Blog · Weight loss
What is a calorie deficit? Safe weight loss explained
If you have searched calorie deficit for weight loss or how many calories should I eat, you are asking the right question. A calorie deficit simply means you consume fewer calories than your body burns over time. That gap can come from food choices, movement, or both—and it is the main lever behind predictable fat loss for most people.
TDEE, BMR, and maintenance calories
Your total daily energy expenditure (TDEE) combines resting metabolism, digestion, and activity. Maintenance calories are an estimate of what keeps your weight stable. Online calculators give a starting point; your real number shifts with stress, sleep, steps, and training. That is why pairing estimates with a food log or nutrition app beats guessing alone.
How large should a deficit be?
Small, consistent deficits are easier to sustain than extreme cuts. Many people begin around 10–20% below estimated maintenance or roughly a modest daily shortfall—then adjust based on weekly averages, hunger, and energy. If you feel wiped out or underfuel workouts, your deficit may be too aggressive for your current lifestyle.
Why tracking still matters
Even a good formula can drift. Logging meals reveals sauces, drinks, weekend meals, and bites that do not feel like “real food.” Whether you use a paper food journal or a calorie counter app, the habit builds feedback: eat → log → adjust.
Koda is an AI calorie tracker and iPhone food journal for natural-language meal logging. Log what you ate in seconds—calories and macros without endless database scrolling. Download Koda on the App Store.