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Fact check: What were Dr Ania's and Oprah Prozenith's first collaborations?

Checked on August 15, 2025

1. Summary of the results

Based on the available analyses, Dr. Ania Jastreboff and Oprah Winfrey collaborated on a podcast discussion focused on GLP-1 medications and weight loss drugs [1]. Multiple sources confirm that Dr. Jastreboff, a Yale researcher, appeared on Oprah's podcast to discuss how weight loss drugs affect the brain and the science behind medications like Ozempic [2] [1].

However, the analyses do not explicitly identify this podcast appearance as their first collaboration - they simply reference it as a notable collaboration between the two [1] [3]. One source mentions both a podcast appearance and a video collaboration, suggesting there may have been multiple formats of collaboration [3].

2. Missing context/alternative viewpoints

The original question contains a significant factual error - it refers to "Oprah Prozenith" rather than Oprah Winfrey. This appears to be a conflation of two separate entities, as the analyses reveal that ProZenith is actually a weight loss supplement company that markets itself as a "science-backed alternative" to trending weight loss methods [4].

The analyses also reveal important context about fraudulent Oprah endorsements in the supplement industry. One source specifically discusses how a Utah woman was scammed by a supplement that was falsely endorsed by a "fake Oprah" [5]. This suggests there is a pattern of companies inappropriately using Oprah's name and likeness to promote weight loss products.

3. Potential misinformation/bias in the original statement

The original question appears to contain deliberate or accidental misinformation by combining Oprah Winfrey's name with "Prozenith," creating a fictional entity called "Oprah Prozenith." This could be:

  • An attempt to create confusion between legitimate medical discussions (Oprah's collaboration with Dr. Jastreboff on evidence-based weight loss medications) and commercial supplement marketing (ProZenith's products)
  • A reflection of the broader problem of fake endorsements in the weight loss supplement industry, where Oprah's name is frequently misused [5]

The question's framing assumes these collaborations exist when the evidence shows Dr. Ania Jastreboff collaborated with Oprah Winfrey, not with any entity called "Oprah Prozenith." This type of name manipulation could benefit supplement companies like ProZenith by creating false associations with credible medical discussions and trusted media personalities.

Want to dive deeper?
What were the key findings of Dr Ania's research with Oprah Prozenith?
In what year did Dr Ania and Oprah Prozenith first start working together?
What were the topics of Dr Ania and Oprah Prozenith's initial public talks?
How did Dr Ania and Oprah Prozenith meet before their first collaboration?
What impact did Dr Ania and Oprah Prozenith's early work have on their respective fields?