article_snippet: The allergist adds that there's a higher risk of food allergy among those who lack vitamin D - not just from sun exposure but in food. '
article_snippet: The quality of vitamin D in our foods like the way eggs and fish are farmed has changed over time,' Professor Katie Allen said. '
article_snippet: There was also possibly different levels of vitamin D and all of these could have been causes to the development of my peanut allergy.'
highlights_snippet: Professor Katie Allen says vitamin D deficiency and cleanliness could be the cause of such allergies .
  