Dr. Mehmet Oz, an Ivy League-educated cardiothoracic surgeon, isnt known for dispensing sage medical advice.

To augment tried-and-true diet and exercise, the star of The Dr. Oz Show has peddled some bizarre and potentially dangerous cures for everyday ailments, including COVID-19.

And now that Oz, a Republican, has joined the fray in Pennsylvanias U.S. Senate race, the celebrity doctors most out-there advice and treatments are certain to receive greater scrutiny, if not prominent placement in attack ads. Oz has promoted everything from raspberry ketones , berry-red pills promising to melt excess fat, to hydroxychloroquine, an antimalarial drug falsely touted by former President Donald Trump and the right-wing as a COVID-19 miracle cure.

Before becoming a nationally syndicated health influencer, Oz was known as a top heart surgeon with a prestigious faculty appointment and 11 patents relating to heart surgery.

But his propensity for New Age treatments and exaggerated marketing eventually became his calling card.

In 2015, prominent doctors called on Columbia Universitys medical dean to remove Oz from the medical schools faculty. Oz pushed back . Today, hes listed as the director of Columbias Integrative Medicine Center, which combines conventional medicine with nontraditional treatments such as yoga and meditation.