Here is a link to 1,000 IU dosage: http://www.amazon.com/NOW-Foods-Vitamin-1000-Softgels/dp/B000A0LE6O/ref=sr_1_1?s=hpc&ie=UTF8&qid=1383002971&sr=1-1&keywords=

Here is a link to 1,000 IU dosage: http://www.amazon.com/NOW-Foods-Vitamin-1000-Softgels/dp/B000A0LE6O/ref=sr_1_1?s=hpc&ie=UTF8&qid=1383002971&sr=1-1&keywords=vitamin+d3+1000+iu http://www.amazon.com/NOW-Foods-Vitamin-1000-Softgels/dp/B00... You may want to opt for the 600 IU if you get some sun as it is. I live in Chicago, so no much sun for me in Winter time.