The Carbs Nutrition Guide (Grains & Potatoes)
Udon
Per 100 g as eaten — cooked for grains, pasta, and roots; as sold for bread. One serving = 140 g (Pastas, plain), the FDA reference amount (21 CFR 101.12).
GI(glucose = 100)
Atkinson et al., International tables of glycemic index — Table 1 pooled means (Diabetes Care) (2008)
GL(per 100 g)
15.6 per serving
Atkinson et al., International tables of glycemic index — Table 1 pooled means (Diabetes Care) (2008)
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Fiber(g/100g)
1.8 g per serving
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Net carbs(g/100g)
28.4 g per serving
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Energy(kcal/100g)
133 kcal per serving
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Protein(g/100g)
3.6 g per serving
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Sodium(mg/100g)
168 mg per serving
Japan MEXT — Standard Tables of Food Composition in Japan 2020 (8th revised edition), data file of 2026-03-27 — udon, boiled (food 01039) (2020)
Empty cells mean we do not yet have a method-cited source. Rank on the guide tables is the open-rule champion — not medical advice.