‘Macros’ is short for ‘Macronutrients’ which divide into Protein, Fats and Carbs. Protein, Fats and Carbs are what make up your Calories.
Counting calories and Macros takes away the guesswork of not knowing how much food goes into your body. If you know exactly what is going into your body, you know how to adjust and change it. It’s science, if you eat more than what your body needs (being in a caloric surplus), you will gain weight, if you eat less than what your body needs (being in a caloric deficit), you will lose weight.
With this type of diet, it allows you to eat foods you enjoy within moderation. It is very flexible and therefore keeps you sane whilst getting the results you want. Arguably the most important point is that it is sustainable. Being on 500 calories a day will lose you weight, but it won’t be sustainable in the long run and you will ruin your metabolism which you will pay for later on in life. However, with this type of diet, you will feel great because you’ll be eating more, and you will be losing weight/body fat in a healthy way. Being accurate with your macros also means you are more likely to lose body fat and not just weight if you are in a caloric deficit, and build lean muscle mass and not just body fat when you are in a caloric surplus.