So much can/should be done: food first of all, by also extra B12 etc
Let’s say that you want to add just a few very simple CHEAP herbs on most days, to your program.
You may want to choose these [from the link below] for example because of an established tradition , but there are many more herbs which may fir.
Except from Gotu kola] most of them may easily be got everywhere , not necessary from the USA [but some companies over there are very trustable in their quality and …..cheap] If they grow in your area you may also take them as a tea.
If you live in India/China/Africa etc you may have a total different choice
If you are “lazy” then take one or two of these capsules every day with food [from gotu kolsa one is enough]