Have certain medical conditions: Problems that can restrict vitamin B12 absorption include pernicious anemia (a rare autoimmune disease that keeps the body from making a protein necessary to absorb B12), digestive illnesses, such as celiac and Crohns diseases, and immune disorders such as lupus, among others
For instance, for sheep in extremely deficient areas, repeat dose every 2-3 months
Oral Supplements: A Quick Comparison For people with a confirmed deficiency, especially those with absorption problems, injections generally act faster than oral supplements: Injections: bypass the gut, reliably reach the bloodstream, and often produce noticeable changes in energy and mental clarity within days for those who are deficient
Its characteristic absorption mode and proven efficacy suggest it could effectively address B12 deficiency in a broad range of populations, including those with gastrointestinal conditions and pernicious anemia, thereby supporting overall health