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However, scientific research shows that very high-dose oral B12 (1,000-2,000 mcg) can be effective for some, as about 1% can be absorbed without intrinsic factor
The front and outer thigh offer a generous area of subcutaneous tissue, easy access without contortion, and absorption rates that clinical research confirms are comparable to the abdomen
This combination of amino acids and vitamins improves the metabolism of dietary fats
R., Nathan, S
Nerve: 300 to 500 mcg once or twice daily, subcutaneous, 8 to 12 weeks
doi:10.1080/1028415x.2019.1627770 Peikert A, Wilimzig C, Kohne-Volland R
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