Today’s topic is on Vitamin D, should we need more Sunshine? Sunshine has been covered in this blog, but mostly to understand whether we need sunscreen (answer is yes!) and what types of sunscreen and how to apply. Tips on sun protection from renowned dermatologists have been shared, such as
There is much talk about whether sun is good for our children with eczema, and there are some companies that recommend Vitamin D products (be it skincare or oral supplement). What we know about the sun and our skin is
- A child’s skin is thinner and thus more susceptible to harmful effects of ultraviolet light, such as sunburn and skin cancer.
- UV light is required for the skin to synthesize Vitamin D; vitamin D that comes from sunlight has been shown to increase the production of skin proteins (cathelicidin) and antimicrobial peptide (AMP) which protects against skin infection.
- For eczema patients, sun exposure is drying for skin and can aggravate eczema, esp. flare-up.
No wonder there is so much controversy on sunshine and vitamin D; in line with this Eczema Research News series, below are the studies from 2013 onward of the efficacy of Vitamin D:
Increased sun exposure during summer holidays associated with reduced eczema, but not related to Vitamin D level (here)
Vitamin D has some protective function for food allergy in infants (here)
Updating with study in Nov 2014 – where 186 children were regularly followed up at clinics for a four-year follow-up period. Low cord blood Vit D levels were associated with higher risk of food sensitization throughout childhood. Cord blood Vit D levels were inversely associated with the risk of milk sensitization at age 2, at which age a higher prevalence of milk sensitization was significantly associated with the risk of allergic rhinitis and asthma development at age 4.
Have anyone tried any Vitamin D related treatment? Do share in the comments, thank you!