Why is Tofu miso soup classified as ultra‑processed (NOVA 4) and what specific additives does it contain?

The soup is labeled NOVA 4 because it is a dehydrated, ready‑to‑eat product that includes several industrial food‑grade additives: dextrin (E1400) as a filler, calcium silicate (E516) as a firming agent, monosodium glutamate (E621) for flavor enhancement, disodium guanylate (E631) and disodium inosinate (E635) as flavor enhancers, and citric acid (E330) as an acidifier.

How does the high sugar and salt content in this tofu miso soup affect people with diabetes or hypertension?

With 12 g of sugar and 14.6 g of salt per 100 g, the soup can cause rapid spikes in blood glucose for diabetics and elevate blood pressure for those with hypertension; therefore, it should be consumed only occasionally and in small portions, and paired with low‑sodium, low‑sugar foods if used in a regular diet.

Is the soy present in the miso and tofu a concern for people with soy allergy?

Yes. Soy is a major component of both the miso powder (approximately 24 % of the product) and the tofu (about 4.5 % of the product), and the label clearly marks soy as an allergen, so anyone with a soy allergy should avoid this soup.

S&B • 30 g

Tofu miso soup

Composite Foods

Product Insights

Tofu miso soup is an instant, dehydrated Japanese‑style miso soup sold in a 30 g cardboard box with three inner plastic sachets, marketed as a one‑dish meal. Per 100 g it provides 324 kcal, 20 g protein and 9 g fiber, but also contains 12 g sugars and an unusually high 14.6 g of salt, placing its energy and sodium well above the average for instant soups. The product is classified as NOVA 4 ultra‑processed and lists several food‑grade additives such as dextrin (E1400), calcium silicate (E516), monosodium glutamate (E621), disodium guanylate (E631), disodium inosinate (E635) and citric acid (E330); it carries a soy allergen warning and has no Nutri‑Score assigned.

Nutritional Values

Values per 100 g

Energy Kcal324 kcal

Fat6.4 g

Saturated Fat1.1 g

Carbohydrates42.1 g

Sugars12 g

Comparative Analysis

Compared with typical instant soups, this tofu miso soup contains roughly three times more sugar, five times more salt, and double the protein and fiber, while also delivering almost double the calories per 100 g.

Ingredients

Miso en poudre (_soja_, riz, sel) (49,4 %), dextrine, sucre, tofu (_Soja_, Agent raffermissant: E516, Tréhalose, Amidon de maïs modifié) (6,0 %), Algues wakame déshydratées (4,0 %), Exhausteur de goût: E621, E631, E635, Sel, Oignon vert déshydraté (1,0 %), Varech en i poudre, acidifiant: Acide citrique,

84%

35%

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