References Pickart L, Margolina A
B12 deficiency is one of the most common and most frequently overlooked nutritional deficiencies, affecting those on plant-based diets, adults over 50, individuals on certain medications, and anyone with reduced gastrointestinal absorption
Dairy products such as fish, milk, poultry, eggs, and meat are the main sources of B12
The surgery removes a large portion of the stomach, including the gastric body and fundus the regions containing parietal cells responsible for producing intrinsic factor, a glycoprotein essential for the absorption of vitamin B12
If sublingual B12 doesn't improve your symptoms after a few months, switch to B12 injections since cellular absorption is superior
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