International Foundation for Functional Gastrointestinal Disorders (IFFGD)

IFFGD is a Public Charity designated under the U.S. IRS code 501(c)(3). We are a registered nonprofit education and research organization. Our mission is to inform, assist and support people affected by gastrointestinal (GI) disorders.

PO Box 170864 
Milwaukee, WI 53217 
Toll-free: 888-964-2001 
Telephone: 414-964-1799 
Fax: 414-964-7176 
E-mail: [email protected]