Some we know better by their number, like vitamin B12. Others, such as B1 ... suggest that you take a supplement. If you have symptoms of low B1, it can take a few weeks before they go away.
How Pre And Postnatal B-12 Vitamins ... vitamin E, resulting in a reduction in damaging inflammation, a study ... Vitamin D Supplementation Seems to Alleviate Depressive Symptoms in Adults Aug.