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Age-related decline in gastric acid production and intrinsic factor availability may reduce the bodys ability to absorb oral B12 and other nutrients, making IM delivery a practical alternative
Researchers associate a vitamin B12 deficiency with various health issues, megaloblastic anemia neurological changes and disorders infertility depression neural tube defects and developmental delays in children born to those with a vitamin B12 deficiency Supplementation may help to reduce the risk of these health issues
2018, doi:10.1155/2018/1968450 Tabrizi R, Ostadmohammadi V, Lankarani KB, et al
The Eight B Vitamins and Their Roles Vitamin B1 (Thiamine) Supports carbohydrate metabolism, nerve conduction, cardiac function, and enteric nervous system signaling
