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Comparison Table Third-party tested Certified USDA Organic and Clean Label Project 120-day supply Easy to take form (spray) Third-party tested Certified non-GMO Free of soy, dairy, gluten, and major allergens Easy to take form (liquid) Unflavored Third-party tested Certified USP Free of gluten, artificial sweeteners, flavors, and high-fructose corn syrup Easy to take form (gummy) Dosage flexibility Third-party tested Certified non-GMO and USDA Organic Free of gluten, dairy, soy, artificial colors, flavors and preservatives Low-dose option Third-party tested Certified non-GMO and registered with NSF International Gluten-free Lozenge can be chewed or allowed to dissolve Third-party tested 100 percent vegan Sustainable glass bottle A portion of supplement sales go to nonprofit organizations Third-party tested Free of top 8 allergens Easy-to-take form Less than $0.10 a serving Contains folate Third-party tested Free of artificial flavors, dairy, soy, and gluten Dissolves in under 30 seconds Large dose per serving Third-party tested NSF-certified Gluten-free, dairy-free, and soy-free Bioavailable form of B12 Third-party tested Non-GMO verified 23 organic powdered fruits and vegetables Includes probiotics and enzymes for gut support Free of artificial flavors, sweeteners, additives, binders, or fillers Other Noteworthy B12 Supplement Companies Throughout this vitamin B12 supplement review, we researched more than 30 supplement options to find the best ones
Annals of Clinical and Laboratory Science (2015) 6
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