• Adverse reactions to MSG Monosodium Glutamate (E621)

    Ingestion of glutamic acid (MSG) is known to produce a variety of adverse reactions in some people. These reactions, although seemingly dissimilar, are no more diverse than reactions found as side effects of certain neurological drugs. Why some people experience reactions (allergy or intolerance) and others do not is unknown.

    MSG (E 621) Monosodium glutamate, is a flavour enhancer often added to ready meals. MSG is a well-known excito-toxin that can cause neurological damage.

    Possible reactions include:

    Cardiac: Arrhythmia, Atrial fibrillation, Tachycardia, Rapid heartbeat, Palpitations, Slow heartbeat, Angina, Extreme rise or drop in blood pressure.

    Circulatory: Swelling.

    Gastrointestinal: Diarrhoea, Nausea/vomiting, Stomach cramps, Rectal bleeding, Bloating.

    Muscular: Flu-like achiness, Joint pain, Stiffness.

    Neurological: Depression, Mood swings, Rage reactions, Migraine headache, Dizziness, Light-headedness, Loss of balance, Disorientation, Mental confusion, Anxiety, Panic attacks, Hyperactivity, Behavioural problems in children, Attention deficit disorders, Lethargy, Sleepiness, Insomnia, Numbness or paralysis, Seizures, Sciatica, Slurred speech, Chills and shakes, Shuddering.

    Visual: Blurred vision, Difficulty focusing, Pressure around eyes.

    Respiratory: Asthma, Shortness of breath, Chest pain, Tightness in the chest, Runny nose, Sneezing.

    Urological / Genital: Bladder pain (with frequency), Swelling of the prostate, Swelling of the vagina, Vaginal spotting, Frequent urination, Nocturia.

    Skin: Hives (may be both ..internal and external), Rash, Mouth lesions, Temporary tightness or partial paralysis, numbness or tingling of the skin, Flushing, Extreme dryness of the mouth, Face swelling, Tongue swelling, Bags under eyes.

    MSG is commonly found in:

    Occurs naturally in tomatoes, parmesan cheese, walnuts.

    Yeast extract & foods. Seasonings: low sodium salt substitutes, natural chicken, beef, pork flavouring, stock, bouillon and broth, malt extract or flavouring, soy sauce. Crisps and other potato snacks. Some Asian takeaway, dressings and many frozen foods.


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