Keith Ayoob answers the question: 'What are Calories, Why Do They Matter?' February 1, 2009 -- Question: What is a calorie and why is it important to know how many calories there are in certain foods?

Knowing the calorie content of foods does not help people understand which foods are healthier, according to a study I recently co-authored in the Journal of Retailing. When study participants ...

Macy is a writer on the AI Team. She covers how AI is changing daily life and how to make the most of it. This includes writing about consumer AI products and their real-world impact, from ...

Whether it was counting carbs, calories, fat grams, sugar grams, protein grams, or sodium, we all became counters of something, says mindful eating expert Michelle May, R.D., M.D. Unfortunately, all ...