Total daily energy expenditure, or TDEE, is just jargon for what most of us know as metabolism. In simpler terms, it’s about understanding how your body burns energy throughout the day.

Much like how long it takes to walk 10,000 steps and how far you’ll walk over 10,000 steps, how many calories you’ll burn from walking 10,000 steps depends on a few factors. There’s no X steps = Y ...