
Average Reviews:

(More customer reviews)I have been using this B-12 for over a year now. My endocrinologist suggested it, since my oral diabetes medicine (metformin) seemed to be affecting my natural absorption of this vitamin, which he describes as needed for nerve health (and therefore a concern in diabetes patients, to avoid neuropathy) I take one in the morning, tucking it under my tongue as I get ready and commute into work. It does take a while to dissolve, because it is a fairly large pill, but it is usually gone in 15-20 minutes. It has a pleasant fruity taste, and is in the dosage range he advised. At first I tried a B multivitamin, but the amount of B12 in it was nowhere near what he wanted, and I would have to take too many pills (and end up with too much of all the other B vitamins, which I didn't need)
My B12 number has gone from too low, to outside the range on the high side. B12 has a low toxicity level and has no complications in most individuals, so he is not concerned that I'm outside the clinical range on the high side. (my lab sheet says the target range is 211-936 pg/mL - my latest two results have been hovering around 1500 - I believe I started in the 140s - very low)
Source Naturals is one of my favorite brands of supplements. I have been using their sublingual melatonin for over a decade. I believe them to be a trustworthy manufacturer, based on my experiences.
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