Evergreen Life insights

Vitamin D insights

Are we getting enough vitamin D? We've been asking our users about the sunshine vitamin.

Insights you have helped us discover

  • 59% of unhappy users reported they were vitamin D deficient compared to 33% of happy users.
  • People who have a BMI between 25 and 30 are more likely to be vitamin D deficient.*
  • 51% of BAME users surveyed reported they were vitamin D deficient.
  • People who are aged 55 or over are more likely to be vitamin D deficient.*
  • People who spend more than 30 minutes outside are less likely to be vitamin D deficient.*
Are you supplementing?
The current guidance in the UK on vitamin D is that we should all supplement with 400 IU (10μg) daily to prevent deficiency. Many clinicians agree that 1000 IU would be safe for the majority of people (babies up to 1 year may need a different dose). But responses from our users indicate that most people aren't supplementing with vitamin D at all.

The graph below shows the percentage of the total users we asked "Are you currently taking vitamin D supplements? If so, what is your daily dose?". As you can see, 66% of users surveyed told us that they aren't taking any vitamin D supplements in spite of current UK guidance.

What factors are associated with vitamin D deficiency?
Certain factors are linked to vitamin D deficiency. We looked at answers to questions asked across our community in areas such as BMI, time spent outdoors, and diet.

In the graph below, the pink bars indicate a higher likelihood of vitamin D deficiency, whereas the green bars indicate a lower likelihood. As you can see, factors such as being obese, overweight, or aged over 55 are linked to an increased likelihood of being vitamin D deficient. Meanwhile, spending over 30 minutes outdoors per day and eating foods containing vitamin D are both associated with an increased likelihood of not being deficient.

Find out more about vitamin D, supplementation and factors that make deficiency more likely here.
Vitamin D and Happiness

Vitamin D levels are linked to mood. The higher your vitamin D, the more likely you are to report higher happiness levels. Equally, you are more likely to report feeling unhappy if your vitamin D is lower. This is demonstrated by the graph below which compares our users who've tested their vitamin D. Those who have good vitamin D levels reported that they were happier (67%) than those who were deficient (42%).

If you're looking for more ways to increase your happiness besides vitamin D, take a look at our 7 ways to feel happier.

*Statistically significant at the 99% confidence level; †Statistically significant at the 95% confidence level; ‡Statistically significant at the 90% confidence level
Insights disclaimer:
Coefficients disclaimer: Obese is defined as a BMI > 30 and Overweight is defined as 25< BMI <30 as per https://www.nhs.uk/conditions/obesity/
Trend line disclaimer: These graphs use information provided by over 24,000 Evergreen Life users. Percentages are displayed with a 95% confidence interval.

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