First off thanks for info on Grapeseed Extract it is the bomb! I have been taking fish oil Omega 3 and fish oil concentrate. Is this vit d? my doc and pharmacist said no. If not no wonder my d stays low.It was 9 on last t est! I just got the MSM you take and potassium and acidphilus. There are other things I take from my Nucca chiro that are whole food supplements. I hate taking drugs and was just put on Doxycyline for Lyme.Plus a new muscle relaxer and Lortab. re-thinking this and may go natural. So what is Vit D?