You can not take all of them at the same time either, as some form insoluble complexes with others and you won't absorb them. Some can be absorbed with high doses by passive diffusion but others can not. In my opinion it is ever good to do a shotgun approach with B vitamins.
Yes, it is possible to take B vitamins together - people do it all the time, both in food and supplements.
A shotgun approach is not a good idea, it is best to test and take what's needed ensuring correct cofactors are in place.
Still, having read through the author, Dog Person's writings, they are riddled with inconsistencies and odd ideas, and peoole following her advice ended up frustrated and confused.
Manganese activates an arginase enzyme and enables use of arginine. It is also used in MnSOD to defang superoxide radicals made by mitochondria. It ensures proper brain, nerve and liver function, the formation of connective tissue, bones, blood-clotting factors, and sex hormones.
Its also useful for protein and amino acid digestion and utilization, as well as the metabolism of cholesterol and carbohydrates. It helps utilize several nutrients, like choline, thiamine, and vitamins C and E, and helps with calcium absorption and blood sugar regulation.
So, its used in a lot of places, which may need more or less, depending on codes for availability. And if one has poor digestion, or oxalate binding metals, a deficiency could develop.
