Losing weight

Published 27 September 2026.

Losing weight comes down to eating a bit less energy than you use, for long enough. The rest is making that easy to keep up. It is very doable.

Calories in, calories out

Your weight changes when the calories you eat and the calories you burn don’t match. Eat less than you burn and your body makes up the difference from stored energy.

That part is simple. What trips people up is that the body adapts: as you lose weight, you burn less, so progress slows over time [1].

The 3,500-calorie rule overpromises

The common rule says a 500 kcal daily deficit loses 1 lb a week, forever. Researchers at the NIH found it overestimates weight loss because it ignores that adaptation [1]. Expect faster progress in the first weeks and slower progress later. That is normal, not failure.

For a realistic projection, use the NIH Body Weight Planner [1].

Tracking works

In a systematic review, tracking what you eat, your activity or your weight was consistently linked to more weight loss, though the studies had limitations [2].

You don’t have to track forever. A few weeks of logging teaches you what portions actually look like. Every recipe here lists calories and protein per serving, which makes it easy.

What makes it easier

• Start with the calorie calculator. Pick “lose slowly” first. The weight loss calculator shows when you could reach your goal.
• Protein at every meal. The guidelines suggest 1.2–1.6 g per kg of body weight [3]. Filter recipes by the high-protein tag.
• Get your fiber. High-fiber diets are more filling and linked to lower body weight [4]. Aim for 25 g a day (women) or 38 g (men); see Fiber.
• Watch the oil. A tablespoon of oil is about 120 kcal. It is the easiest place to cut without noticing.
• Weigh a few times a week and look at the weekly average. Day-to-day swings are mostly water.
• Move. Adults should aim for 150 minutes of moderate activity and 2 days of strength training a week [5]. It helps health and keeping weight off, even if the calorie burn is modest.

Talk to a doctor if

You have diabetes, take medication that affects appetite or blood sugar, have a history of disordered eating, are pregnant, or want to lose weight quickly.

General information, not medical advice. If you have a health condition, are pregnant or take medication, check changes with your doctor.