One family is found in archea, eubacteria, protists, fungi, and plants, but is generally absent from metazoans (multicellular-animals)
They absolutely are
It is commonly prescribed in cases of vitamin B deficiency, peripheral neuropathy, general weakness, fatigue, anemia, and during recovery from illness
The FDA said that they have received 136 reports of adverse events occurring in people using compounded GLP-1 drugs containing tirzepatide for weight loss
However, calling it the active-B12 test is slightly misleading, because it measures all B12 bound to transcobalaminincluding biologically inactive forms
Albertsons and Walmart have both recently acknowledged that the sale of GLP-1 medications used both for weight loss and managing chronic conditions including diabetes have at least slightly helped sales for their pharmacy businesses