How do you know if you have a food allergy?

While most of the allergic reactions Due to food are mild or of little gravity, it is also true that if too much is consumed products that do not do us well, can trigger something more serious. How do you know if you have allergy To food? Find out in this article.

Knowing food allergy

First of all, it is good to know what a food allergy is all about. Basically, it is an exaggerated response from the immune system By the consumption of something in particular.

It is necessary to differentiate it from intolerance to a food, which is not the same as allergy, although it is also an undesirable and annoying effect when making the digestion of food. Nor is it the same as poisoning, which is produced by a food in poor condition or by eating too much.

The products that most allergies usually produce are:

  • The dairy (especially the milk)
  • the eggs
  • The seafood
  • the nuts
  • Peanut
  • the soy
  • the wheat
  • he chocolate

In turn, dyes, preservatives and thickeners can also cause allergic reactions. As regards natural products, apple, pineapple and melon contain substances similar to pollens and the allergic reaction appears when consumed raw. It may be milder or more severe depending on the amount consumed.

The body's response to something that does not do it right, be it a bacterium, a virus, a toxin or a food, is to defend itself. On this last case, Substances are released through the pores, for example, or the mouth or tongue is inflamed.

The initial symptoms of a allergy Two hours after ingesting the food in question. Among the most frequent signs we find:

  • hoarsely
  • urticaria
  • Wheezing
  • abdominal pain
  • Itching in the mouth
  • throat
  • Eyes
  • skin
  • diarrhea
  • dizziness
  • Difficulty swallowing
  • nasal congestion
  • sickness
  • Swelling on face lips and tongue
  • Colic
  • Vomiting.

Different food allergies

In order to know whether or not we are allergic to a particular type of food we must know some characteristics:

Allergy to milk (or dairy)

It is an adverse reaction of the body to the proteins that have the milk . Cow's milk has 25 different proteins, which can be caseins or serum. The former are the most allergic and there are three types. If a person is allergic to milk they will show symptoms during the first year of life.

In most cases it is due to an inherited tendency , That is, that is transmitted from parents to children. The symptoms of allergy to milk are pruritus, erythema, urticaria, edema in eyelids or lips, nausea, colic, diarrhea, dysphonia or rejection of food.

Allergy to the egg

It can cause different symptoms, as detailed above, so you have to pay attention to see when they appear. In the case of egg , Some people suffer allergy because of their large amount of protein.


Allergy to seafood or fish

The clinical picture appears 90 minutes after ingestion and is characterized by vomiting, diarrhea, hypotension or abdominal distension. Fish allergens are present in species such as hake, blue whiting, mackerel, bonito tuna and swordfish, as well as seafood (oysters, mussels, shrimp).

Allergy arises during the first years of a person's life and Not only appears when eating, but also when having contact Direct with the piece in the house or in the market.

Allergy to certain fruits and vegetables

They are less frequent than milk or fish, but they must also be taken into account. Genetic predisposition is one of the most recurrent causes of allergy to these foods. Consideration should also be given to the geographical location and quantity of protein in each fruit or vegetable .

It does not have anything to do that the food is organic or not, although it is true that in the case of being industrial agriculture can generate more problems in an allergic person.

The peach is one of the species that most allergy produces , Followed by the apple, the pear, the cherry, the plum, the strawberry, the kiwi, the mango and the pineapple. In the case of vegetables, the most allergenic is the tomato, followed by lettuce, cabbage, eggplant or pepper.

Allergy to nuts, legumes and cereals

It is more frequent than we think, but not all people realize it. It appears in the first years of life and in the case of nuts, the one that produces the most allergies is the peanut. Legumes and cereals have a lower incidence In patients.

Wheat (used in many preparations) can cause problems in the digestive tract, stomach, or skin. And as far as the vegetables , Allergens are more present in soybeans, lentils, chickpeas and green beans.

The only possible treatment in case of being allergic to one or several foods is to stop consuming them or to be in contact with them. Once the cause of the allergy is detected, the intake should be eliminated, however much we like or use it enough in our menus. There are different ways of supplanting food, so do not worry.

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