#Okayama #Red Yeast Rice #Puberulic Acid #Mycotoxins Society

In-depth Look into the Inquiry on Puberulic Acid Claims

The growing interest surrounding health supplements has led to a series of investigations into their efficacy and safety. A recent inquiry from a Japanese company, Kunsei Club, has sparked a significant debate regarding the scientific backing of claims related to Puberulic acid in red yeast rice supplements. This inquiry is particularly noteworthy in light of the Japanese Ministry of Health's refusal to disclose essential documents that could substantiate these claims.

Background of the Inquiry

On July 29, 2024, the Ministry issued a notification stating that it does not possess any documents that scientifically prove the presence of Puberulic acid in red yeast rice. The documents in question were part of the company's requests for public information (Request Numbers: 444 and 495). The Ministry cited that it did not have any records or reports received from various testing institutions that reference Puberulic acid, including necessary test result reports and analysis data.

Specifically, the documents they declined to disclose included comprehensive evidence such as raw data, reports from registered testing institutions, and identification records regarding Puberulic acid. As a result, Kunsei Club has sent an inquiry letter to six authors of a recent study published in the journal „Mycotoxins”, requesting confirmation of the scientific evidence behind their claims.

Scientific Inquiry and Related Documents

The subject of the inquiry is the paper titled “Scientific Information on Puberulic Acid Detected in Red Yeast Supplements”, published in Volume 74, Issue 2 of „Mycotoxins” in May 2024. This paper begins by stating that Puberulic acid, a mycotoxin, was indeed detected in red yeast rice supplements as a verified fact. In light of the Ministry's response, Kunsei Club is seeking clarification on whether the authors had access to supporting primary materials, such as analytical data and other identification documents, at the time of the manuscript's submission.

The authors are being asked either to specify these materials or to disclose the sources they relied upon in documenting such claims if they did not possess the aforementioned data.

Recipients of the Inquiry

The inquiry has been directed to the following authors of the aforementioned paper, representing esteemed institutions:

• - Dr. Makoto Kimura (Nagoya University Grad School of Bioagricultural Sciences)
• - Dr. Tomoya Yoshinari (National Institute of Health Sciences)
• - Dr. Shohei Sakuta (Teikyō University Faculty of Science and Engineering)
• - Dr. Haruhisa Suga (Gifu University Carbohydrate Life Science Center)
• - Dr. Tomoki Fukuyama (Azabu University Faculty of Veterinary Medicine)
• - Dr. Yoshiko Konishi (Tokyo University of Agriculture)

Additionally, the Mycotoxins Society is also a recipient of this inquiry.

Clarification on Intent

It is crucial to clarify that the inquiry does not imply any predetermined misconduct by the authors. Rather, it serves the purpose of verifying the scientific basis concerning the claims made in the published study and the subsequent relations to the documents from the Ministry of Health. Furthermore, the Ministry's response of