A vitamin is necessary for the body to function normally. It is very important that a person does not have retinol deficiency, otherwise it can disrupt the functioning of the body systems and lead to serious consequences. At the same time, an excess is harmful, so it is necessary to actively replenish the retinol content only after consulting a doctor and after his prescription.
- Healthy appearance thanks to vitamin A.
- The need for retinol
- What is retinol for?
- Retinol has a wide spectrum of effects on the body.
- Causes of Hypovitaminosis A
- Reception of pharmacy vitamin complexes
- Side effects of taking medication
- Diet for hypovitaminosis A
Healthy appearance thanks to vitamin A.
Functions of the vitamin and its role in the body
And vitamin fulfills many functions in the human body. So, doctors point out the following functions of vitamin A:
Useful properties and functions of vitamin A.
Antioxidant and antihypoxane. This implies that retinol has a protective function of the body and protects it from negative influences both from the outside and from the inside.
Normalization of exchange processes. In the event of violations, retinol will help eliminate them.
Increasing immunity. Retinol strengthens the body and makes it less susceptible to viruses and bacteria.
Formation of the bone system. Strong bones and healthy teeth are due not only to calcium but also to retinol.
The improvement of eyesight. Retinol is often referred to as a vitamin for the eyes because it increases visual acuity and prevents the development of “chicken blindness”. It moisturizes the eyes, protects the cornea from drying out and injuries.
Dermatoprotectornoe action. Retinol changes the structure and texture of hair, promotes its growth and shine, strengthens the nails, solves many dermatological problems such as acne, comedones, pimples, as well as wrinkles, sagging skin, poor turgor.
The adaptive trophic effects. Retinol strengthens the nervous system, improves sleep, makes a person more resistant to stress, and nourishes tissues.
Restorative effect. Retinol improves tissue regeneration, so it is actively used in the treatment of burns.
Rejuvenating effect. Retinol helps to rejuvenate the body, prevents premature aging of the skin.
Vitamins a have a positive effect on all body systems. It is difficult to overestimate their useful properties.
The need for retinol
Contribution of Vitamin A to the Antioxidant Protection of the Body The average adult body needs about 3,300 IU of vitamin A. In some cases the body’s need increases, up to 10,000 IU per day. This is particularly necessary in the following cases:
- Hypo- or avitaminosis, ie retinol deficiency;
- hot climate;
- stay active in the sun;
In such cases, it is necessary to increase the dosage of retinol by correcting the diet and taking pharmacies. However, you should only start vitamin therapy on the recommendation of a doctor.
What is retinol for?
In addition to its main functions, this substance also affects the condition of vital organs. This is vitamin A:
Application and use of retinol in cosmetics
Improve the functioning of the lungs and gastrointestinal tract. This is due to the effect of retinol on the mucous membranes and epithelial cells. It improves lung function, promotes ulcer healing, and cures colitis.
Influence on intrauterine development. Therefore, it is necessary to use vitamin A, it ensures the normal development of the embryo, its nutrition and prevents pregnancy pathologies.
Influence on the work of the thyroid and sex glands. We are talking about the fact that vitamin A is responsible for the synthesis of progesterone and other steroid hormones, improves the process of spermatogenesis and the function of the thyroid gland.
Prevention of cancer. Thanks to its antioxidant effect, the substance prevents the formation of tumors and their relapse. Vitamin A is necessary: its benefits have been proven in the treatment of cancer patients.
Protection against free radicals. Retinol protects the brain from free radical damage by neutralizing the most dangerous of them.
Strengthening the cardiovascular system. The use of vitamins is necessary to prevent the development of angina, atherosclerosis, heart attack, etc.
Retinol has a wide spectrum of effects on the body.
Signs of vitamin A deficiency
In order to accurately determine the vitamin deficiency, appropriate blood tests must be carried out. But some signs indicate a deficiency in the body:
Signs of vitamin A deficiency
On the skin side. There is premature aging and the appearance of wrinkles, reduced turgor, peeling, acne, dermatitis, seborrhea. Even skin cancer can develop.
On the hair side. Hair becomes brittle, dry, the scalp lacks moisture, dandruff and itchiness appear.
From the teeth. Tooth enamel becomes extremely sensitive.
From the side of the organs of vision. Eyes are watery, mucus or crusts form in the corners of the eyes, there are unpleasant sensations such as dryness, pain, a feeling of sand in the eyes, visual acuity decreases at dusk, the cornea becomes cloudy.
From the genitals and the genitourinary system. In men, erections worsen, ejaculation accelerates, urinary incontinence occurs, and libido decreases.
From the reproductive system. Women have cervical erosion, mastopathy, malignant breast tumors, polyps, etc.
From the gastrointestinal tract. Atrophic gastritis, colitis, diarrhea, cyst-like formations in the liver, and a malignant pancreatic tumor can develop.
From the respiratory system. Exposure to infectious and viral diseases (pneumonia, sinusitis, cold, bronchitis, respiratory diseases). Lung cancer is also possible.
From the blood side. Often hypovitaminosis is accompanied by anemia.
From the nervous system. Insomnia, nervous exhaustion.
If a child suffers from hypovitaminosis, this influences the development and growth process: Children lag behind in mental and physical development, usually smaller and lower than their healthy peers.
Causes of Hypovitaminosis A
Doctors point out the following factors that can lead to a retinol deficiency:
- poor nutrition, especially in winter and early spring;
- Lack of protein food, without which retinol absorption is reduced;
- Lack of fat, in which vitamin A is dissolved;
- chronic diseases, particularly of the gastrointestinal tract, liver, pancreas and biliary tract;
Tocopherol deficiency, which prevents the oxidation of retinol;
- rigid diet.
If tests show vitamin A deficiency, the doctor may prescribe retinol medication from the pharmacy. So, doctors indicate such diseases that are indications for the prescription of drugs:
- dermatological diseases such as seborrhea, allergic skin reactions;
- Diseases of the mucous membranes (candidiasis, conjunctivitis, keratitis);
- Injuries as a result of trauma (broken bones, wounds), burns (skin lesions);
- chronic diseases, especially pneumonia, liver and biliary tract dysfunction;
- Iron deficiency type anemia.
Prescribing the treatment yourself, determining the dosage and duration of vitamin therapy is categorically unacceptable.
The treatment regimen is prescribed only by a doctor, taking into account the age of the patient, the cause of hypovitaminosis and other factors.
Reception of pharmacy vitamin complexes
Pharmacies offer drugs in the form of capsules, tablets, ampoules with an oil solution. The most popular are the following:
Fish oil is a source of vitamin A.
Fish oil. The best known natural source of retinol. It is available in capsule form so the person does not feel uncomfortable when taking it. Contains the maximum amount of vitamin and omega-3. Indications-prevention of thrombosis, vascular arteriosclerosis, heart diseases, rehabilitation therapy after a heart attack, as additional therapy for cancer (especially breast and colon).
Retinol acetate. This is an oil solution of vitamin. It can be used internally, externally and as a skin, hair and nail care product.
Retinol palmitate. Also is the oil solution that compensates for the lack of vitamin A. Designed for ingestion.
Aevitum. This is a complex drug that contains vitamins A and E. It has an antioxidant and immune stimulating effect. It has a complex effect on the organs of vision, the reproductive system, blood circulation and other processes.
Aekol. Contains vitamins A, E, K and carotene. Indications – injuries to the liver, regenerative therapy after burns and injuries.
Three-V-Plus. The combination preparation, which contains vitamins A, E, C, is enriched with beta-carotene, zinc, copper and selenium. Indications-maintenance therapy in the elderly and after the treatment of malignant tumors (radiation and chemotherapy), prevention of stress complications, chronic fatigue, strengthening of the immune system.
How to take vitamin A is described in the instructions for each drug. Usually you need to strictly adhere to the dosage indicated in the instructions. The doctor may prescribe a dosage depending on the patient’s condition.
Side effects of taking medication
The use of medication can be accompanied by side effects. They’re pretty rare. Causes of side effects:
Headache with too much vitamin A.
Violation of the doctor’s prescription regarding the duration of treatment and dosage of the drug;
Pregnancy (some medications should not be used during this time).
The main reason is an overdose. It can either be a one-off (such as when you eat a large amount of bear or shark liver) or it can be a result of retinol build-up.
When there is an excess of vitamin A, symptoms such as:
- Intolerance to certain foods;
- Nausea, vomiting;
- painful sensations in the joints, bones and muscles.
Diet for hypovitaminosis A
Products containing vitamin A, the source of saturation of the body with retinol – this is a well-composed diet. It is necessary to include a daily diet with any vitamin A rich product. These products include:
- Vegetables. Pumpkin, carrot, bell pepper, broccoli, spring onion.
- Fruits and berries. Apricots, apples, peaches, grapes, melon, watermelon, cherries, sea buckthorn and rose hips.
- Green. Parsley, nettle, sorrel, and spinach are very useful.
- Herbs and spices. Borage, burdock, fennel, mullein, mint, lemongrass, hops can be added to salads, first and second courses of meat and vegetables. And you can make teas and infusions from sage and raspberry leaves.
- Grain. Oatmeal is especially useful.
- Legumes. Beans, chickpeas, peas, soy.
- Meat products. Beef liver is most useful.
- Dairy products. It is advisable to use homemade fresh milk, sour cream, cottage cheese. Useful cheeses of all kinds, butter, cream, egg yolks.
- Seafood. In particular, it is necessary to include in the diet of fish.
You need to remember that vitamin A is fat-soluble, that is, the diet should include a sufficient amount of vegetable and animal fats, such as vegetable oils, sour cream, cream, meat. Fresh vegetables should be consumed at the same time as fat, for example, pour sour cream on raw carrots or add a little olive, soy, hemp or other vegetable oil. This will ensure that the body fully assimilates retinol from the vegetables.