The International & American Associations of Clinical Nutritionists (IAACN) has held an annual scientific symposium since it was founded 22 years ago. The 2013 three-day event will take place at the Manchester Grand Hyatt in San Diego, California, from August 15 to 17, with registration on the 14th from noon to 8 p.m. The topic of the symposium is “Epigenomics and Orthomolecular Nutrition: Keys to Sculpting Optimal Health.”