Supplements Guide: Side Effects & Best Multivitamins

Vitamins and supplements like melatonin and fish oil offer health benefits but can cause side effects if misused. Learn about the impact of saw palmetto on blood pressure and find the best multivitamins for young women and adults over 50.

What Is Autolyzed Yeast Extract?

Published Jul,08 2011 | By Heidi Wiesenfelder

Autolyzed yeast extract is a substance that results when yeast is broken down into its constituent components. It naturally contains free glutamic acid, or monosodium glutamate, and is often used as a less expensive substitute for MSG.

Heidi Wiesenfelder received her Ph.D. from Vanderbilt University, and since 1990 has published research papers in the Journal of Neuroscience, Visual Neuroscience, and Visual Perception. She is a certified Six Sigma Black Belt (process improvement expert) and a consultant to small businesses and nonprofits. She has held leadership roles in animal welfare organizations and educates people about animal health and nutrition.