E620 L-glutamic acid

What is L-glutamic acid (E620)?

L-glutamic acid is a naturally occurring amino acid that serves as a building block for proteins. It is often used as a flavor enhancer in the food industry, where it contributes to the savory taste known as umami. Found in various foods, such as meat, fish, dairy products, and some vegetables, L-glutamic acid is produced through fermentation and is considered safe for consumption. It can also be synthesized chemically for use in food processing.

Why do I have an intolerance?

Some individuals may develop an intolerance to L-glutamic acid due to its role in stimulating neurotransmitters in the brain. This intolerance can lead to symptoms like headaches, nausea, or digestive upset after consuming foods high in glutamate. Those with sensitivities to glutamate might experience exacerbated symptoms when consuming processed foods or food additives containing concentrated amounts of this amino acid, such as MSG.

What can I do about it?

To alleviate symptoms of intolerance to L-glutamic acid, it is advisable to limit the intake of processed foods and flavor enhancers that contain high levels of glutamate. Cooking with whole, unprocessed ingredients can help maintain a diet that is free from added glutamic acid. Keeping a food diary to track symptoms and identifying specific food triggers can also be beneficial. In addition, seeking out naturally low-glutamate food options, like fruits and vegetables, can support a balanced diet while minimizing exposure to this amino acid.