I don't know why you are getting downvotes. Vitamin D is a hormone. Everything upwards of 4000 IU per day is currently disputed territory. It may be safe to ta

I don't know why you are getting downvotes. Vitamin D is a hormone. Everything upwards of 4000 IU per day is currently disputed territory. It may be safe to take 5000 IU a day, some even suggest 8000 to 10000 IU per day. But studies still vary on this and discussions are being held. Don't be the lab mouse. Take max. 4000, otherwise get blood work done and take over 4000 long term only on supervision until this is really clarified. You DO NOT want hypervitaminosis D.