Glutamate Fact: Arrhythmias

Most cardiologists are never taught that glutamate receptors exist throughout the heart’s electrical conduction system—and even within the heart muscle itself. Yet this fact has enormous implications for the millions of people living with life‑threatening arrhythmias.

Despite this, patients are rarely warned about two major dietary sources of cardiac irritability:

• MSG
• Aspartame

Both dramatically raise glutamate activity in the body, and both can overstimulate the heart’s glutamate receptors. For someone already prone to arrhythmias, this can be a dangerous—and completely avoidable—trigger.

With more than a million Americans struggling with serious rhythm disorders, it’s astonishing that so few are ever advised to reduce or eliminate these additives.