Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin B12 is an essential nutrient with well-established roles in red blood cell formation, neurological function, and DNA synthesis. Its direct use in supporting the "stomach" as an organ is somewhat limited; however, there is scientific validation for its role in the digestive process. Specifically, Vitamin B12 absorption requires gastric acid and intrinsic factor, both produced in the stomach. Conditions that impair stomach function, such as atrophic gastritis, chronic use of proton pump inhibitors, or surgical removal of parts of the stomach (gastrectomy), can lead to Vitamin B12 deficiency due to reduced intrinsic factor or gastric acid. Supplementation is therefore medically indicated in individuals with these gastric issues to prevent or treat deficiency. However, Vitamin B12 is not used to "support" a healthy stomach directly, but rather to correct deficiencies resulting from stomach dysfunction. There is minimal evidence that it benefits the stomach in otherwise healthy individuals or that it improves gastric function per se. Thus, the primary scientific justification relates to deficiency states caused by stomach-related problems rather than proactive stomach support.

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