1 It's also one of the worst food additives on the market. 2  MSG is an excitotoxin, which means it overexcites your cells to the point of damage or death, causing brain damage to varying degrees, and potentially even triggering or worsening learning disabilities. Common adverse effects linked to regular consumption of MSG, include: obesity, eye damage, headaches, fatigue and disorientation, depression, rapid heartbeat, tingling and numbness. 2  Early studies suggested 25 percent to 30 percent of the US population was intolerant of MSG at levels then found in food.
Sliced deli meats and cheeses on a board. Photo Credit Lawkeeper/iStock/Getty Images. 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.f you follow a gluten-free diet you'll need to avoid autolyzed yeast extract because it's a source of hidden gluten, according to Colorado State University. Another possible concern about consuming autolyzed yeast extract is that it naturally contains monosodium glutamate.
Whether it is living (active) or dead (inactive), yeast is used in different ways. Different processes obtain fresh or dry baker's yeast or brewer's or flaked yeast. 1  Baker's yeast is alive and active!2  It is found in different forms to satisfy bakers' requirements: fresh, but also dry or liquid.3  In the case of dry yeast, dehydration is never pushed below 40Â°C in order to maintain its fermenting power!hether it is living (active) or dead (inactive), yeast is used in different ways. Different processes obtain fresh or dry baker's yeast or brewer's or flaked yeast. 1  Baker's yeast is alive and active!