By imposing burdensome regulations on genetic testing, the FDA will put small, innovative players out of business and leave the field to "large commercial entities" with near-monopoly power and few incentives to keep up with the latest science.
People with a specific mutation in one gene are substantially more likely to be obese than those without it. But they are also at higher risk of suffering from environmental factors.
By not taking university press officers and research press releases seriously, scientists are often complicit in the media falsehoods they so often deride.