A Fitness Trainer Shares 9 Reasons You're Struggling to Lose Weight (and How to Fix It!)

Saying you ate "half an avocado," could mean anything, since calories range between sizes. "A heaping tablespoon instead of a leveled one can be the difference in at least 50 extra calories," Marci said. If you want to be precise about what you're eating, measure your food with a scale. You don't have to do this forever, but a week or two of accurately measuring your food can be eye-opening.