People may experience symptoms within two hours after eating foods that contain MSG. Symptoms can last a few hours to a couple of days. Common symptoms include: headache.
What are the signs and symptoms of MSG intolerance?
These reactions — known as MSG symptom complex — include:
- Headache.
- Flushing.
- Sweating.
- Facial pressure or tightness.
- Numbness, tingling or burning in the face, neck and other areas.
- Rapid, fluttering heartbeats (heart palpitations)
- Chest pain.
- Nausea.
Can MSG make you feel unwell?
Absolutely. Scientists have not been able to confirm MSG causes any of the reported “MSG allergy symptoms” (e.g., headache, nausea, etc). There is no limitation for use of MSG in foods because international scientific and regulatory bodies have failed again and again to identify any harm from consumption of MSG.