addition, you can reduce the amount of ascorbinki by subjecting the listed products to thermal cooking, which leads to the destruction of the vitamin due to its oxidation . This is especially promoted by boiling with the lid open, grinding food, laying it in cool water, prolonged heating.

If the symptoms develop on the background of taking drugs or biological supplements with ascorbic acid (multivitamins, etc.), then they will certainly be canceled. Drug treatment of allergy to vitamin C is indicated for moderate and severe cases. In milder forms, interruption of contact with the allergen is sometimes sufficient, after which all clinical signs disappear quickly. If you have to resort to the help of pharmacological agents, then doctors, as a rule, prescribe:

  • antihistamines (Erius, tavegil, akrivastin, dimedrol, allertek, etc.),
  • enterosorbents (enterosgel, lactofiltrum, polysorb, polyphepanum, etc.), which attract the allergen to themselves, expel it through the intestines from the body and fix the chair,
  • epinephrine, which is used only in life-threatening conditions,
  • glucocorticosteroid hormones (methylprednisolone, flucinere, dexamethasone, etc.), which are shown as ointments, sprays, tablets or solutions only in difficult situations,
  • Cromons (nalkrom, intal, etc.) for respiratory disorders,
  • immunomodulators (vilozen, antiallergic immunoglobulin, taktivin, etc.).

In the future, it is advisable for such patients or their parents to carefully consider their diet and culinary processing. They need to avoid vitamin and other drugs with ascorbic acid. To do this, you should always carefully study the instructions attached to the medication.