Here is the meta-analysis mentioned in the video.
https://www.jacc.org/doi/full/10.101...cc.2020.05.077
It's more balanced and informative than this sleazebag who has been disciplined by the Tennessee Board of Medical Examiners on two occasions for false advertising and dangerous practices. He also got an employer successfully sued for failing to stop him from sexually harassing cleaning staff, and may have hired arsonists to burn down his own, heavily tax-liened, clinic.