LINKS:
1: https://www.aad.org/media/news-releases/growing-evidence-suggests-possible-link-between-diet-and-acne
2: http://www.medscape.com/viewarticle/579326_2
3: http://www.nature.com/pr/journal/v62/n4/full/pr2007261a.html, http://pediatrics.aappublications.org/content/116/5/e681
4: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3900340/