1. What is food intolerance?
The earliest systematic description of human intolerance to food was in 1905 when a British doctor discovered that many chronic diseases such as gout, eczema, and angina were associated with food, and the symptoms disappeared after removing the problematic food.
Nowadays, the medical definition of food intolerance is a complex hypersensitive disease. It is commonly said that the immune system of the human body regards one or more kinds of food we eat as harmful substances, thus producing an excessive protective immune response to these substances, which produces a substance. Immunoglobulin G, an antibody, forms an immune complex with food particles, which causes inflammation in various tissues of the human body and food intolerance.
2. How does this food intolerance occur?
At present, food intolerance is a research hotspot at home and abroad, but there are still differences in its pathogenesis. Now widely recognized is the mechanism described by Dr. Fooker, a German scientist who believes that food should be digested after entering the digestive tract. Amino acid, glycerol and monosaccharide levels.
This can be completely converted into energy to provide the body with the needs, but many foods, because of the lack of the corresponding enzymes, can not be completely digested by the human body, enter the intestine in the form of peptides or other macromolecules, where they are recognized by the body as invaders, resulting in immunity The reaction takes place. These immune complexes can cause secondary blood pressure rise, cholesterol deposition, edema and overweight, and the resulting diseases are similar to chronic diseases such as allergies, autoimmune diseases, frequent infections, and rheumatoid arthritis.
3. What are the characteristics of food intolerance?
(1) Symptoms appear within 24 hours after eating or appear within a few days;
(2) often accompanied by chronic symptoms such as "asthma", eczema, migraine, intestinal irritation, arthritis, fatigue, etc.;
(3) maybe caused by a combination of multiple foods;
(4) It is difficult to find intolerant food sources through traditional methods.
4. Is this food intolerance often occurring?
At present, there is no large sample survey data on the incidence of food intolerance in China. In 2001, a dietitian abroad surveyed more than 17,000 adults in 15 countries and found that the incidence of food intolerance was 12 %.
A British scientist surveyed more than 2,500 people with food intolerance, 44% of whom suffered from chronic diarrhea, abdominal pain, ulcers, and indigestion; 16% suffered from skin rashes, erythema and itching; and 12% suffered from migraine and insomnia. In all, 69% of the cases were chronic diseases.
5. Is drinking milk intolerance?
Drinking milk and stomach is a food intolerance, and it can be said that lactose intolerance. Some people have bloating, diarrhea, abdominal pain, and other troubles after drinking pure milk. Just like Lenard in the drama "Big Bang", which is especially popular among young friends, eating a small bite of lactose-containing food begins to cause abdominal pain.
This is because he lacks the lactase that breaks down lactose. The lactose in milk enters the colon and is fermented by bacteria to form short-chain organic acids (such as acetic acid, propionic acid, etc.) and gases (such as methane, hydrogen, carbon dioxide, etc.), thus causing the intestines. Nasal, abdominal pain, rectal exhaust, and diarrhea. Such friends can be replaced with yogurt, absorb the soy milk nutrition , and lactose-removing milk.
6, Sometimes the headache is severe after drinking. Is that counted?
This problem cannot be generalized. The causes of headaches after drinking are various. It may be due to high blood pressure, blood pressure, cerebrovascular contraction, etc. It is also possible that some people suffer from alcohol intolerance and cause migraines...
In recent years, more and more studies have confirmed that diet and children's headaches are closely related to adult migraines, and there are liquors and beer in foods that can cause migraines. Therefore, it is better to drink less alcohol.
7. Are skin allergies also manifestations of intolerance?
There are many symptoms of skin allergies, and the causes are also very different, but the symptoms of food intolerance are also manifested in the skin. The probability of skin manifestations in previously mentioned food intolerance patients is 16%.
Therefore, when our skin appears erythema, rash, urticaria, itching, etc., after eliminating skincare allergies, solar dermatitis, and other reasons, we should also think that it may be a food intolerance.
8. How to distinguish between food intolerance or food allergy?
Both skin and gastrointestinal symptoms are similar and maybe urticaria and diarrhea. However, food allergies are usually caused by natural proteins. Generally, there are symptoms of skin and gastrointestinal tract within 2 hours after a meal, and food intolerance may occur on the same day. It may take several days to have symptoms and may be caused by a variety of foods.
The main difference is the result of a blood test. Food intolerance is generally high in IgG, and food allergy is high in IgE.
9, Can it be cured? How to treat it?
As long as you find a source of diet and make dietary adjustments, you can treat them completely.
The first step of treatment: the detection of food intolerance is to take 1ml of a patient's blood for laboratory measurement. At present, 14 primary screening and further 90 food intolerance tests can be made in China.
Step 2: According to the test results, the food is graded. The negative foods are classified as safe and can be eaten normally. The positive foods can be divided into fasting or rotating. If there are a few types of foods that are intolerant, all fast. If there are too many foods that are not tolerated, food will be included in the rotation and other fastings.
There are two other points to pay special attention to:
First, not only to avoid intolerance to food but also to avoid all kinds of foods that are intolerant to food ingredients, such as milk intolerance, then ice cream, butter, chocolate, etc. can not be eaten.
Second, try other foods that may not be eaten regularly to maintain a balanced diet. For example, you can't eat beef and mutton. You can eat iron, animal viscera and other iron-rich foods to ensure iron intake. In general, after a period of strict dietary adjustment, the symptoms caused by food intolerance will gradually ease until it disappears.
Step 3: For foods that have been fasted, try to gradually introduce them into the normal diet after the symptoms have disappeared or improved. This step is generally performed after 6 months of fasting.