
Monosodium glutamate (MSG) is commonly associated with Chinese cuisine, but it is also used in many other food products and even some vaccines. MSG has been linked to adverse effects such as brain neuron injury and digestive blockages. As a result, some people may be hesitant to receive vaccinations that contain MSG, especially if they have a history of MSG sensitivity. However, it is important to note that not all vaccines contain MSG, and individuals can make informed decisions by evaluating the ingredients and potential side effects of any vaccine they consider. In the context of venues like Madison Square Garden (MSG), proof of vaccination has been a requirement for entry to certain events, sparking debates about discrimination and individual freedom.
| Characteristics | Values |
|---|---|
| Do you need to be vaccinated to enter MSG? | Yes, proof of vaccination is required for entry to MSG. |
| Do the rules apply to children? | Yes, children ages 5-11 must have proof of at least one vaccine dose. Children under 5 must be masked if unvaccinated. |
| Are there different rules for vaccinated and unvaccinated guests? | Yes, vaccinated guests are not required to wear masks. Unvaccinated guests must wear masks unless actively eating or drinking. |
| Are there seating arrangements for unvaccinated guests? | Yes, there is a separate section for unvaccinated guests to maintain social distancing. |
| What type of proof of vaccination is accepted? | Documentation from a healthcare provider, physical copy, or a digital pass on a smartphone is accepted. |
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What You'll Learn

Monosodium Glutamate (MSG) is used as a stabiliser in some vaccines
Monosodium Glutamate (MSG) is a sodium salt of glutamic acid, a common amino acid. Glutamic acid is naturally present in the human body and occurs naturally in many foods such as tomatoes and cheese. MSG is commonly used as a flavor enhancer in cooking, particularly to intensify the umami flavor in food.
MSG is also used as a stabilizer in some vaccines. While the U.S. Food and Drug Administration (FDA) has labeled MSG as "Generally Recognized as Safe" (GRAS), there have been reports of short-term reactions to MSG, including numbness, headaches, fatigue, disorientation, and heart palpitations. These reactions are more likely to occur in people with low tolerance to MSG.
It is important to note that the long-term cumulative effects of injecting MSG into the body through vaccines are not yet known. MSG is an excitotoxin that can cause neurons to die, and there have been studies suggesting a link between MSG and adverse health effects. As a result, some vaccines that contain MSG carry a warning against their use for individuals with hypersensitivity to MSG.
To make informed decisions regarding vaccination, it is essential to evaluate the ingredients and their potential short-term and long-term effects on the human body.
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The MMRII vaccine does not contain MSG but does contain gelatin
Monosodium glutamate (MSG) is a common ingredient in many food products, especially in Chinese cuisine. It is also used as a preservative and stabiliser in some vaccines, including the Rotavirus vaccine. The MMR vaccine, specifically the M-M-R®II (Measles, Mumps, and Rubella Virus Vaccine Live), does not contain MSG. However, it does contain gelatin, which can cause hypersensitivity in some individuals.
The MMR vaccine has been used by healthcare providers for decades and is indicated for active immunisation to prevent measles, mumps, and rubella in individuals aged 12 months or older. The first dose is typically administered at 12 to 15 months, and the second dose is given before starting elementary school, usually around 4 to 6 years of age.
The MMR vaccine is contraindicated in certain individuals, including those with a history of hypersensitivity to any of its components, including gelatin. It is also not recommended for individuals who have experienced anaphylaxis to neomycin or those who are immunodeficient or immunosuppressed due to disease or medical therapy.
While MSG is generally considered safe, it has gained a negative reputation due to anecdotal reports of adverse reactions such as nausea, headaches, flushing, and sweating. However, scientific research has not supported these concerns, and decades of studies have not found MSG to be harmful. Nonetheless, a small minority of people may experience short-term reactions to MSG, and it is important to evaluate the ingredients of vaccines and their potential short and long-term effects.
It is worth noting that the amount of gelatin in the MMR vaccine is relatively high compared to other vaccines, with 14.5 mg per dose. This information is essential for individuals with a history of gelatin allergies, who may need to seek alternatives or exemptions.
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The ProQuad vaccine contains MSG
Monosodium glutamate (MSG) is a common ingredient in many processed foods, including soups, crackers, and meats, where it is used as a flavor enhancer. However, MSG is also present in some vaccines, including the ProQuad vaccine.
ProQuad, manufactured by Merck, is a combination measles-mumps-rubella-varicella (MMRV) live virus vaccine. It is licensed and recommended for individuals aged 12 months to 12 years. The vaccine contains a sterile lyophilized preparation of the components of M-M-R II (Measles, Mumps, and Rubella Virus Vaccine Live) and Varicella Virus Vaccine Live (Oka/Merck).
Each dose of ProQuad contains several ingredients, including sucrose, hydrolyzed gelatin, sorbitol, MSG, sodium phosphate, human albumin, sodium bicarbonate, potassium phosphate and chloride, neomycin, bovine calf serum, chick embryo cell culture, WI-38 human diploid lung fibroblasts, and MRC-5 cells. The growth medium for measles and mumps in the vaccine is a buffered salt solution containing vitamins and amino acids, supplemented with fetal bovine serum containing sucrose, phosphate, glutamate, recombinant human albumin, and neomycin.
The presence of MSG in vaccines has been a topic of discussion and concern for some. Studies have shown that MSG can have negative effects on brain neurons. Additionally, individuals with MSG sensitivity may experience MSG-type reactions to certain vaccines that contain phosphates. It is important for individuals to have access to information about vaccine ingredients to make informed decisions regarding vaccination for themselves or their children.
It is worth noting that the MMRII vaccine, which is similar to ProQuad but does not contain the varicella component, does not list MSG as an ingredient. However, it is always advisable to refer to the official product information and consult with healthcare professionals for personalized advice and recommendations regarding vaccinations.
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Some people are hypersensitive to MSG and should not receive the ProQuad vaccine
Monosodium glutamate (MSG) is a common ingredient in many processed foods and is also used as a stabiliser in some vaccines. Studies have shown that MSG can have adverse effects on the human body, including the ability to injure brain neurons.
The ProQuad vaccine is indicated for active immunization for the prevention of measles, mumps, rubella, and varicella (chickenpox) in children aged 12 months through 12 years. It contains weakened forms of the viruses that cause these illnesses, triggering an immune response to protect the recipient from future infection.
While the ProQuad vaccine has been authorised for use in the EU and is considered safe for most individuals, it is contraindicated in patients with a history of hypersensitivity to any component of the vaccine, including gelatin or neomycin. This means that individuals who have previously exhibited hypersensitivity to MSG, and therefore potentially to gelatin, should not receive the ProQuad vaccine.
It is important to note that most reactions to processed free glutamic acid (MSG) are not IgE-mediated and are instead described as a sensitivity to a toxic substance. However, due to the potential for adverse reactions, individuals with a known hypersensitivity to MSG should consult with a healthcare professional before receiving any vaccine, including ProQuad, to ensure their safety.
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MSG is found in almost all processed foods
Monosodium glutamate (MSG) is a flavour enhancer that is commonly associated with Chinese cuisine. However, it is also added to many processed and packaged foods. These include canned vegetables, soups, deli meats, frozen pizzas, instant noodles, and condiments like salad dressings, mayonnaise, ketchup, and barbecue sauce.
MSG is used to enhance the taste of these products and, in the case of meat products, to reduce the sodium content without changing the flavour. It is made from sodium and L-glutamic acid, a non-essential amino acid that occurs naturally in umami-rich foods like tomatoes, anchovies, mushrooms, and Parmesan cheese.
While the FDA has deemed MSG safe for consumption and recognised as a food additive, some people may experience sensitivity or adverse reactions to it. Studies have shown that large doses of MSG consumed without food can cause mild and short-lived negative effects. Additionally, MSG is often found in highly processed convenience foods that contain high amounts of sodium, fat, and other refined ingredients that are not considered healthy.
As a result, it is generally recommended to limit the consumption of ultra-processed foods containing MSG and to consider making these foods at home or seeking healthier alternatives. Checking ingredient labels is important for those wishing to avoid MSG or reduce their sodium intake, as MSG must be labelled as monosodium glutamate when used as a food ingredient.
It is worth noting that MSG is also used in vaccines, and individuals with hypersensitivity to MSG should be cautious and evaluate the ingredients of any vaccine they are considering.
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Frequently asked questions
Yes, Madison Square Garden (MSG) has implemented a policy that only fully vaccinated individuals are allowed inside the arena.
You can use the NYCcovidsafe app or take a picture of your vaccination card and driver's license.
No, all individuals attending events at MSG must be fully vaccinated, unless there is a specific medical exemption.
The ProQuad vaccine, which is a combination measles, mumps, rubella, and varicella (MMRV) live virus vaccine, contains MSG.
Yes, there are other vaccines that do not contain MSG, such as MMRII and PRIORIX, which are combination measles, mumps, and rubella (MMR) live virus vaccines.





































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