Among the most popular ones that you're most likely to come across in supermarkets are curly, Tuscan, and Russian red kale.

"Kale is popular for its health and versatility, and because it can be consumed raw, baked, blended or sauteed," says Caroline Susie, a registered dietician and national spokesperson for the Academy ...

Gregory Moore does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...