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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which of the following vitamin deficiency is found in patients with gastric cancer ?
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The correct answer is  Gastric cancers can grow to an extent to cause damage to cells producing intrinsic factors and hence vitamin B12 deficiency. Vitamin B12 deficiency may also occur in post gastrectomy patients of gastric carcinoma, autoimmune pernicious anemia predisposing to gastric cancer and atrophic gastritis.