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under the tongue) supplements and found that they were all effective at increasing B12 levels without significant differences between them
Research published in Journal of Clinical Biochemistry and Nutrition indicated that methylcobalamin leads to higher and more sustained tissue retention compared to cyanocobalamin, especially in neurological tissues
Drawing up your dose requires care to avoid introducing air bubbles or contaminating the solution
Another class of gastric acid inhibitors known as histamine 2 (H 2 )-receptor antagonists (e.g., cimetidine, famotidine, and ranitidine), often used to treat peptic ulcer disease, has also been found to decrease the absorption of vitamin B 12 from food
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