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Effects of mutations in the human uncoupling protein 3 gene on the respiratory quotient and fat oxidation in severe obesity and type 2 diabetes

Traditionally, greater than three standard deviations above the mean is considered elevated, but levels less elevated than this will often decline in patients supplemented with cobalamin or folate, perhaps indicating a relative deficiency of these vitamins

Orhan Kili et al., 2021

Vitamin B12, ingested with nutrients such as cobalamin, complexes with salivary haptocorrin, and is released abruptly from cobalamin by pancreatic proteases in the duodenum

This pain can vary from mild to severe and persist for months or even years