K.S.
Yes you can take 2, but try going to a local food co-op to find a better assortment of vitamin D. We buy 5000 I.U tablets. After you have been taking the D3 for a while, make sure you go back and have them retest you. 2000 I.U seems very conservative for someone with a actual deficiency. Make sure the dosage they put you on actually brings you back into balance.