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Although distinct differences exist between methylcobalamin and cyanocobalamin, both have beneficial effects on health and can prevent B12 deficiencies ( In fact, one study found that treating seven B12-deficient people with oral methylcobalamin normalized vitamin B12 levels in their blood within just 2 months ( Similarly, another study showed that taking cyanocobalamin capsules for 3 months also increased vitamin B12 levels in 10 people with pernicious anemia, a condition caused by impaired B12 absorption ( Both types of the vitamin may also provide other health benefits

Loss-of-function mutations in the BCKDK gene are associated with a phenotype that is characterized by persistently reduced levels of BCAA in body fluids, developmental delay, microcephaly, and neurobehavioral abnormalities

The application of xyloglucans on the mucosal surfaces may function as a protective agent in the gut barrier

Sulphite sensitivity is a separate condition that typically causes respiratory or gastrointestinal symptoms, so you can safely consume sulphite-containing foods and beverages unless you have a documented sulphite sensitivity independent of your sulphonamide allergy

Carrillo-Vico, A., et al