Vitamin B2 (Riboflavin)
Also called vitamin G. Yellow in colour.
Heat stable and light sensitivie
Important for cellular respiration.
Helps breakdown of CHO, proteins, and fats to produce energy.
Absorption
Absorbed in small intestine in form of;
FMN (Flavin mononucleotide)
FAD (Flavin adenine dinucleotide)
Excess flavin excreted in urine.
Daily requirement
Children; 0.4-1.4mg/day
Adult male; 1.5mg/day
Adult female; 1.2mg/day
Function
1. Present in retina; light adaption
2. FMN, FAD act as coenzyme
3. Aids in cellular respiration
4. Involve in oxidation - reduction
Clinical Manifestations of Deficiency
1. Oral and facial lesions; angular stomatitis, glossitis, nasolabial sebarrhoea
2. Scrotal lesions; scrotal dermatitis
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