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.

This will be a conversation with former FDA Commissioner David Kessler and other speakers about how diet-related chronic diseases are driving up heath care costs. Washington Post Live, program called Health 202 Live, 3:30 to 5:00 p.m., 1301 K St. NW. Information about the event and the other speakers is here. To register, click here.