Vitamin B2
An essential nutrient found in meat, dairy foods, plant foods and grain products. The body requires vitamin B2 to break down food components, maintain tissue, and absorb other nutrients. Like other vitamins, vitamin B2 is an organic compound. An organic compound is a substance that (1) occurs in living things, or organisms (hence, the word "organic") and (2) contains the elements carbon and oxygen (hence, the word "compound," meaning combination of elements). An alternate name for vitamin B2 is riboflavin. Vitamin B2 is a water-soluble vitamin, one that cannot be stored by the body except in insignificant amounts. It must be replenished daily. Purposes and Benefits of Vitamin B2 Vitamin B2 helps break down carbohydrates, fats and protein for use by the body. Its role in maintaining an energy supply for the body is crucial, for it helps convert carbohydrates into adenosine triphosphate (ATP), a compound needed to store energy in muscles. Vitamin B2 also promotes the following: 1. Skin, muscle, nerve, heart and eye health, including inhibiting the development of cataracts. 2. Production of red blood cells and antibodies. 2. Absorption or activation of iron, folic acid and Vitamins B1, B3 and B6. 3. Conversion of tryptophan, an amino acid, into niacin. 4. Production of hormones by the adrenal glands. 5. Maintenance of the mucous membranes in the digestive system with the help of vitamin A. 6. Healthy development of the fetus. (Vitamin B2 may or may not be essential for normal fetal development but it is clearly the better part of wisdom to supply it via the mother's diet.) Food Sources of Vitamin B2 Vitamin B2 is found mainly in meat, fish, eggs, vegetables, dairy foods and grain products. Types of food containing vitamin B2 include the following: 1. Liver, beef kidneys, chicken, turkey, fish. 2. Eggs, cheese, milk, yogurt. 3. Leafy green vegetables, asparagus, artichokes, avocados, broccoli, Brussels sprouts, dandelion greens, watercress, currants, spinach, kelp, peas, navy beans, lima beans, pumpkins, sweet potatoes, cayenne, parsley, sage, rose hips. 4.Whole-grain breads, enriched breads, fortified cereals. 5. Mushrooms, nuts, molasses. Deficiency of Vitamin B2 Vitamin B2 deficiency is quite uncommon. Those most vulnerable to deficiency of vitamin B2 include alcoholics, elderly persons with a poor diet, persons who suffer adverse reactions to dairy products (lactose intolerance) and women who use oral contraceptives. The signs and symptoms of vitamin B2 deficiency include visual problems, such as cataracts and excessive sensitivity of the eyes to light (photosensitivity). There may also include reddening of the lips with cracking at the corners (cheilosis), tongue inflammation (glossitis), skin inflammation (dermatitis), swelling (edema), dizziness, hair loss, insomnia, trembling and delayed mental response.

* * *

vitamin B2 -'bē-'tü n RIBOFLAVIN

* * *

a vitamin of the B complex that is a constituent of the coenzymes FAD (flavine adenine dinucleotide) and FMN (flavine mononucleotide). Riboflavin is therefore important in tissue respiration. A deficiency of riboflavin causes a condition known as ariboflavinosis, which is not usually serious. Good sources of riboflavin are liver, milk, and eggs. The recommended daily intake for an adult is 1.7 mg.

* * *

riboflavin.

Medical dictionary. 2011.

Look at other dictionaries:

  • Vitamin K — has also been used as a slang term for ketamine, an unrelated anaesthetic. Vitamin K1 (phylloquinone). Both forms of the vitamin contain a functional naphthoquinone ring and an aliphatic side chain. Phylloquinone has a phytyl side chain …   Wikipedia

  • Vitamin D — is a group of fat soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol).cite web|url=http://dietary supplements.info.nih.gov/factsheets/vitamind.asp|title=Dietary Supplement Fact… …   Wikipedia

  • Vitamin A — Systematic (IUPAC) name (2E,4E,6E,8E) 3,7 Dimethyl …   Wikipedia

  • Vitamin B6 — is a water soluble vitamin. Pyridoxal phosphate (PLP) is the active form and is a cofactor in many reactions of amino acid metabolism, including transamination, deamination, and decarboxylation. PLP also is necessary for the enzymatic reaction… …   Wikipedia

  • Vitamin-B — ist eine Vitamin Gruppe, in der acht wasserlösliche Vitamine zusammengefasst sind, die alle als Vorstufen für Koenzyme dienen. Die Nummerierung ist nicht durchgehend, weil sich bei vielen Substanzen, die ursprünglich als Vitamine galten, der… …   Deutsch Wikipedia

  • Vitamin B — ist eine Vitamin Gruppe, in der acht Vitamine zusammengefasst sind, die alle als Vorstufen für Koenzyme dienen. Die Nummerierung ist nicht durchgehend, weil sich bei vielen Substanzen, die ursprünglich als Vitamine galten, der Vitamin Charakter… …   Deutsch Wikipedia

  • vitamin K — n. a fat soluble vitamin, synthesized constantly by intestinal bacteria in mammals and occurring in certain green vegetables, fish meal, etc., that promotes blood clotting and is required for the synthesis of prothrombin by the liver: the two… …   Universalium

  • Vitamin A — is retinol. Carotene compounds (found, for example, in egg yolk, butter and cream) are gradually converted by the body to vitamin A (retinol). A form of vitamin A called retinal is responsible for transmitting light sensation in the retina of the …   Medical dictionary

  • Vitamin B1 — is thiamine. Vitamin B1 acts as a coenzyme in the metabolism of the body. Deficiency of thiamine leads to beriberi, a disease of the heart and nervous system. The word vitamin was coined in 1911 by the Warsaw born biochemist Casimir Funk (1884… …   Medical dictionary

  • Vitamin de — Beschreibung Deutschlernerzeitschrift Verlag NP PRESS.DE Erstausgabe 2002 Erscheinungsweise …   Deutsch Wikipedia

  • vitamin de — Beschreibung Zeitschrift für junge Deutschlerner Verlag Verein vitamin de , NP PRESS.DE Erstausgabe 2002 …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”