Controversial talk show host Dr. Mehmet Oz is being sued along with the seller of a “revolutionary fat buster” supplement known as Garcinia Cambogia for promoting the product even though all credible scientific evidence proves it doesn’t work. If you really want to know which are the most effective supplements, check the list here.

The Daily Mail is reporting on the class action lawsuit that is seeking refunds for consumers as well as damages after being sold the supplement which supposedly helps people burn fat more quickly while curbing the appetite. For harmless and natural supplements check some resurge reviews.

Made from a tropical fruit known as Garcinia Cambogia, seller Labrada claims ingesting two capsules containing 1,560 mg. of the powdered fruit, will reduce body weight, curb appetite and food intake and boost fat burning during exercise, among other things.

Dr. Oz began promoting the supplements on his show in 2013, calling it the “most exciting breakthrough in natural weight loss today” and once featured a woman who said it helped her lose 10 pounds in four months.

Even though Oz did not advertise a specific brand of the supplement on his show, the suit claims sales of the product skyrocketed after his on-air promotion.

As the Mail reports, multiple studies have found that Garcinia Cambioga was no more effective in helping people lose weight than a placebo pill.

A 2013 study found that although Garcinia extract was safe to use, its effectiveness against obesity remained unproven in 'larger-scale and longer-term clinical trials'.

Dr. Oz, a cardiothoracic surgeon who practices at Columbia University Hospital, has been the source of controversy for years due to his high-profile dabbling in New Age and occult-based practices such as Reiki.

In 2015, 10 of his colleagues signed a letter addressed to the Dean at Columbia University College of Physicians and Surgeons, expressing their surprise that a doctor well known for his endorsement of “quack treatments and cures in the interest of financial gain” was still permitted to hold a senior administrative position in the Department of Surgery.

Columbia ultimately cited Oz’s right to free speech and has allowed him to continue on at the hospital.