No taste, but plenty of salt: the surprising truth about Pyongyang naengmyeon

As summer arrives, more people are reaching for a cold bowl of Pyongyang naengmyeon — the chilled buckwheat noodle dish long famous for its notoriously bland taste, sometimes jokingly compared to "dishwater." What many diners do not realize, however, is that the dish is actually loaded with sodium.

According to a nutritional data report on restaurant foods published by the Ministry of Food and Drug Safety, a single serving of Pyongyang naengmyeon sold at restaurants contains between 1,800 and 2,800 milligrams of sodium — well above the WHO's recommended daily limit of 2,000 milligrams for adults. That range exceeds even ramyun (1,500–2,000 mg) and rivals spicy beef soup and kimchi stew (2,000–3,000 mg).

The broth requires a surprisingly large amount of salt along with flavor enhancers such as MSG and stock seasoning. Adding vinegar or mustard at the table pushes sodium intake even higher.

The reason the dish still tastes bland despite all that sodium comes down to water volume. Even with a comparable sodium content, Pyongyang naengmyeon uses far more liquid than kimchi stew or spicy beef soup. The dish contains a large amount of salt in absolute terms, but its salinity — the concentration of salt — is relatively low, at roughly 0.5 to 0.8 percent, compared with 0.9 to 1.2 percent for ramyun and 1.0 to 1.3 percent for kimchi stew. The result is a noticeably milder saltiness with each spoonful.

Serving temperature also plays a role. Cold food dulls the taste buds, making saltiness harder to detect. The rich broth also contains umami compounds — glutamic acid and inosinic acid — that soften the perception of salt and reduce its sharpness.

None of this changes the underlying fact that Pyongyang naengmyeon carries a high sodium load. Excessive sodium intake raises the risk of cardiovascular disease: the body retains fluid to dilute sodium in the blood, increasing blood volume and driving up blood pressure. Sustained high blood pressure can damage artery walls and lead to atherosclerosis, which in turn affects heart and cerebrovascular health. Heavy sodium consumption also strains the kidneys and, over time, may raise the risk of stomach cancer and osteoporosis.

Enjoying the dish more healthfully is straightforward: drink less of the broth. Most of the sodium in Pyongyang naengmyeon is concentrated in the soup, so simply leaving some behind makes a meaningful difference. Because vinegar and mustard also contain sodium, using them sparingly — or skipping them altogether — is another easy way to cut intake.