Is Gochujang Actually Healthy? Sodium, Sugar, and the Ferment, Checked

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We did not interview anyone for this article. We read three nutrition labels, two clinical trials and a genetic re-analysis of one of them, the U.S. sodium guidance, and the reference values for the condiments gochujang usually sits next to. That is a narrower base than we would like, and we say so where it matters. What follows is what those documents actually support — and what they do not.

Gochujang is having its American moment — on salmon, on noodles, in the sauce aisle of supermarkets that did not stock it five years ago — and it arrives with two reputations at once: “fermented superfood” on one side, “a tablespoon of salt” on the other. This is an attempt to read what is known. It will not tell you gochujang prevents or treats anything, because nothing in the evidence supports that sentence. It will tell you what is on the label, what the handful of human studies found and how big they were, and what a reasonable amount looks like.

What the label says

Three tubs cover most of what an American shopper will meet: CJ Haechandle, Chung Jung One’s Sunchang, and Mother-in-Law’s, a U.S. brand. Per tablespoon, as listed on their labels (via the USDA Branded Foods database and the brands’ retail nutrition panels as reproduced on nutrition-tracking sites — we did not photograph the tubs ourselves):

Brand (1 Tbsp)	Serving	Sodium	Sugars	Calories
CJ Haechandle (medium hot)	20 g	540 mg	5 g	40
Chung Jung One Sunchang	20 g	480 mg	3 g	40
Mother-in-Law’s Original	22 g	400 mg	4 g	45

For comparison, U.S. Department of Agriculture reference values put a tablespoon of regular soy sauce at about 880 mg of sodium, a tablespoon of teriyaki sauce at about 690 mg, and a tablespoon of ketchup at about 170 mg. The Dietary Guidelines for Americans and the FDA’s Daily Value both set the ceiling at 2,300 mg a day. One tablespoon of gochujang, then, is a real but not extraordinary contribution — roughly a fifth of the day’s limit, less than the soy sauce you might pour next to it. The noodles or rice you put it on, and what else is in the bowl, usually matter more.

The sugar is worth a sentence. Traditional gochujang gets its sweetness from glutinous rice broken down during fermentation. Many commercial versions add sweetener on top of that, and the ingredient list tells you which: on the Sunchang tub we checked, the first ingredient listed is corn syrup, ahead of rice flour and salt, with glutinous rice further down. That is the single biggest difference between brands, and it is on the back of the tub, not the front.

What the trials found

There are, as far as we can find, two randomized controlled trials of gochujang in people. Both are from Korea, both are small, and both used capsules rather than food.

The first, led by Youn-Soo Cha at Chonbuk National University and published in Nutrition & Metabolism in 2013, enrolled 60 overweight adults and followed 53 of them for 12 weeks. Half took 32 g of freeze-dried gochujang a day in pills — the equivalent of roughly 39 g of paste, or two heaped tablespoons — and half took a placebo. Visceral fat, measured by CT scan, fell by 4.8 cm² in the gochujang group and rose slightly in the placebo group; triglycerides dropped by about 18 mg/dL. Body weight did not change. The authors themselves noted the small sample and the lack of strict control over what participants otherwise ate and did. The study was funded by Korea’s Ministry for Food, Agriculture, Forestry and Fisheries and by the university.

A 2017 paper in the Journal of Medicinal Food, from the same research group, reported a 12-week trial of the same design — 60 people, 32 g a day in capsules — sorted by a variant in the PPARγ2 gene. Across the whole group it found no differences in body composition or insulin resistance between gochujang and placebo — only the drop in triglycerides — and found that even that effect was weaker in people carrying the variant. “Works for some people, a little, on one blood marker” is the honest ceiling of that result.

The second trial, published in Nutrients in 2022 by A Lum Han and colleagues, compared a traditional, slow-fermented gochujang with a commercial product made with Aspergillus oryzae: 62 people enrolled, 54 completed, six weeks, about 19 g of gochujang powder a day in pills. Waist circumference fell in the high-dose traditional group and the commercial group; visceral fat fell significantly only in the high-dose traditional group; blood lipids improved in the traditional groups. The same ministry funded it, along with the Korea Agro-Fisheries and Food Trade Corporation, whose job is to promote Korean food exports.

None of that makes the studies wrong. It makes them what they are: short, small, industry-adjacent trials of a supplement dose that nobody eats on noodles. Cha and colleagues put the gap plainly in their own discussion, cautioning that the sample was small and that participants’ diet and activity were not strictly controlled. We would add the obvious: 32 g of freeze-dried paste in capsules and one tablespoon stirred into a sauce are not the same exposure, and no trial has tested the second.

Fermented, but is it alive?

The word “fermented” is doing a lot of work in gochujang marketing. It is true: the paste is made by fermentation, and a traditional jar holds live Bacillus, lactic acid bacteria, and yeasts. But commercial producers typically heat-treat the paste to keep it shelf-stable and to stop it from swelling in transit; the Sunchang ingredient list we read includes distilled spirits, a preservative, and none of the three labels makes a live-culture claim. Heat kills the microbes; what survives is what they made — amino acids, organic acids, flavor — not the organisms themselves. If you want live cultures on the plate, the kimchi next to the bowl is where they are. The capsaicin, isoflavone, and “fermentation metabolite” studies that circulate online are almost entirely cell and animal work, and this article does not lean on them.

What we don’t know

Nobody has studied gochujang at the amounts people actually eat, over the years people actually eat it, outside Korea, in a Western diet. Nobody has tested whether any benefit survives the sodium that comes with it. We could not find a single trial in people with high blood pressure, who are the ones most likely to be asking. And we could not find a trial that compared eating the paste with taking it as a pill, which is the comparison every reader of this article actually needs.

Verdict

A condiment, not a supplement. One to two tablespoons a day is a reasonable amount for most healthy adults — enjoyable, moderately salty, and not a reason to expect anything from it beyond dinner. If you are watching sodium, treat it like soy sauce: measure it, and know that lower-sodium versions exist. If you are eating it because it is fermented, eat kimchi too; that is where the live part is. And if someone tells you gochujang burns fat, ask how many people were in the study and what they were swallowing. The answer is 53, and pills.

For what it is worth, writing this did not change what is in my refrigerator. The tub is still Chung Jung One’s Sunchang from H-Mart, and it will be next month too. What I had already noticed at the table — that the export versions taste a shade sweeter and looser than the paste I grew up with in Korea — the ingredient list explains: corn syrup, first line. I would rather know that than not.

This article is for general information and is not medical advice. If you manage high blood pressure, kidney disease, or a sodium-restricted diet, talk to your clinician about condiments like this one. Read our medical disclaimer and editorial standards.

Gochujang is the ingredient we are spending this week on. Where it comes from: Gochujang: How a Chili from the Americas Became Korea’s Red Heart. What we cooked with it: 15-Minute Gochujang Honey Noodles, the Gochujang Salmon Rice Bowl, and Crispy Gochujang Roasted Chickpeas. Everything we have written about the paste lives on the gochujang ingredient page.

Sources

1. Cha, Y.-S. et al. “Kochujang, fermented soybean-based red pepper paste, decreases visceral fat and improves blood lipid profiles in overweight adults: a randomized clinical trial.” Nutrition & Metabolism 10:24 (2013). doi:10.1186/1743-7075-10-24
2. Lee, Y. et al. “PPARγ2 C1431T polymorphism interacts with the antiobesogenic effects of Kochujang in overweight/obese subjects: a 12-week, double-blind randomized clinical trial.” Journal of Medicinal Food 20(6), 2017. doi:10.1089/jmf.2016.3911
3. Han, A.L. et al. “Anti-obesity effects of traditional and commercial Kochujang in overweight and obese adults: a randomized controlled trial.” Nutrients 14(14):2783 (2022). doi:10.3390/nu14142783
4. Nutrition labels: Chung Jung One Sunchang Gochujang (USDA FoodData Central, Branded Foods, FDC ID 551191); CJ Haechandle Gochujang Hot Pepper Paste, Medium Hot, and Mother-in-Law’s Gochujang Original, as listed on retail nutrition panels reproduced by nutrition-tracking databases. Checked September 2026.
5. USDA FoodData Central, SR Legacy: Soy sauce made from soy and wheat (shoyu), 1 Tbsp; Sauce, teriyaki, ready-to-serve, 1 Tbsp; Catsup, 1 Tbsp.
6. U.S. Department of Agriculture and U.S. Department of Health and Human Services, Dietary Guidelines for Americans, 2020–2025; U.S. Food and Drug Administration, Daily Value for sodium (2,300 mg). dietaryguidelines.gov