Top 10 · Updated October 2026

Highest-Protein Onions

Onions: typically 1.1 g of protein per 100 g (median of 191 products). The onions with the most protein per 100 g. Useful if you are trying to increase your protein intake. We checked 166 onions with complete data.

  1. 1 Cebolla

    Cebolla

    a 0 g sugar 70 g protein 0 g fat
  2. 2 Cebollas

    Cebollas

    Constantino · 1 kg
    c NOVA 1 303 kcal 42 g sugar 18 g protein 3 g fat

    Also: Palm oil free · Vegan · Vegetarian

  3. 3 Onion Nuts

    Onion Nuts

    Jėga · 200g
    e 533 kcal 5.3 g sugar 12.2 g protein 34 g fat

    Also: No additives

  4. 4 Oignon

    Oignon

    e 333 kcal 11.1 g sugar 11.1 g protein 0 g fat
  5. 5 Cheese&onion gruffalo claws

    Cheese&onion gruffalo claws

    organix
    c NOVA 3 437 kcal 2.9 g sugar 9.8 g protein 14 g fat

    Also: Palm oil free · No additives

  6. 6 Chopped onion

    Chopped onion

    Kirkland
    c NOVA 1 348 kcal 37.4 g sugar 9 g protein 0.5 g fat

    Also: Palm oil free · Vegan · Vegetarian

  7. 7 Cebolla roja

    Cebolla roja

    Consuay
    354 kcal 3 g sugar 8 g protein 10 g fat
  8. 8 Oignons rissolés

    Oignons rissolés

    M Classic · 60 g
    e NOVA 3 590 kcal 9 g sugar 6 g protein 44 g fat

    Also: Vegan · Vegetarian · No additives

  9. 9 Cebolla negra

    Cebolla negra

    92 kcal 17 g sugar 4.3 g protein 0 g fat
  10. 10 Green onions oignons vert

    Green onions oignons vert

    Tanimura & Antle · 5.5 oz or 156 g
    NOVA 1 33 kcal 3.3 g sugar 3.3 g protein 0 g fat

    Also: Palm oil free · Vegan · Vegetarian

How we built this list

We ranked all published onions on Foodmetria that have a photo and the required nutrition data, using values per 100 g from the product label. Ties are broken by Nutri-Score and by how often shoppers scan the product. Rankings update automatically as label data changes. Read our methodology.

More onions rankings

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