One way genetics comes into play is with your appetite. Genetics can surprisingly affect your appetite as well. It can make it so you have a massive appetite, or even to the point where you can’t eat. In my research, I found that your appetite is affected by genetics in two key ways.
Your response to the sight or smell of food
How much you need to eat to feel full
In my interview as well, when I asked about how genetics affect bodybuilding, Max highlighted the importance of appetite throughout his interview in each of his answers. Diet is key in bodybuilding and can even be the key difference in whether you build muscle or not. If you don’t eat enough, you don’t supply your muscles with the nutrients it needs to grow. If you don’t eat enough, you could even be losing muscle by going to the gym. This can especially impact infants since they are more, “vulnerable to overeating and developing obesity in an environment where food cues are pervasive, opportunities to eat are plentiful and portion sizes are large” (Llewellyn page 2). This can cause struggles throughout the rest of their life with obesity. From the same source, I even found that, “excess weight gained during the early years, in particular, rapid weight gain during the first 2 years of life, are a major risk for adult obesity” (Llewellyn page 1). This can cause struggles for adults for the rest of their lives with obesity just from the influence of food as a child, which could be completely determined by their genetics. Struggling with obesity for your whole life can be very demotivating when it comes to trying to lose weight. It can even cause them to never even attempt to go to the gym since they’ve always been overweight.