" T h e h e a l t h b e n e f i t s o f V i t a m i n B 7 o r B i o t i n i n c l u d e i m p r o v e d m e t a b o l i s m , t i s s u e m a i n t e n a n c e , h e a l t h y s k i n , w e i g h t l o s s , r e l i e f f r o m h e a r t p r o b l e m s , a l o p e c i a , P a r k i n s o n s d i s e a s e , R e t t s y n d r o m e a n d v a g i n a l c a n d i d i a s i s . I t a l s o a i d s i n t h e s y n t h e s i s o f v i t a l c o m p o n e n t s a n d h e l p s i n m a i n t a i n i n g b l o o d s u g a r l e v e l s . V i t a m i n B 7 , a l s o k n o w n a s B i o t i n , h a p p e n s t o b e a c a t a l y s t f o r v a r i o u s m e t a b o l i c r e a c t i o n s i n t h e h u m a n b o d y t o e x t r a c t e n e r g y . D u e t o i t s w a t e r s o l u b i l i t y , t h i s v i t a m i n i s r e g u l a r l y d i m i n i s h e d a n d t h e r e f o r e n e e d s r e p l e n i s h m e n t ."
"Biotin deficiency is rare because, in general, intestinal bacteria produce biotin in excess of the body's daily requirements. ... The first demonstration of biotin deficiency in animals was observed in animals fed raw egg white. Rats fed egg white protein were found to develop dermatitis, alopecia and neuromuscular dysfunction. This syndrome, called egg white injury, was discovered to be caused by a glycoprotein found in egg white, avidin. Avidin denatures upon heating (cooking). This protein which binds extremely strongly with biotin, making it unavailable for use in enzymatic reactions. Regardless of the root cause, the deficiency can usually be addressed directly with nutritional supplementation. ... Biotin is consumed from a wide range of food sources in the diet, but few are particularly rich sources. Foods with a relatively high biotin content include Swiss chard, raw egg yolk (however, the consumption of avidin-containing egg whites with egg yolks minimizes the effectiveness of egg yolk's biotin in one's body), liver, Saskatoon berries, and leafy green vegetables."