1. Monosodium Glutamate (MSG)
Monosodium glutamate, or MSG, is a common food additive used to intensify and enhance the flavor of savory dishes.
It’s found in a variety of processed foods like frozen dinners, salty snacks and canned soups. It’s also often added to foods at restaurants and fast food places.
MSG has been a subject of heated controversy since a 1969 study of mice found that large amounts caused harmful neurological effects and impaired growth and development.
However, this additive is likely to have little to no effect on human brain health as it’s unable to cross the blood-brain barrier.
MSG consumption has also been associated with weight gain and metabolic syndrome in some observational studies, although other research has found no association.
That being said, some people do have a sensitivity to MSG and may experience symptoms like headaches, sweating and numbness after eating a large amount.
In one study, 61 people who reported being MSG-sensitive were given either 5 grams of MSG or a placebo.
Interestingly, 36% experienced an adverse reaction to MSG while only 25% reported a reaction to the placebo, so MSG sensitivity may be a legitimate concern for some people.
If you experience any negative side effects after consuming MSG, it’s best to keep it out of your diet.
Otherwise, if you’re able to tolerate MSG, it can be safely consumed in moderation without the risk of adverse side effects.
SUMMARYMSG is used to enhance the flavor of many processed foods. Some people may have a sensitivity to MSG, but it’s safe for most people when used in moderation.
2. Artificial Food Coloring
Artificial food coloring is used to brighten and improve the appearance of everything from candies to condiments.
In recent years, though, there have been many concerns about potential health effects. Specific food dyes like Blue 1, Red 40, Yellow 5 and Yellow 6 have been associated with allergic reactions in some people.
Additionally, one review reported that artificial food coloring may promote hyperactivity in children, although another study showed that some children may be more sensitive than others.
Concerns have also been raised about the potential cancer-causing effects of certain food dyes.
Red 3, also known as erythrosine, has been shown to increase the risk of thyroid tumors in some animal studies, causing it to be replaced by Red 40 in most foods.
However, multiple animal studies have found that other food dyes are not associated with any cancer-causing effects.
Still, more research is needed to evaluate the safety and potential health effects of artificial food coloring for humans.
Regardless, food dyes are found primarily in processed foods, which should be limited in a healthy diet. Always opt for whole foods, which are higher in important nutrients and naturally free of artificial food coloring.
SUMMARYArtificial food coloring may promote hyperactivity in sensitive children and can cause allergic reactions. Red 3 has also been shown to increase the risk of thyroid tumors in animal studies.