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L-Carnitine is a naturally occurring nutrient found in foods like red meat, poultry, and dairy, and is also produced in the body

For individuals with underlying conditions that contribute to B12 deficiency, such as pernicious anemia or gastrointestinal disorders, follow-up care may involve managing these conditions to optimize B12 absorption

The Bottom Line While Mounjaro is proving to be a game changer in treating type 2 diabetes and obesity, this drug comes with a considerable list of side effects

B12 is present in supplements and foods that have been fortified, making them potentially easier to absorb

However, when very high oral doses are taken, approximately 1% can be absorbed through passive diffusion, independent of intrinsic factor, which explains how mega-doses can still raise serum levels

When both B12 and folate deficiencies coexist, coders should apply both D51.0 (if intrinsic factor deficiency confirmed) and the appropriate D52 code