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1. Gas and bloating
A number of people report digestive problems after consuming MSG, such as bloating, heaviness, or intestinal gas.
This may relate to how the additive is metabolized and its possible impact on gut balance.
2. Headaches and fatigue
Another widely reported issue is known as “Chinese restaurant syndrome,” involving symptoms like:
- Headaches
- Chest pressure
- Heart palpitations
- Dizziness
- Sudden, lingering tiredness
While not everyone experiences these reactions, those who are particularly sensitive may feel the effects even hours later.
3. Potential links to sleep and focus problems
Some studies suggest that too much MSG could influence brain activity by affecting neurotransmitters, which might lead to issues with sleep, mood, or concentration.
How to spot MSG in your food
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