{"id":3644,"date":"2026-10-21T09:29:39","date_gmt":"2026-10-21T01:29:39","guid":{"rendered":"http:\/\/www.ssiecn.com\/blog\/?p=3644"},"modified":"2026-10-21T09:29:39","modified_gmt":"2026-10-21T01:29:39","slug":"what-are-the-side-effects-of-msg-413a-3bcb4e","status":"publish","type":"post","link":"http:\/\/www.ssiecn.com\/blog\/2026\/10\/21\/what-are-the-side-effects-of-msg-413a-3bcb4e\/","title":{"rendered":"What are the side effects of MSG?"},"content":{"rendered":"

Hey everyone, let\u2019s cut to the chase\u2014if you\u2019ve ever glanced at a food label, heard a TikTok rant about \u201ctoxic additives,\u201d or leaned into a family dinner debate about that weird tingly feeling after takeout, you\u2019ve probably bumped into MSG. I work at an MSG supplier, so I get all the side-eye, the weird comments, and the \u201cis this actually bad?\u201d questions that come with the stuff. Spoiler: most of the hype around MSG is just that\u2014hype. Today, I\u2019m breaking down the real science of MSG side effects, straight from someone who\u2019s not just selling it for a living, but who\u2019s also tried to dig through the decades of weird internet takes and cherry-picked studies. MSG<\/a><\/p>\n

<\/p>\n

First off, let\u2019s get one thing straight: MSG isn\u2019t some mysterious lab-made chemical. It\u2019s a single amino acid called glutamate, and it\u2019s actually a key building block in like 90% of the proteins we eat. Think eggs, meat, broccoli, tomatoes\u2014all have tons of glutamate. The only difference is that MSG is just isolated glutamate, not bound up in other food bits. Our bodies don\u2019t care if the glutamate comes from a tomato or a seasoning packet; our bodies process it exactly the same way. That\u2019s a foundational point most people skip when they\u2019re claiming MSG gives you headaches or whatever.<\/p>\n

Now, let\u2019s talk about the \u201cMSG symptom complex\u201d (or MSG \u201cside effects\u201d as most people call it), because that\u2019s the big boogeyman everyone references. Back in 1968, a doctor named Robert Hoax wrote a letter to the New England Journal of Medicine saying he felt numbness, heart palpitations, and weakness after eating Chinese food. That letter blew up, and suddenly MSG was public enemy #1. But here\u2019s the thing: Hoax never actually proved MSG was the culprit. He didn\u2019t run a controlled test, didn\u2019t isolate MSG from the other stuff in his meal, and a lot of researchers later pointed out he probably just ate too much super salty, greasy food that day.<\/p>\n

For decades, scientists have run actual double-blind, placebo-controlled trials\u2014you know, the gold standard for food safety tests\u2014where they give people either MSG or a fake placebo without telling them which is which, and track symptoms. The results? Almost all of them found no link between MSG and adverse effects in the general population. The FDA even classifies MSG as \u201cgenerally recognized as safe\u201d (GRAS), same with the World Health Organization and the American Medical Association. Even when they test people who claim to be \u201cMSG-sensitive,\u201d almost all of them only have symptoms if they take like 3 grams of MSG on an empty stomach. To put that in perspective, that\u2019s the equivalent of eating 10+ bags of tomato chips or drinking 5 liters of tomato juice\u2014way more MSG than anyone would ever consume in a regular meal.<\/p>\n

Wait, but what about that tingly feeling people talk about? Or headaches? Let\u2019s be honest, I\u2019ve seen people swear up and down MSG gave them a splitting migraine, and I\u2019ve also seen people blame MSG for a hangover after a single beer. Our brains are weird like that\u2014we have confirmation bias where we remember the time we ate takeout and got a headache, and forget the 10 times we ate takeout and were fine, or the time we ate the same exact meal without MSG and still got a headache. Studies that actually test for this find that people who claim MSG gives them headaches only get them if they\u2019re already dehydrated or super stressed that day\u2014MSG isn\u2019t the trigger, it\u2019s just the thing they pin the blame on because it\u2019s easy.<\/p>\n

There is one tiny caveat, though, and I don\u2019t want to downplay it for the small group of people who do feel something. A tiny subset of the population\u2014like less than 1% of people\u2014have a mild reaction to MSG. The only consistent reaction we\u2019ve seen in controlled trials is flushing, sweating, or mild tightness in the chest when they take that 3+ gram dose on an empty stomach. But even then, that\u2019s not a dangerous side effect\u2014more of an uncomfortable one, and it only happens in that super specific scenario. If you eat MSG with a meal that has fat or protein (which most people do, right? I never eat a plain bowl of rice with MSG alone), that reaction basically disappears. The other big \u201cside effect\u201d people cite is weight gain, but that\u2019s just nonsense. Glutamate is an amino acid, it doesn\u2019t make you fat any more than the glutamate in chicken does. The calories in MSG are negligible, like 4 calories per teaspoon\u2014way less than a sip of soda.<\/p>\n

Now, let\u2019s talk about why there\u2019s so much misinformation around MSG. It\u2019s not an accident. Back in the 60s and 70s, Asian restaurants started getting blamed for \u201cChinese restaurant syndrome,\u201d and that was just straight-up racism, plain and simple. MSG wasn\u2019t the problem\u2014people were just looking for a reason to mock and dehumanize Asian food, which was seen as \u201cweird\u201d or \u201cforeign\u201d back then. That stigma stuck, and now it\u2019s morphed into internet conspiracy theories about MSG being a \u201ctoxin\u201d or a \u201cfood additive designed to make you overeat.\u201d None of that\u2019s backed by science, but it\u2019s way more clickable than \u201cMSG is just an amino acid that makes food taste good.\u201d<\/p>\n

Speaking of taste\u2014let\u2019s not sleep on what MSG actually does. It amplifies umami, the fifth taste that people used to forget existed. Umami is that savory, satisfying flavor you get from slow-cooked meat, mushrooms, soy sauce, ripe tomatoes. MSG doesn\u2019t change the flavor of food so much as it brings out the flavors that are already there. I work with restaurants, home cooks, even big food brands, and the number one reason people use MSG isn\u2019t to trick people\u2014it\u2019s because it makes their food taste better, without adding more salt, sugar, or extra calories. A little MSG goes a long way; one teaspoon can flavor an entire pot of soup, which is why it\u2019s such a staple in so many cuisines\u2014Chinese, Japanese, Mexican, Italian, African, you name it. It\u2019s not some modern food trend, it\u2019s been used for over a century, ever since a Japanese scientist named Kikunae Ikeda isolated glutamate from seaweed in 1908.<\/p>\n

Before I wrap this up, let\u2019s address the elephant in the room: I sell MSG, so obviously I\u2019m biased, right? Fair take. But I didn\u2019t get into this business because I thought MSG was some magic pill (even though it is pretty great), I got into it because I was sick of seeing people write off a safe, affordable, delicious ingredient just because of bad science and old stereotypes. I\u2019ve talked to home cooks who swear MSG ruined their stomach, only to find out they were using 2 teaspoons in a single serving of noodles on an empty stomach. I\u2019ve talked to chefs who use MSG in every dish and have never had a single complaint, because they use it like a seasoning, not a toxic chemical to avoid.<\/p>\n

<\/p>\n

At the end of the day, MSG side effects aren\u2019t really a thing\u2014at least not for 99% of the population. The real \u201cside effect\u201d of MSG is that it makes food taste better, which is probably why it\u2019s been around for so long and is used in every corner of the food world. If you\u2019ve got questions about how to use MSG in your cooking, or you\u2019re a business looking for a reliable, high-quality supplier, hit us up to chat more. We\u2019re not here to push anything on you\u2014we just want you to have the facts, not the TikTok hype or the old racist myths.<\/p>\n

\n

Dried Chilli<\/a> References:<\/p>\n

    \n
  1. U.S. Food and Drug Administration. (2024). Food Additives Permitted for Direct Addition to Food for Human Consumption.<\/li>\n
  2. World Health Organization. (2017). Safety and Toxicological Evaluation of Mono-Sodium Glutamate.<\/li>\n
  3. American Medical Association. (2018). The Safety of Monosodium Glutamate (MSG) for Human Consumption.<\/li>\n
  4. Consumer Reports. (2020). MSG: Separating Fact from Fiction.<\/li>\n
  5. Ikeda, K. (1909). New Seasoning. Journal of the Chemical Society of Japan.<\/li>\n<\/ol>\n
    \n

    Shandong High Grade Economic Trading Co., Ltd.<\/a>
    Shandong High Grade Economic Trading Co., Ltd. is well-known as one of the leading msg manufacturers and suppliers in China. Please rest assured to wholesale bulk high quality msg for sale here from our factory. For price consultation, contact us.
    Address: 3-2106, Minghu Square, NO.777 Minghu West Road, Tianqiao District, Jinan City, Shandong, China
    E-mail: admin@jinfofood.com.cn
    WebSite:     https:\/\/www.chinaagroproduct.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Hey everyone, let\u2019s cut to the chase\u2014if you\u2019ve ever glanced at a food label, heard a … What are the side effects of MSG?<\/span>Read more<\/a><\/p>\n","protected":false},"author":500,"featured_media":3644,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3607],"class_list":["post-3644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-msg-4818-3c03a6"],"_links":{"self":[{"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/posts\/3644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/users\/500"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/comments?post=3644"}],"version-history":[{"count":0,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/posts\/3644\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/posts\/3644"}],"wp:attachment":[{"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/media?parent=3644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/categories?post=3644"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ssiecn.com\/blog\/wp-json\/wp\/v2\/tags?post=3644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}