We invited subscribers to share what they wanted to know about ultraprocessed foods and healthy eating. Readers asked about food policy, how to identify ultraprocessed foods, how to create good eating habits in children, precision nutrition and more.

Kevin Hall, an internationally renowned nutrition and metabolism scientist who previously led the National Institutes of Health’s research on ultraprocessed foods, joined WSJ’s Andrea Petersen, who writes about nutrition and consumer health, and Jesse Newman, who covers food, to answer questions in the comments space.

Sort the commenting thread by “Most Liked” to see their answers.

And be sure to keep up with our continuing health, wellness and food coverage. Sign up to get an alert when Andrea or Jesse publishes an article.

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