Contact Us

Contact the SIDI Work Group at, or reach out to one of the trade association representatives listed below.

Council for Responsible Nutrition

Duffy MacKay, N.D.
Chair, Executive Committee, SIDI Work Group

Senior Vice President, Scientific & Regulatory Affairs, CRN

Consumer Healthcare Products Association

Marcia D. Howard, Ph.D.
Senior Director, Regulatory & Scientific Affairs


United Natural Products Alliance

Loren D. Israelson
Executive Director


DISCLAIMER: These voluntary Guidelines are for information purposes only and intended to assist users with compliance with the cGMPs for Dietary Supplements, 21 C.F.R. § 111. The Guidelines should not be utilized as a substitute for compliance with all applicable laws and regulations. The Authors make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, or suitability of the Guidelines for any purpose. By use of these resources, the user agrees not to hold the authors liable or responsible for the user’s compliance with all applicable laws and regulations. CLICK HERE TO READ FULL DISCLAIMER.

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