It's just one of the causes of B12 deficiency ... Studies have shown that at doses high enough to fully saturate intestinal B12 receptors, oral B12 is effective, despite a lack of intrinsic ...
Melissa Nieves, LND, RD, is a registered dietitian with Practical Nutrition, LLC. She also works as a bilingual telehealth dietitian for Vida Health Program. Rich Scherr is an updates strategist ...