After a Historic Nutrition Summit, What’s Next?

The White House Conference on Hunger, Nutrition, and Health, the first such conference in more than a half-century, produced a plan to tackle youth malnutrition and the generally poor American diet and created some optimism the event would mark a turning point on that score.

But there also was significant criticism of the conference—and recognition that a one-day summit in Washington, D.C., wasn’t alone going to overcome the many obstacles on the long slog to help the nation eat better.

“It accomp…