Introduction The trick to lose weight, in my humble opinion, has a lot to do with carefully picking what you’re eating and keeping track of your calories and macronutrients . It takes a bit of effort to understand the logic behind it but one thing I’m sure of is that, once grasped, it works 100% . 1. Calories Deficit To start with, we must highlight the fact that in order to lose weight, be it belly fat, double chin, fats in your legs, whatever - they all have the same molecular structure: adipose tissue - there must be a caloric deficit of 500 calories maximum . If you go beyond that, you would start feeling less energetic and have some undesirable unintended effects. The science behind this is that your body has a Basal Metabolic Rate (i.e how many calories it needs to be optimally functioning and going) that is determined by how heavy you are, male or female, tall, old, and active at day - to - day basis. Under the right conditions (more on this later), if you give your body 5