Kathy Freston

I missed a tuna-fish sandwich with mayo on toasted wheat bread more than anything. Six months after I went vegan, I snuck into a deli and took one home. And, of course, it wasn't nearly as good as I fantasized. It tasted, well, fishy.

We've all seen chicken portrayed as the low-fat, heart-healthy alternative to red meat for years, but it no longer adds up. You might want to lean away from eating birds and lean toward more plant-based options of protein like black beans, lentils, tofu, chickpeas and whole grains.

If I had a magic wand, I would live in a building in New York, big enough so my friends, my family could all have apartments in it. We'd raise our kids in the same space and have backyard barbecues and get old and fat together.