Books

The Enzyme Advantage for Women
Dr. Howard F. Loomis Jr.
ISBN: 978-0976912422
Publisher: 21st Century Publishing
Published: 2016

ENZYMES: The Key to Health, Volume I
Dr. Howard F. Loomis Jr.
ISBN: 978-0976912408
Publisher: 21st Century Publishing
Published: 2005, 1999

Enzyme Nutrition: The Food Enzyme Concept 
Edward Howell
ISBN: 978-0895292216
Publisher: Avery Publishing Group, Inc.
Published: November 1985
Food Enzymes for Health & Longevity 
Edward Howell
ISBN: 978-0941524285
Publisher: Lotus Press
Published: December 1998

You Take Too-Big-A-Bite! 
Louis De Palma
ISBN: 978-1419674044
Publisher: BookSurge
Published: 2007
The Enzyme Cure 
Lita Lee, Ph.D., Burton Goldberg, and Lisa Turner
ISBN: 978-1887299220
Publisher: Future Medicine Publishing, Inc.
Published: March 1998

The Complete Book of Enzyme Therapy 
Anthony J. Cichoke
ISBN: 978-0895298171
Publisher: Avery Publishing Group, Inc.
Published: April 1999