For suspected macro-B12, precipitation with PEG is the test most often reached for, though it is nonspecific and can remove B12 that is fully available to cells, so direct measurement of the binding proteins, haptocorrin and transcobalamin, may be more informative when it is available
Geriatric Dosing Considerations Older adults often have health issues and take many medicines
Vegans can find natural source of vitamin B12 in nutritional yeast, fortified cereals, fortified soy milk, fortified meat analogues (foods made using wheat gluten or soybeans to resemble animal flesh), as well as vitamin B12 supplements that are recommended to be taken during pregnancy and conception Pregnant women, particularly, must take special care to fortify themselves with all the nutrients for their developing babies
enabling them to function more effectively in their daily activities