One of the more pernicious tropes in the world of pseudoscience is that DNA in vaccines GMOs are going to magically incorporate into your cells changing you from a human into a sasquatch with ears of corn growing out of your head. Now that would be fun to see, but unless there’s a mad scientist out there trying to grow ears of corn out of a hirsute humane that looks like Sasquatch, it will probably never happen.
And most certainly consuming DNA in vaccines or eating GMOs with a new gene are not going to cause anything at all to any human I know.
On 19 November 2015, the US Food and Drug Administration (FDA) announced that a new GMO salmon, called AquAdvantage, is just as safe as any other salmon for consumption. The FDA based their decision on boatloads of data submitted by the company that developed the GMO salmon, Aqua Bounty Technologies, along with independent peer-reviewed data.