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How much protein is in cucumber?

1/2 cup sliced (52 g) of cucumber has 0.3 g of protein and 7 calories: about 4.3 g of protein per 100 calories, which is moderate.

At a glance

  • 0.3 g protein and 7 calories per 1/2 cup sliced (52 g).
  • 4.3 g protein per 100 calories: #301 of 536 foods in our USDA list, #46 of 89 in vegetables.
  • 0.3 g fiber and 1 mg sodium per serving.

What is cucumber like to eat?

Cucumbers are crisp, cool vegetables that are mostly water. They are eaten raw in salads, as a snack with dips and in cool sauces like tzatziki.

How can you eat more cucumber?

Try this

Slice and dip in hummusMake tzatziki with yogurt and garlicAdd to a Greek saladTop with smoked salmon

Is cucumber good on a GLP-1?

Cool cucumber is light and refreshing, which can be easy on days when heavier food is hard. Protein density matters more when your appetite is small: see protein on a GLP-1.

How does cucumber compare?

FoodServingProteinCaloriesProtein per 100 kcal
Cucumber1/2 cup sliced0.3 g74.3 g
Hummus2 tbsp2.2 g693.2 g
Greek yogurt3/4 cup17.5 g10416.9 g
Smoked salmon1 oz5.1 g3315.6 g

Close to cucumber per calorie: cheddar cheese (5.7 g), chickpeas (5.3 g), peanuts (4.2 g), peanut butter (4.1 g).

Compare more foods with the protein finder, or see protein in every food we cover.

What should you look for when you buy it?

Choose firm cucumbers; thin-skinned varieties do not need peeling.

What's the full nutrition for cucumber?

NutrientPer 1/2 cup sliced (52 g)Per 100 g% Daily Value
Calories714
Protein0.3 g0.6 g1%
Fat0.1 g0.2 g
Saturated fat0 g0 g0%
Carbohydrate1.6 g3 g
Fiber0.3 g0.5 g1%
Sugar0.9 g1.7 g
Sodium1 mg2 mg0%
Calcium8 mg16 mg1%
Iron0 mg0 mg0%
Vitamin B120 mcg0 mcg0%
Vitamin D0 mcg0 mcg0%

USDA FoodData Central, Foundation: "Cucumber, with peel, raw". % Daily Value uses the FDA's values for adults (protein 50 g, fiber 28 g, sodium 2,300 mg). "Not listed" means USDA didn't measure it for this food, not that it's zero. Brands differ, so check your label.

General education about food, not medical advice. If you have kidney disease or another condition that affects protein, talk to your doctor or a registered dietitian about your own needs.
Sources (3)
  1. USDA FoodData Central (Foundation): Cucumber, with peel, raw
  2. FDA: How to understand and use the Nutrition Facts label
  3. Mozaffarian et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory (ACLM, ASN, OMA, TOS). Obesity Pillars, 2025

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