How Much of Our Weight Comes From Our Genetics?

i found an expert on genetics and weight, ruth los l o o s. i asked her the burning question, how much of our weight comes from our genetics? I would say it is about 50 50. And weat come from the environment, or more specifically, the toxic food environment that surrounds us. The kind of environment that you create within your home. Are you bringing in those hyper palatable foods, the junkt foods, to surround yourself with?"