Hydroxocobalamin is one of the most common sources of B12 that medical professionals give through an injection
Melatonin synthesis and SAM In Methyl B12 deficiency, there is a greatly reduced production of SAM, and breakdown products of tryptophan, Kynurenic acid (KA) and Quinolinic acid (QA), as well as the breakdown product of Serotonin, 5-Hydroxyindoleacetic acid (5HIAA) start to accumulate and can be detected as elevated levels in urine
Research suggests it plays a significant role in maintaining structural resilience in tendons and ligaments
Since vitamin D facilitates calcium absorption, there is a tendency that it will cause gastrointestinal distress and lead to a buildup of calcium
Brain 145:e77e78 Loens S, Chorbadzhieva E, Kleimann A, Dressler D, Schrader C (2017) Effects of levodopa/carbidopa intestinal gel versus oral levodopa/carbidopa on B vitamin levels and neuropathy
Vitamin B12 is a water-soluble vitamin that plays a crucial role in the formation of red blood cells, the functioning of the nervous system, and the production of DNA