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This is why sourcing diligence and independent verification matter for research-grade material
People with gastrointestinal conditions : Individuals with conditions such as Crohns disease, celiac disease, or those who have undergone gastrointestinal surgery are at higher risk of B12 deficiency
Sample Collection Methods We aim to make testing as practical as possible
Though they can all be directly ingested from these foods, they most effective when taken in larger quantities, either by oral supplements or by injection
