الفيتامين ب 12 أهميته للجسم وكيفيه الاستفاده منه Vitamin B12 جزء 1

الفيتامين ب 12 أهميته للجسم وكيفيه الاستفاده منه Vitamin B12
مع الدكتور رالف عيراني RALPH IRANIVitamin B-12 is one of eight B vitamins which is important for the normal functioning of the brain and nervous system, and for the formation of blood. It is normally involved in the metabolism of every cell of the body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production.

Vitamin B-12 is the name for a class of chemically-related compounds, all of which have vitamin activity. It is structurally the most complicated vitamin. Biosynthesis of the basic structure of the vitamin can only be accomplished by bacteria, but conversion between different forms of the vitamin can be accomplished in the human body. A common synthetic form of the vitamin, cyanocobalamin, does not occur in nature, but is used in many pharmaceuticals, supplements and as food additive, due to its stability and lower cost. In the body it is converted to the physiological forms, methylcobalamin and adenosylcobalamin, leaving behind the cyanide, albeit in

Category:

Science & Technology

Tags:

• دكتور
• رالف
• عيراني
• فيتامين
• 12
• مجلس
• الامه
• الكويت
• Vitamin
• B12

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