Nutrition Science
Science-backed nutrition information and research
Does Eating Breakfast Boost Your Metabolism? What Research Shows
Will skipping breakfast slow your metabolism and cause weight gain? Here's what controlled studies actually show about breakfast and metabolic rate.
Do Negative Calorie Foods Exist? The Truth About Celery and Other Claims
Do celery, cucumbers, and other foods burn more calories to digest than they contain? Here's the math on 'negative calorie' foods and what actually happens.
Can You 'Boost' Your Metabolism? The Truth
Green tea, spicy foods, meal timing—do any metabolism 'boosters' actually work? A science-based look at what really affects your metabolic rate and what's just marketing.
Does Eating Late at Night Cause Weight Gain? The Science
Separating fact from fiction on late-night eating and weight gain. What the research actually shows about meal timing, metabolism, and your waistline.
Why Your Weight Fluctuates Day to Day (And Why It's Normal)
Your weight can change 2-5 pounds overnight without any fat gain. Learn the science behind daily weight fluctuations and how to interpret your scale readings accurately.