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Vitamin B12 is found primarily in animal products
Methylcobalamin is best, unless you suffer from Lebers hereditary optic neuropathy (1 in 30,000 to 50,000 people), where hydroxy B12 is safer
Discard cloudy or discolored solutions
As a result of this difference, IGF-DES has considerably reduced binding to the insulin-like growth factor-binding proteins (IGFBPs) and enhanced potency of approximately 10-fold in vivo relative to IGF-1
They have a vague sense of being unwell, and that is all they know
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