Cold and Flu Season is Approaching (Part 4)
For our final post of the series on Cold and Flu Season is Approaching, we will be focusing on what else, besides vitamin D, might help decrease the risk of getting a cold or...
BMI and Physical Activity among GrassrootsHealth Participants
In this blog series we are taking a look at the characteristics of the over 13,000 GrassrootsHealth participants worldwide. In earlier posts we showed the demographics and smoking and alcohol use within the GrassrootsHealth...
Don’t Assume Your Vitamin D Level is OK — Here’s why
When it comes to how vitamin D supplementation affects vitamin D serum levels, it is important to recognize the wide range of serum level responses that can be produced at any specific supplementation amount....
Average Omega-3 Index by location among GrassrootsHealth participants
As we saw in an earlier post, vitamin D levels vary by location among GrassrootsHealth participants. In addition to vitamin D testing, more than 1,800 participants have also measured their Omega-3 Index using the...
Cold and Flu Season is Approaching (Part 3)
Our “Cold and Flu Season is Approaching” series began with an introduction to the correlations seen between cold and flu season and seasonal changes in vitamin D levels, and was followed by a post...
Cold and Flu Season is Approaching (Part 2)
In our last post about cold and flu season approaching, we reviewed similarities between months with the highest flu activity and vitamin D levels in a general population, as well as the risk reduction...
Smoking and Alcohol Use among GrassrootsHealth Participants
More than 13,000 people worldwide have participated in the GrassrootsHealth study! In this blog series we are taking a look at the characteristics of the GrassrootsHealth participants. In earlier posts we showed the age,...
Cold and Flu Season is Approaching (Part 1)
October is generally the month when we start to see an increase in cold and flu activity. What can you do, starting now, to decrease your chances of getting the cold or flu, or...
Vitamin D levels and supplemental intake among Canadian GrassrootsHealth participants
As we saw in an earlier post of this series, GrassrootsHealth participants reside in 55 countries worldwide with over 1,000 residing in Canada (the country with the largest number of participants after the United...
The Effectiveness of Vitamin D Sprays
One of the questions we have received from our D*action participants is “Are vitamin D sprays as effective as other forms taken by mouth, such as pills and capsules?” This is a concern especially...