That is a cut. A cut is literally any calorie deficit from maintenance. If you lose weight by changing your diet (or energy expenditure while keeping diet the s

That is a cut. A cut is literally any calorie deficit from maintenance. If you lose weight by changing your diet (or energy expenditure while keeping diet the same) by definition you’re on a cut. Most people that deliberately do this would cut at 200-600kcal a day to be effective though, otherwise minor fluctuations make a, say, 100kcal deficit difficult to measure.