Vitamin B2, also known as riboflavin, is a water-soluble vitamin in the form of an orange and yellow crystalline powder that occurs naturally in celery, yeast, dairy, animal liver and meat. Vitamin B2 is a cofactor of dehydrogenase in human body, which can play the role of oxygen delivery in the process of biological oxidation, thus participating in the body's metabolism of fat, protein and sugar. Lack of vitamin B2 will cause metabolic disorders in the body, and produce inflammatory damages to the skin and mucous membranes, mainly manifested as stomatitis, conjunctivitis, keratitis, and scrotal inflammation.

Specifically, the role of vitamin B2 is mainly the following five aspects: ① can prevent and treat the body stomatitis, labial inflammation, lingual inflammation, scrotal inflammation, seborrheic dermatitis and other inflammatory reactions of the cavity mucous membranes and the surface of the skin; ② can promote the regeneration of cells and the body's development; ③ can promote the body's skin, hair and nails, such as the normal growth of the body; ④ can protect the eyesight, to ease the fatigue of the eyes; ⑤ can be a certain degree to promote the body's absorption of iron, the body of the body's iron absorption, and so on. It can protect eyesight and relieve eye fatigue; ⑤ It can promote the absorption of iron to a certain extent. In recent years, with the deepening of the research on vitamin B2, it is found that vitamin B2 has a new role in improving blood supply to the myocardium, diuretic swelling prevention and treatment of tumors.

The body's daily demand for vitamin B2 is not large, reasonable diet, generally will not lack, but when the diet is not balanced, intake of vitamin B2 insufficient will lead to vitamin B2 deficiency symptoms, in addition to taking some drugs, can also trigger vitamin B2 deficiency, such as taking antipsychotic promethazine, anti-malarial drug adiponectin, anticancer drug adriamycin, etc., these drugs will inhibit vitamin B2 oxygen transfer function Therefore, attention should be paid to consult the physician or pharmacist in time for the necessary vitamin B2 drug supplementation. Vitamin B2 should be taken after meals, during the period of taking, should avoid eating high-fat food and high-fiber food; taking vitamin B2 may appear after the phenomenon of yellow urine, is a normal phenomenon, no need to be overly nervous; in addition, vitamin B2 should be stored away from light.

Primary reference:

[1] Author Zhang Shige. Mechanism of action of vitamin B2[N]. Pharmaceutical Economic News,2003/01/15(A05)

[2]]Du Fanrong. New clinical uses of vitamin B2[J]. Journal of Clinical Rational Drug Use,2012,5(26):12

[3] Instructions for riboflavin sodium and vitamin B2 tablets for injection

The authoritative interpretation of Pharmaceutical Affairs, unauthorized reproduction, plagiarism will be punished.

Vitamin B is a large family, thiamin (B1), riboflavin (B2), niacin, folic acid, pantothenic acid, pyridoxine (B6), cyanocobalamin (B12), biotin, etc., which are independent individuals, and each other and each other dependent on each other, in the body to play a role in the coenzymes, like a "helper," to help the sugar, protein, lipid metabolism. Metabolism. Vitamin B is a water-soluble vitamin, generally does not accumulate in the body, and the metabolites can be excreted in the urine.

Vitamin B2, also known as riboflavin, is heat-resistant, but not alkali-resistant, and can be lost with prolonged exposure to light. We all know that if there is a rotten mouth, it is a lack of vitamin B2, in fact, this is only one of the manifestations of VB2 deficiency, we will learn from its physiological function and lack of symptoms of VB2 in the end what is the use of VB2?

(i) Physiological functions

(1) Involved in biological oxidation and energy metabolism. We all know that the human body is composed of cells, normal cell oxidation and reduction need the participation of VB2, fat, sugar, protein metabolism are also related to it, so although VB2 itself does not produce energy, but it can help the body to better utilize the three major energy-saving nutrients.

(2) Affects growth and development. Vitamin B2 can maintain the integrity of the skin mucosa, can affect the visual sensitivity, the production of adrenocorticotropic hormone, the formation of red blood cells in bone marrow hematopoiesis as well as the absorption of iron, to prevent iron-deficiency anemia have an important role.

(3) Antioxidant activity. Vitamin B2 maintains the concentration of reduced glutathione in the body and has a supporting role in preventing lipid oxidation and free radical damage.

(ii) Lack of disease.

(1) Oral Genital System Syndrome: Vitamin B2 deficiency caused by dietary imbalance or improper cooking and processing methods can not only cause oral symptoms, inducing keratitis (erosion of the corners of the mouth, redness, swelling, fissures, wet white spots), labyrinthitis (redness, swelling, chapping, and ulceration of the oral mucous membrane inside the lips), with purplish-red or digit-like changes at the tip of the tongue; it can also cause scrotal symptoms, which are initially itchy at night, and then later on, skin lesions (erythematous, papular, and eczematous). Skin lesions (erythematous, papular, eczematous), erythematous is symmetrically distributed, papular is asymmetrically distributed, eczematous symptoms are no different from ordinary eczema, there are changes such as desquamation, crusting infiltration, thickening.

(2) Eye symptoms. Vitamin B2 deficiency can also cause photophobia, tearing, a burning sensation in the eyes, blurred vision, and a tendency to eye strain.

In addition, vitamin B2 deficiency can also cause seborrheic dermatitis, neurological symptoms such as insensitivity to temperature, touch or sensory hypersensitivity of the extremities.

(c) Food Sources:Almost all plants and animals contain vitamin B2, which is more stable in fermented foods and animal foods. Yeast, milk, whole eggs, fish eggs, animal livers, hearts, kidneys, and broad-leaved green vegetables are all good sources of VB2. However, care should be taken to avoid boiling with alkali, high pressure and exposure to light, especially when milk is heated or placed in clear, uncovered glasses where VB2 can be severely lost.

(Wang Fang, Nurse-in-Charge, National Public Nutritionist, National Health Manager, Founder of Good Food Nutrition Workshop, Participant of Wang Xingguo Nutrition Special Training Course 5)

Vitamin B2, which appears as orange crystals and is also called riboflavin, serves as a coenzyme for various flavoprotein enzymes in the body, and plays an extensive role in the biological oxidation process of hydrogen delivery. It is soluble in water, but has a low solubility and is easily dissolved in alkaline solutions.

Role of Vitamin B2

Vitamin B2 has an important role in the maintenance of the skin, is to maintain the health of the skin indispensable elements, can be called "skin vitamins". It not only promotes the development of the body and cell regeneration, but also promotes the healthy growth of skin, nails and hair.

Vitamin B2 plays an even more significant role for people who are trying to lose weight. It converts proteins, sugars and fats in the body into expendable energy during metabolism. In addition to this, it strengthens fat metabolism and reduces the accumulation of fat in the blood and liver, which helps obese people to lose unwanted pounds.

Vitamin B2 is also extremely helpful for the health of the body's organs, as it can get rid of inflammation of the mouth, lips and tongue. It can also reduce eye fatigue, relieve myopia and improve vision.

At present, the incidence of cardiovascular and cerebrovascular diseases is increasing, in order to prevent this disease, you can consume a moderate amount of vitamin B2, because it can promote the role of redox in the body's cells, to prevent the generation and accumulation of peroxides, and thus prevent atherosclerosis and the occurrence of heart disease.

Who should take vitamins

Elderly: cardiovascular disease is a high incidence of the elderly, if the daily intake of 20 to 30 mg of vitamin B2, can effectively prevent such diseases.

Pregnant women: Women who consume 10 milligrams of vitamin B2 per day during pregnancy can slow down the symptoms of cramps.

Women taking birth control pills: Women taking oral contraceptives for a long period of time are prone to vitamin B2 deficiency, which will increase the body's need for vitamin B2, so it is important to supplement in moderation.

Patients with atherosclerosis: Vitamin B2 can effectively improve myocardial ischemia, inhibit platelet aggregation, and reduce the scope of myocardial infarction for atherosclerosis, coronary heart disease, etc. have a certain effect.

Vegetarians: Since foods rich in vitamin B2 are mostly animal foods and less in vegetarian diets, they can easily lead to vitamin B2 deficiency, so special attention should be paid to their intake.

People who want to lose weight: As vitamin B2 has the effect of burning and accelerating fat metabolism, more intake can make people who want to lose weight with half the effort!

People who are prone to allergies or have dermatitis: Vitamin B2 prevents conditions such as dermatitis and skin allergies, helps the skin resist sun damage and promotes skin health.

Proper Vitamin Supplementation

The lack of vitamin B2 in the human body will lead to photophobia, foreign body sensation, congestion around the cornea, the corners of the mouth are prone to inflammation, small blisters, ulcers, skin allergies, inflammation, roughness, dry and cracked lips or inflammation of the mucous membranes in the oral cavity and other symptoms of lesions. Sometimes, it also causes redness, swelling and pain at the edge of the tongue, etc. Constant oozing of oil from the flanks of the nose leads to itchy nose (seborrheic dermatitis), and, in addition, causes itchy ulcers in the pubic area and near the anus. In contrast, an overdose of vitamin B2 can cause itching, numbness, tingling, burning, and yellowish colored urine. But even if you consume too much vitamin B2 it is not toxic, it is excreted in the urine.

Different groups of people need different amounts of vitamin B2 supplementation. In general, adults are recommended to consume 1.2 to 1.7 milligrams per day; women during pregnancy need 1.6 milligrams; women who are breastfeeding need 1.8 milligrams in the first six months, and 1.7 milligrams in the six months after that; infants are recommended to take 0.3 to 0.4 milligrams per day; and toddlers are recommended to take 0.6 to 0.9 milligrams per day; Adolescents 0.9 to 1.7 milligrams; people who are constantly under stress should increase their intake.

Food contains a lot of vitamin B2, for example, dry peas, dark green vegetables, mushrooms, pods and other vegetables; almonds, black beans, red beans, mung beans, sesame and other grains and cereals; fish, seaweed, wakame and other seafood; animal livers, eggs, milk and dairy products are rich in vitamin B2. Since vitamin B2 is resistant to heat, acid and oxidation, it is usually not destroyed during cooking, and it is easily digested and absorbed, and does not accumulate in the body, therefore, the vitamin B2 that the human body needs every day can be obtained from food or nutrients in a timely manner. However, it should be noted that vitamin B2 is afraid of light, especially ultraviolet light.

Vitamin B2 is a yellow-green substance that can be dissolved in water, because of the yellow color, containing ribose, so the name riboflavin, pure riboflavin is yellow-orange crystals, insoluble in fat can be dissolved in water, so it belongs to the water-soluble vitamins. Vitamin B2 is widely distributed in nature, but the content is not high.

Vitamin B2 is heat-stable and can be preserved in acidic solutions heated to 100 degrees Celsius, but is quickly destroyed in alkaline solutions. Bound riboflavin in food is light-stable, while the free form is unstable to light.

What are the physiologic functions of vitamin B2?

1. Constitutes flavoprotein coenzymes that participate in the metabolism of amino acids, fatty acids and carbohydrates.

2. Involved in the normal growth of cells, in the skin and mucous membranes, especially in the curved part that is often in activity, small injuries are not easy to heal, can be regarded as a manifestation of riboflavin deficiency.

3. Related to the production of adrenocorticotropic hormone, erythropoiesis in bone marrow, and iron absorption storage and mobilization. Riboflavin supplementation plays an important role in the prevention of iron deficiency anemia.

4. In recent years, it has been suggested that riboflavin is also associated with retinal sensing of light.

5. It activates vitamin B6, which is involved in the formation of niacin from tryptophan.

What are the dangers of vitamin B2 if you are deficient in it on a daily basis?

The main manifestations are: metabolic disorders, prone to keratitis, labyrinthitis, lingual inflammation, facial dermatosis, seborrheic dermatitis, mild diffuse epithelial keratosis, with seborrheic alopecia and neurological disorders, and at the same time, some of the flavin enzymes in the body of the abnormally lowered activity, the most obvious is the erythrocyte glutathione reductase, the enzyme for the body's nutritional status of the riboflavin standard.

What foods in your daily diet are rich in vitamin B2?

Vitamin B2 is widely found in natural foods. Animal foods, especially animal offal, such as liver, kidney and heart muscle, have the highest content, followed by eggs, dairy, soybeans and a variety of green leafy vegetables also contain a certain amount. Other plant foods contain lower levels.

General human recommended intake of vitamin B2:

0.5-1.5mg per day for children and adolescents, 1.0-2.0mg per day for adults, 0.2mg per day for pregnant women, and 0.3mg per day for breastfeeding patients.Inflammatory and surgical procedures, hyperthyroidism, and nutritional deficiencies necessitate an increase in the intake of vitamin B2.

Vitamin B2 is a coenzyme, which is also called riboflavin, and plays an important role in the metabolism of sugar, fat, protein and other substances in our body, so the body can not do without this substance.

What are the symptoms that can occur if there is a vitamin B deficiency? In general, vitamin B deficiency may lead to various mucosal inflammations, such as inflammation of the lips and corns, inflammation of the mucous membranes of the vagina, etc. It is also prone to mouth ulcers and keratitis.

People who are nutritionally healthy are generally not deficient in vitamin B2 because it is found in a wide variety of common foods, such as meat, eggs, dairy products, and fruits and vegetables such as carrots, eggplant, citrus, and oranges, etc. People who have a mono-diet or who have gastrointestinal disorders or absorption dysfunctions may become deficient. chronic diseases such as diabetes, may be limited by their diet and may be deficient in vitamin B2.

For these people, vitamin B2 can be supplemented by taking vitamin B2 medication. Vitamin B2 is water-soluble, take a normal dose, will not accumulate in the body, if more than the upper limit of the body's normal needs, usually with the urine discharge, so there will not be any side effects. If there is no physical disease, a balanced diet, then there is no need to supplement vitamin B2.

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What are the benefits and effects of vitamin B2?

Vitamin B₂, also known as riboflavin, has the effect of preventing and treating vitamin B₂ deficiencies, such as xerostomia, dry and cracked lips, laryngitis, scrotal inflammation, angular vascularization of the cornea, conjunctivitis, seborrheic dermatitis, etc. It acts to promote development and regeneration of cells, reduces eye fatigue, helps to prevent and eliminate the oral-genital system syndromes, and promotes normal growth of the skin, hair, and so on.

Vitamin B₂ is the body of some important oxidoreductase cofactor components, with reversible redox properties, its participation in the body's biological oxidation and energy metabolism, with carbohydrates, proteins, nucleic acids and fat metabolism is related to improve the body's utilization of proteins, to promote growth and development, to maintain the integrity of the skin and cell membranes, and with the protection of the skin follicle mucous membranes and the sebaceous glands of the function. Vitamin B₂ deficiency will affect the body's biological oxidation, so that the metabolism is impaired. Vitamin B₂ is an essential nutrient factor for human development, but the body has limited storage and must be provided daily by the diet.

Reviewed by Shi Chengyao, Deputy Chief Pharmacist, Department of Pharmacy, Qilu Hospital, Shandong University, China.

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Vitamin B2 is also known as riboflavin (iboflavi). Riboflavin exists in the form of free riboflavin and binding riboflavin. The former is sensitive to ultraviolet light, photolysis and loss of biological activity under alkaline conditions; binding type riboflavin is more stable to light, food riboflavin to binding type is dominated by more stable to light.

physiological function

1. As an important coenzyme of many enzyme systems, it participates in biological oxidation and material metabolism in the body.

2. Involved in the normal growth of cells In the skin mucosa, especially in the curved part of the often active, the regeneration of cells after injury requires riboflavin.

3. Others have the role of activating pyridoxine, involved in the process of tryptophan formation of niacin; and iron absorption, storage and mobilization, in the prevention and treatment of iron deficiency anemia plays an important role; riboflavin has antioxidant activity, may be related to the activity of the enzyme glutathione reductase flavin.

clinical deficiency

Riboflavin deficiency is relatively common in our population.

1. Causes

Inadequate dietary intake; alcoholics are prone to deficiencies.

2. Performance

Disorders of substance and energy metabolism, appearing a variety of clinical symptoms. ① eye symptoms: initial shyness, tearing and blurred vision, severe peripheral corneal vascular hyperplasia, blepharitis; ② oral symptoms: angular stomatitis, labyrinthitis, lingual inflammation, tongue, maple tongue and oral mucosal ulcers; ③ skin symptoms: seborrheic dermatitis and scrotal dermatitis (labiitis); ④ other: long-term lack of can lead to growth retardation in children, mild to moderate iron-deficiency anemia, immunity to decline in the function of the pregnancy lack of can occur Fetal malformations can occur during pregnancy. Riboflavin severe deficiency is often accompanied by other B vitamins deficiency, such as affecting the metabolism of vitamin B and niacin.

Recommended Intake and Food Sources

1. Recommended intake

Riboflavin requirements are also closely related to protein and energy intake, and the Chinese Society of Nutrition suggests that the recommended dietary intake (RNI) of vitamin B2 should be 1.5mg/d for adult men and 1.2mg/d for adult women.

2. Food sources

Good food sources of riboflavin are animal foods, such as animal offal (heart, kidney, liver), dairy, egg yolk; plant foods cereals, roots and tubers and vegetables and fruits also have a certain amount of content, which to green leafy vegetables such as spinach, leeks, greens and legumes more content. In addition, harvesting, processing and storage methods are different, will also affect the content of riboflavin in food.

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Vitamin B2, also known as riboflavin, belongs to the B group of water-soluble vitamins, which is a vitamin necessary for maintaining human metabolism. The human body can not synthesize vitamin B2, and the body's vitamin B2 storage is limited, so the daily diet to supplement, vitamin B2 is mainly found in yeast, animal offal, eggs, milk, soybeans, leafy green vegetables and other foods, our body's demand for its very little, adults need only 1mg-1.2mg per day, folded into the diet of about one or two livers, two or two soybeans, or three lettuce, so dietary Balanced people do not need additional supplementation. It should be noted that frying, stir-frying, cooking, deep-frying and other inappropriate cooking methods can lead to irreversible decomposition of vitamin B2 in food, often eat refined rice and white flour, the lack of coarse grains and cereals can lead to insufficient intake of vitamin B2, smoking, alcoholism, coffee, high sugar, high-fat diets and other bad habits can lead to vitamin B2 overconsumption, which is caused by vitamin B2 deficiency of the common causes.

Vitamin B2 has a wide range of physiological effects, it is an important component of coenzymes, involved in the metabolism of carbohydrates, proteins, nucleic acids, fats, to improve the body's utilization of protein, promote growth and development, strong nails and hair, maintain the integrity of the skin, to maintain the normal visual function, affecting the absorption of iron and transport, maintain the structure and function of the intestinal mucosa, involved in the metabolism of niacin and vitamin B6 , maintains the level of reduced glutathione in the body, strengthens the function of the liver, and is clinically applicable to

1. Vitamin B2 deficiency: mild vitamin B2 deficiency has no obvious symptoms, severe vitamin B2 deficiency can cause oral-genital syndrome, manifested as orofacial inflammation, lingual inflammation, corneal inflammation, blepharitis, conjunctivitis, seborrheic dermatitis, scrotal inflammation, etc., accompanied by fatigue and weakness, which need to be supplemented with vitamin B2.
2. Eye Disease: Vitamin B2 can enhance vision and reduce eyestrain, and is indicated for eye diseases such as progressive conical cornea and post refractive surgery corneal bulging.
3. Migraine: Vitamin B2 can increase the potential of mitochondria in brain cells, which helps to reduce the frequency of migraine and shorten the duration of attacks, and is suitable for the adjunctive treatment of migraine.
4. Improve the quality of sexual life: vitamin B2 can maintain the structure and function of the mucous membrane in the cavity of the human organ, when the body lacks vitamin B2, the mucous membrane layer in the cavity of the human organ will be thin, damaged and microvascular rupture. For women, the lack of vitamin B2 can lead to vaginal dryness, vaginal mucosa congestion, rupture, resulting in decreased libido, sexual intercourse discomfort, or even frigidity, you can take vitamin B2 orally.

In conclusion, vitamin B2 is an essential water-soluble vitamin, widely found in animal offal, meat, eggs, milk and other foods, the human body's demand for it is very small, to maintain a balanced diet, the general will not be deficient, too little intake, alcoholism and other bad habits, overcooking is the main reason for the lack of vitamin B2, vitamin B2 has a wide range of physiological roles, such as the regulation of metabolism, to promote the growth of the development of normal visual function, etc., vitamin B2 deficiency can lead to oral-genital syndrome, in addition to supplementation. Vitamin B2 has a wide range of physiological functions, such as regulating metabolism, promoting growth and development, maintaining normal visual function, etc. Vitamin B2 deficiency can lead to oral-reproductive syndrome, the need for vitamin B2 supplementation, in addition, vitamin B2 can also be used for migraines, some ophthalmologic diseases adjuvant therapy, and help to improve the quality of female sexual life.

This is a very good question! Vitamin B2, there is called riboflavin, which was first discovered in 1879 by a British chemist at the time who found a layer of yellowish-green fluorescent pigment floating on the surface of milk, but it could not be extracted at the time.

By 1933, from more than 1,000 kilograms of milk by U.S. scientists, finally purified to 18 milligrams of this yellow-green fluorescent pigment, and later found that its molecular formula has a ribitol, named riboflavin.

In fact, vitamin B2 is in our body as a component of flavoenzymes cofactors, as riboflavin binds to phosphoric acid and a molecule of protein to become flavoenzymes.

And the enzyme flavinase, also called dehydrogenase, plays a role in the biological oxidation of our body by transferring hydrogen ions, is important for the metabolism of all 3 major nutrients, fat, protein and sugar, and is an essential vitamin for the growth of our body.

So where does vitamin B2 come from in our bodies? What happens when your body is deficient in vitamin B2? Who is most at risk of vitamin B2 deficiency and what foods are rich in vitamin B2?

I'm going to join you guys and gals and talk about this, just FYI.

Where does vitamin B2 come from in our bodies?

Our bodies cannot synthesize vitamin B2 on their own or very little, and vitamin B2 cannot be stored in our bodies.

In this way, the only way to get vitamin B2 is to rely on the fact that we get the body's necessary vitamin B2 from our meals.

Since most of the vitamin B2 in food, exists in combination with proteins, foods rich in animal and plant proteins are generally rich in vitamin B2, such as liver, kidney, eggs, milk, soybeans, green leafy vegetables, rich in vitamin B2.

When the food rich in vitamin B2, into our stomach, under the action of gastric acid, the first vitamin B2 and protein to be separated into free vitamin B2, and then absorbed in the upper part of the small intestine.

If vitamin B2 intake is high, because our body cannot accumulate it, it passes through the kidneys and is excreted in the urine as free vitamin B2.

This means that we need a dietary supply of vitamin B2 for our daily body needs, and once we are deficient in the essential vitamin B2, our body will experience the following symptoms.

What happens when your body is deficient in vitamin B2?

Once our body lacks vitamin B2, the mucosal layer in the lumen of our body, there will be a series of problems, causing mucosal lesions, resulting in the metabolic disorders of the mucosal cells, mainly manifested as thinning of the mucosa, damage to the mucosal layer, microvascular rupture, the specific clinical symptoms are as follows.

1. Mouth symptoms.lipRedness, erosion of the corners of the mouth, stomatitis, stomatitis, xerostomia, mouth ulcers, etc;

2. Ocular manifestations.E.g. blepharitis (inflammation of the eyelids), photophobia, easy tearing, blurred vision, conjunctival congestion, and conjunctivitis;

3. Skin manifestations.Examples include papular or eczematous scrotal inflammation, seborrheic dermatitis of the nasolabial folds, between the eyebrows, on the eyelids and behind the ears.

Who is susceptible to vitamin B2 deficiency?

1. Pediatrics are susceptible to deficiencies.Due to the rapid growth and development of children, metabolism is vigorous, more likely to be deficient in vitamin B2.

2. Contraception/pregnant/lactating women.Women taking birth control pills, pregnant women, and breastfeeding women are more likely to be deficient in vitamin B2 due to the effects of the drug and increased physiological metabolism.

3. Long-term vegetarians.Deficiencies are more likely to occur due to the lack of animal proteins rich in vitamin B2 supplements from a long term vegetarian diet.

4. People under stress.Because people are under long-term high pressure, high mental tension, the body of vitamin B2 metabolism accelerated, more likely to lack.

5. People on long-term controlled diets.People who have been dieting for a long period of time, such as for weight loss and slimming; and people who have been on a long-term diet due to ulcers or diabetes are more likely to be deficient in vitamin B2.

6. Chronic alcoholics.Since the breakdown of alcohol requires a large amount of dehydrogenase, this can lead to vitamin B2 deficiency due to rapid depletion.

7. People on long-term medication.For example, psychiatric patients, need to take long-term drugs such as promethazine, promethazine; cancer patients need to take long-term anti-cancer drugs such as adriamycin, inhibit the activity of vitamin B2, and lead to vitamin B2 deficiency.

What foods are rich in vitamin B2?

Although vitamin B2, is widely available in all types of foods, since most of the vitamin B2 in food, exists in combination with proteins, foods rich in animal and vegetable proteins are generally rich in vitamin B2.

1. Animal foods rich in vitamin B2.Such as liver, kidneys, heart, egg yolks, eel, and milk from various animals.

2. Plant foods rich in vitamin B2.For example, fresh green leafy vegetables, various kinds of beans and coarse rice and noodles are more abundant; while refined rice and noodles and non-green leafy vegetables are less abundant.

Therefore, to supplement the body's vitamin B2 needs from daily meals, it is recommended that you can consume animal foods such as animal liver, eggs and milk, as well as plant foods such as fresh green leafy vegetables, various kinds of beans and coarse rice and noodles.

Also, when processing and cooking foods, be aware that vitamin B2 has 2 fears.One is afraid of light, especially ultraviolet light, and the other is afraid of alkalis, i.e. alkaline substances.

To summarize:Vitamin B2 is an important substance in our body that participates in biological oxidation, and since the body cannot synthesize it on its own, it can only be obtained from food.

Therefore, once the body lacks vitamin B2, it will make the mouth, eyes, skin, etc., mucous membrane thinning, mucous membrane layer damage, microvascular rupture, a series of disease symptoms.

It is recommended to consume animal foods rich in vitamin B2 and plant foods such as fresh green leafy vegetables, various kinds of legumes and coarse rice and noodles to meet the body's needs.

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Vitamin B2, also known as riboflavin, is a rich source of vitamin B2 in milk and milk products, liver, eggs and meat. Riboflavin is actively absorbed mainly in the upper part of the small intestine through transporter proteins.Absorbed riboflavin is converted to flavin mononucleotide (FMN) catalyzed by small intestinal mucosal flavin kinase, which is further catalyzed by pyrophosphorylase to produce flavin adenine dinucleotide (FAD), FMN and FAD are the active forms of vitamin B2.

FMN and FAD are oxidoreductases in vivo (e.g., lipoyl CoA dehydrogenase, succinate dehydrogenase, xanthine oxidase, etc.)subsidiary base, mainly act as hydrogen transporters. They are involved in the respiratory chain, oxidation of fatty acids and amino acids, and the citric acid cycle.

Vitamin B2 deficiency disease is a common nutritional deficiency disease, and the daily requirement of vitamin B2 for adults is 1.2 to 1.5 mg.

The main cause of deficiency is inadequate dietary supply, such as improper food preparation (over-polishing of rice, chopping and soaking of vegetables, etc.), consumption of dehydrated vegetables or multiple boiling of milk for infants can lead to vitamin B2 deficiency.

Vitamin B deficiency can cause xerostomia, xerostomia, xerostomia, blepharitis, and photophobia.When treating neonatal jaundice with phototherapy, riboflavin can be broken at the same time as skin bilirubin, causing vitamin B2 deficiency in neonates.