Our genes account for somewhere between 40-70% of the likelihood of having obesity.
We inherit our genes from our parents, and it has been estimated that 40-70% of our chance of having obesity is due to our genes. There have now been hundreds of genes identified which can contribute to the risk of obesity. Most of these genes by themselves have a small effect, but when combined can significantly increase the risk for obesity. While our genes play a fundamental role in influencing our risk for obesity, how our genes interact with our environment can impact this risk, in both good and bad ways. While our genes influence our risk for obesity; the impact of their contribution can be modified by environmental factors such as our lifestyle habits.