Top 10 · Updated October 2026

Lowest-Calorie Unknown

The 10 lightest unknown products on this list range from 12 to 633.3 kcal per 100 g. The unknown with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 13 unknown with complete data.

  1. 1 Monster Energy Zero Ultra

    Monster Energy Zero Ultra

    MONSTER ENERGY · 19.2 fl. oz.
    NOVA 4 12 kcal 0 g protein 0 g fat

    Also: Palm oil free

  2. 2 Four Cheese Alfredo Pasta Sauce

    Four Cheese Alfredo Pasta Sauce

    Classico · 15 oz
    c NOVA 4 75 kcal 1 g sugar 1 g protein 3 g fat

    Also: Palm oil free

  3. 3 Wild Caught Sardines In Water No Salt Added

    Wild Caught Sardines In Water No Salt Added

    Open Nature
    a NOVA 1 184 kcal 0 g sugar 21.8 g protein 10.3 g fat

    Also: Palm oil free · No additives

  4. 4 Balsamic Vinegar of Modena By Kirkland Signature - 33.8 FL Oz 33.8 FL Oz

    Balsamic Vinegar of Modena By Kirkland Signature - 33.8 FL Oz 33.8 FL Oz

    Signature
    d NOVA 1 200 kcal 40 g sugar 0 g protein 0 g fat

    Also: Palm oil free · No additives

  5. 5 Organic Concord Grape fruit spread

    Organic Concord Grape fruit spread

    Welch's
    d 250 kcal 65 g sugar 0 g protein 0 g fat
  6. 6 Unknown

    Unknown

    Unknown
    d NOVA 4 360 kcal 8 g sugar 10.7 g protein 2 g fat

    Also: Palm oil free

  7. 7 Microwave Popcorn

    Microwave Popcorn

    Black Jewell · 27 g
    NOVA 1 370 kcal 11.1 g protein 5.6 g fat

    Also: Palm oil free · Vegan · Vegetarian

  8. 8 Microwave Popcorn

    Microwave Popcorn

    H-E-B Organics · 33 g
    NOVA 3 400 kcal 10 g protein 8.3 g fat

    Also: No additives

  9. 9 Simply Popped butter

    Simply Popped butter

    Jolly Time · 34 g
    e NOVA 3 441 kcal 0 g sugar 5.9 g protein 26.5 g fat
  10. 10 Creamy Cashew Butter

    Creamy Cashew Butter

    Once Again · 30 g
    d NOVA 3 633 kcal 6.7 g sugar 16.7 g protein 50 g fat

    Also: Palm oil free · Vegan · Vegetarian

How we built this list

We ranked all published unknown 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 unknown rankings