No problem taking folic acid (folate in food, folic acid in supplements & fortified foods) when B12 is low if adequate B12 is taken as well.

Unfortunately, some people still are treated with folic acid when B12 deficiency is the problem. Folic acid will make megaloblastic/macrocytic anemia go away (or keep it away) while allowing the damage due to B12 deficiency to continue.

Some researchers believe also that taking lots of folic acid without sufficient B12 when B12 deficiency exists can hasten damage.

Folic acid is one of the things that can mask (hide) the blatant symptom (megaloblastic/macrocytic anemia) many doctors still think must be present if B12 deficiency exists.

I think people should take B complex in addition to their B12 (at a different time of day) just in case any of the other B vitamins are in low supply.

At least 1000 mcg B12.

rose