My latest column for the San Francisco Chronicle tackles today’s vexing questions about vitamin D. How much do we need? How much is safe? How much of the fuss about it is due to marketing hype? No easy answers on this one, alas.
Next public appearance
This is a conversation about 101 Classic Cookbooks, 501 Classic Recipes (Rizzoli Books, 2013), with Clark Wolf, Marvin Taylor (curator NYU Fales Library), Rose Levy Beranbaum (author, The Cake Bible), and Madhur Jaffrey (actor and author). 7:30 p.m. 92ndY Tribeca, 200 Hudson St, Price $15, RSVP: here