Global health authorities say MSG, commonly known as tasting powder, is safe when consumed in normal dietary amounts and can even help reduce sodium intake
Monosodium Glutamate (MSG), popularly known as tasting powder in India, continues to be surrounded by misconceptions despite decades of scientific research. Leading global health organisations, including the WHO, FAO, FDA and EFSA, recognise MSG as safe for human consumption in normal dietary quantities. Experts say the flavour enhancer does not cause serious health problems in the general population and may even help reduce overall sodium intake when used appropriately.
NewsFlash Desk: Monosodium Glutamate (MSG), widely known as tasting powder in India, has long been the subject of health debates. However, scientific evidence accumulated over several decades indicates that MSG is generally safe for consumption when used in normal dietary quantities.
Major international food safety and health organisations, including the World Health Organisation (WHO), Food and Agriculture Organisation (FAO), U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA), have recognised MSG as safe when consumed within normal dietary limits.
Despite persistent myths surrounding the flavour enhancer, experts say there is no convincing scientific evidence linking normal dietary intake of MSG to serious health conditions.
"Global food safety authorities recognise Monosodium Glutamate (MSG) as safe when consumed in normal dietary amounts."
MSG Safety Explained Through Scientific Evidence
MSG is the sodium salt of L-glutamic acid, a naturally occurring amino acid found in a wide variety of foods.
Naturally occurring glutamate is present in foods such as:
- Tomatoes
- Mushrooms
- Parmesan cheese
- Soy sauce
- Seaweed
- Meat
- Fish
Commercial MSG is manufactured through the fermentation of carbohydrate sources such as sugarcane, sugar beet and molasses, a process similar to the production of yogurt, vinegar and several fermented food products.
Scientists explain that the glutamate naturally present in food is chemically identical to the glutamate found in commercially produced MSG.
Tasting Powder and MSG Are the Same Product?
Nutrition experts clarify that tasting powder is simply the common commercial or household name for Monosodium Glutamate (MSG) in India and many Asian countries.
There is no chemical difference between tasting powder and MSG. Both refer to the same food additive that enhances the savoury taste known as umami, often described as a rich, meaty or savoury flavour.
MSG is widely used in:
- Chinese and Asian cuisine
- Instant noodles
- Soups
- Packaged snacks
- Frozen foods
- Restaurant gravies
- Processed meat products
Its ability to improve flavour allows manufacturers and home cooks to reduce the amount of ordinary table salt used in food.
"MSG enhances the natural umami flavour of food and can help reduce sodium intake when used as a partial substitute for table salt."
Health Experts Reject Long-Standing MSG Myths
For decades, MSG developed a negative public image following a 1968 letter published in the New England Journal of Medicine, in which a physician described symptoms experienced after eating Chinese food.
The report eventually led to the popular term "Chinese Restaurant Syndrome."
However, subsequent scientific investigations identified significant shortcomings in many early studies, including:
- Extremely high experimental doses
- Administration through injections rather than food consumption
- Small sample sizes
- Weak research methodology
Modern scientific reviews have found no consistent evidence linking normal dietary consumption of MSG with serious health problems.
As a result, international regulatory agencies continue to classify MSG as safe for the general population.
Can MSG Cause Side Effects?
Although MSG is considered safe for most individuals, researchers acknowledge that a small proportion of people may experience temporary sensitivity after consuming unusually large quantities of MSG, particularly without food.
Reported symptoms may include:
- Headache
- Flushing
- Sweating
- Tingling sensations
- Dizziness
- Muscle tightness
Research suggests that these symptoms generally occur after consuming 3 grams or more of MSG in a single sitting, considerably more than what is typically used in everyday cooking.
Health experts note that such reactions are uncommon and usually mild and temporary.
Does MSG Cause Obesity or Weight Gain?
Current scientific evidence does not establish that normal dietary consumption of MSG causes obesity.
While certain animal studies suggested possible associations, many involved unrealistic doses or methods of administration that do not reflect typical human dietary intake.
Human studies have produced inconsistent findings, and researchers say there is no convincing evidence that normal consumption of MSG leads to weight gain or metabolic disorders.
Does MSG Harm the Brain?
Another common misconception is that MSG damages brain cells.
Scientists explain that although glutamate functions as an important neurotransmitter, dietary glutamate from food is largely metabolised within the digestive system.
Very little dietary glutamate crosses the blood-brain barrier, making it unlikely to alter brain chemistry under normal dietary conditions.
Current scientific literature does not support claims that normal dietary MSG consumption causes brain damage.
"There is no convincing scientific evidence that normal dietary intake of MSG causes brain toxicity or neurological damage."
MSG May Help Reduce Overall Salt Consumption
Nutrition researchers point out that MSG contains approximately two-thirds less sodium than ordinary table salt.
Because it intensifies savoury flavours, replacing a portion of table salt with MSG may reduce overall sodium intake without significantly affecting taste.
Several studies suggest this strategy may help consumers lower dietary sodium while maintaining food palatability.
Health Experts Recommend Moderation and a Balanced Diet
Health professionals recommend using MSG in moderation as part of a balanced diet.
Consumers are advised to:
- Use MSG sparingly as a flavour enhancer.
- Focus on fresh and minimally processed foods.
- Consult a healthcare professional if they consistently experience symptoms after consuming foods containing MSG.
- Pay greater attention to the overall nutritional quality of processed foods, which may contain high levels of fat, sugar or sodium irrespective of MSG content.
Experts emphasise that concerns about processed foods should focus on their overall nutritional profile rather than MSG alone.
Scientific Consensus Supports MSG Safety
Based on decades of research, the prevailing scientific consensus remains that MSG is safe for the overwhelming majority of people when consumed in normal dietary quantities.
There is no credible scientific evidence showing that MSG causes cancer, brain damage or other serious illnesses in healthy individuals.
For most consumers, experts say the overall nutritional quality of the food is far more important than the presence of MSG itself.
