Low-Calorie Foods

Rule: 40 kcal or fewer per 100g.

Every food here comes in at 40 kcal or under per 100g — mostly vegetables, a couple of lower-sugar fruits, and two beverages (black coffee and unsweetened almond milk) that are genuinely calorie-sparse rather than just diluted with water. The rule is intentionally about energy density, not about any food being inherently better or worse — a food that misses this list by a few kcal per 100g, like a carrot or an orange, isn't meaningfully different in practice.

• Beverages, coffee, brewed, prepared with tap water

  2 kcal · 0g protein per 1 cup, brewed

• Cucumber, with peel, raw

  45 kcal · 2g protein per 1 medium, with peel

• Beverages, almond milk, unsweetened, shelf stable

  36 kcal · 1g protein per 1 cup

• Tomatoes, red, ripe, raw, year round average

  22 kcal · 1g protein per 1 medium

• Spinach, raw

  7 kcal · 1g protein per 1 cup, raw

• Peppers, sweet, red, raw

  31 kcal · 1g protein per 1 medium

• Watermelon, raw

  46 kcal · 1g protein per 1 cup, diced

• Strawberries, raw

  49 kcal · 1g protein per 1 cup, halves

• Broccoli, raw

  31 kcal · 3g protein per 1 cup, chopped

• Kale, raw

  23 kcal · 2g protein per 1 cup, chopped

• Onions, raw

  44 kcal · 1g protein per 1 medium

No foods currently in the database meet this rule.

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