 And the statistics show that back in the 70s when we started getting cable networks and of course with the internet, we're not going outside and most of us get no vitamin D from the sun. What makes your Fast Mel D3 formula a much better choice? Well, Chris, first of all, I put 5,000 units of vitamin D3 per serving in each tablet. So you can actually feel the difference. Second, I use the right type of vitamin D in my formula.