Why plan by the week?
Your body doesn't reset at midnight. Weight changes with your energy balance over days and weeks, so a 500 kcal deficit every day and a week with lighter weekdays and a bigger Saturday can end up in the same place. A weekly budget lets your plan fit your life: meals out, weekends and birthdays included.
How the budget is worked out
Your weekly budget is your maintenance calories for seven days, minus the deficit you're aiming for:
weekly budget = (maintenance − daily deficit) × 7
For example, with maintenance of 2,400 kcal and a 500 kcal daily deficit, your weekly budget is 1,900 × 7 = 13,300 kcal. Eat that across the week in any pattern and you'll be in the same 3,500 kcal weekly deficit, roughly a pound of fat.
Ways to spread it
- Evenly: the same amount every day. The simplest to follow.
- Weekends at maintenance: eat normally on Saturday and Sunday, and make up for it with a slightly bigger deficit on weekdays. With the example above, that's about 1,700 kcal Monday to Friday.
- One bigger day: a planned meal out or treat day, with a little less on the other six.
Or type a number on any day to fix it, and the rest of the week shares what's left.
Is calorie cycling better than an even deficit?
For weight loss, neither is better: the weekly total is what counts. The difference is how easy it is to stick to. Some people find a strict daily number easier; others do much better knowing the weekend is planned in. Pick the pattern you're most likely to keep up.
Recomping: eating at maintenance to lose fat and build muscle
You don't always need a deficit. Body recomposition, or "recomping", means eating around maintenance while lifting weights and eating plenty of protein. Over time you can lose fat and gain muscle at the same time, so you look and feel leaner even if the scale barely moves.
It works best if you're new to strength training, coming back after a break, or carrying more body fat. If you're already lean and well trained, progress is much slower, and a separate cut and build usually works better. To give it a fair chance:
- Lift regularly: two to four sessions a week of resistance training that gets harder over time. This is what tells your body to build muscle.
- Eat enough protein: around 1.6 to 2.2g per kg of body weight a day is the range most often recommended.
- Hold maintenance over the week: choose Maintain above. Many people eat a little more on training days and a little less on rest days, which the planner handles: type a higher number on your training days and the rest balance out.
- Judge it by more than the scale: your weight may stay flat while fat goes down. Waist measurements, progress photos and getting stronger are better signs.
A small deficit of 200 to 300 kcal a day can also work for recomping if you have more fat to lose; just keep the protein and training the same.
Questions
What is a weekly calorie budget?
It is the total calories you can eat across a week while still hitting your goal. Instead of a fixed number every day, you can eat more on some days and less on others, as long as the week adds up.
What is calorie cycling?
Calorie cycling means eating different amounts on different days, such as more at weekends or on training days, while keeping the same weekly total. It is another name for planning by a weekly budget.
Can I eat at maintenance on weekends and still lose weight?
Yes, as long as your weekdays make up the difference. A 500 kcal daily deficit with weekends at maintenance needs about 700 kcal a day less on weekdays instead.
Can I lose fat and build muscle at maintenance?
Yes, especially if you are new to lifting, returning after a break or have more fat to lose. Eating around maintenance with regular strength training and plenty of protein lets many people lose fat and gain muscle at the same time. Progress shows in measurements and strength more than on the scale.
How low should my lowest days go?
Most adults should not go below about 1,200 calories a day without medical supervision. The planner warns you if any day drops under that.