6) Does weight gain affect people differently, for example do genetics affect if and how someone loses weight?
Genetics play a large role in where your body fat is stored. When someone consistently eats too much food (more calories than they are able to burn), they will store those excess calories as body fat in different areas depending on things like gender and genetics.
When it comes to losing weight, some people suffer from a lower-than-normal metabolic rate, known as hypothyroidism. This means a person’s body may not burn as many calories as a person of equal height, weight, and gender who does not have hypothyroidism. Individuals with a metabolic disease can absolutely still lose weight, by eating fewer calories than others.
So, while genetic factors and certain health conditions can and do influence a person’s weight loss or weight gain, the basic underlying principles of weight loss still apply, which is that it’s all about how many calories you consistently burn versus how many calories you consistently consume.
This is a matter of physics known as the First Law of Thermodynamics and has been proven time and time again in metabolic ward studies.
We teach people how to take advantage of this law of physics by counting their macros, as counting your macros is really just a more precise way of counting your calories and thus controlling your energy intake.