A conversation with Charles Platkin at 12:30 p.m. on The Wisdom of 90 Years: Dr. Marion Nestle on Food and Living Your Best Life. Registration is here.

A talk on Why Calories Count: From Science to Politics, 4:00 p.m. Mann Library, Stern Seminar Room (Rm. 160). open to the public. The talk is on video on the Mann Library’s site and also on YouTube.