Our Deepest Appreciation to Our Participants

Thank you! The data you have provided through D*action is doing, and has already done, much to move science into practice. We know the questionnaire can be long, but take a look at all the good it is doing for you as well as others. It is exciting that we have such a large group of people who are willing to provide information and test.

Beyond simply testing to find out your vitamin D and/or other nutrient levels, please read this blog to better understand how the information you provide with each questionnaire helps us and others as well. This is a great example of what can be done – one person at a time – with a grassroots effort.

As long as you completed each of the required sections in the questionnaire without skipping around, your blood spot testing process may now be completed.

Please contact [email protected] for any questions or help.

(If you accessed the questionnaire from your D*action account, close this tab to get back to your account.)