These days you can’t walk down an aisle at the grocery store without coming across a multitude of products all advertising their ‘gluten-free’ status. The list of items labelled gluten-free is endless – bread, pasta, cereal, chocolate, yogurt, vegetables, and even water. But what exactly is gluten? Was it even in those products to begin with? Should you be avoiding it? And are gluten-free products healthier than regular ones? This excellent video from TedEd by William D. Chey explains it all.