lassesen.com/cfids/supplements/vitamin_d.htm
I rem someone found from blood test a lack of vitamin d…the most important and active for immune system and fatique is D3 .
…more it seems to play a big role about androgen receptors
My Vit D. is fantastic and I still have symptoms. You definitely want to make sure you get enough, because deficiencies can cause a whole host of health problems. Go outside and get in the sun.