Its known for its oily, flaky appearance and may cause swelling or white patches ( One reason B6 deficiency may result in skin rashes is that the vitamin helps synthesize collagen, which is needed for healthy skin
It has low biological activity and needs to be converted to a more active form by the liver
B3 is also a component of the glucose tolerance factor which is released every time your blood sugar rises (helps to regulate blood sugar levels)
If you plan to titrate up quickly, a larger vial is more cost-effective
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"Measures of adiposity and body fat distribution in relation to serum folate levels in postmenopausal women in a feeding study"