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Zucchini

Vegetable

Zucchini

A low-calorie, high-water summer squash commonly used as a low-carb pasta alternative.

A mild-flavored summer squash that is highly versatile in cooking, often used as a low-carb substitute for pasta or grains due to its high water and low calorie content.

high-volume low-calorie vegetable

Typical serving · 130g

Common varieties · green zucchini, yellow zucchini, round zucchini, zucchini noodles (zoodles), baby zucchini

85health

Overall context score across nutrition, safety, and diet fit

At a glance

Quick facts

Simple indicators based on nutrition, processing, and diet fit.

Low calorieLow carbLow glycemicWeight lossDiabetes-friendlyGut health

The story

What makes it unique

Zucchini is a fast-digesting, high-volume food composed of over 94% water. Its macronutrient profile is very low in calories and carbohydrates, with modest amounts of fiber. It provides a moderate source of vitamin C and potassium. As a minimally processed whole food, it requires minimal digestive effort and offers high satiety per calorie, though its low protein and fat content mean it does not provide sustained energy alone.

Varieties: green zucchini · yellow zucchini · round zucchini · zucchini noodles (zoodles) · baby zucchini

#zucchini#lowcalorie#lowcarb#summersquash#ketovegetable#weightlossfood#highwatercontent#zoodles#bloodsugarfriendly#glutenfreepastaalternative

Per 100g

Nutrition breakdown

Macro balance and key metrics at a glance.

Energy

17kcal

Density 0.17 kcal/g

Protein

1.2g

Carbs

3.1g

Fat

0.3g

Fiber

1g

Sugar

2.5 g

Sodium

8 mg

Potassium

261 mg

Glycemic index

15

Glycemic load

1

Water content

94%

Standout compounds

Nutrient highlights

  • Vitamin C

    moderate

    Supports immune function and acts as an antioxidant to protect cells from damage.

  • Potassium

    moderate

    Helps regulate blood pressure and fluid balance in the body.

  • Water

    high

    Promotes hydration and contributes to the extremely low energy density of the vegetable.

  • Manganese

    low

    Plays a role in metabolism, bone formation, and antioxidant defense.

Wellness map

Health scores & processing

Weight loss
95
Satiety
70
Blood sugar
95
Gut health
70
Heart health
80
Fitness
50
Processing
100

NOVA processing scale

1
Min
2
3
4
Ultra

unprocessed · Whole food

Whole zucchini is a raw agricultural commodity. Minimal processing like cutting or spiralizing does not alter its nutritional structure.

Diet compatibility

  • Weight loss
  • Muscle gain
  • Diabetes
  • Gut health
  • Low carb
  • High protein
  • Heart health

Relative standing

Food rankings

Qualitative ranks compared to similar whole foods.

  • Satietygood
  • Blood sugarexcellent
  • Nutrient densitymoderate
  • Fitness fuelpoor
  • Processing qualityexcellent

Eat with confidence

Food safety profile

Zucchini is generally very safe to eat raw or cooked. The primary concern is pesticide residues on the skin of conventionally grown varieties. Washing thoroughly reduces this risk significantly.

90safety

Evidence confidence 85%

  • Pesticidesmoderate
  • Antibioticslow
  • Heavy metalslow
  • Contaminationlow

Watch for

  • organophosphate pesticide residues
  • soil-borne bacteria

Safer choices

Organic zucchini to avoid pesticide residues and GMO varieties.

Prep tips

Rinse under cold running water and scrub the skin gently with a vegetable brush to remove dirt and potential pesticide residue.

Conventional zucchini often appears on produce lists with moderate pesticide residue concerns. Some genetically modified varieties (virus-resistant) exist but are heavily regulated.

Deep dive

Health analysis

How this food may fit different goals and preparation choices.

  1. Weight loss

    Extremely effective for weight loss due to high volume and low calorie count, allowing dieters to eat large portions without exceeding caloric limits.

  2. Blood sugar

    Virtually no impact on blood sugar due to extremely low carbohydrate content and glycemic load, making it safe for diabetic diets.

  3. Fitness & energy

    Not a significant source of fuel for high-intensity exercise, but useful for meal volume and hydration for athletes cutting weight.

  4. Gut health

    Provides mild fiber to support digestion and regularity, though not a high-fiber powerhouse. Very easy to digest for sensitive stomachs.

  5. Processing quality

    A whole, unprocessed food that retains all natural vitamins, minerals, and water content from harvest to plate.

  6. Food safety

    Generally safe with low contamination risk. Peeling or buying organic reduces exposure to topical pesticide residues.

  7. Common mistakes

    Overcooking zucchini until mushy, which ruins its texture and leaches water-soluble nutrients like vitamin C into the pan.

  8. Best preparation

    Lightly sautéed, grilled, roasted, or spiralized raw into salads to maintain texture and nutrient integrity.

Practical guide

Best use cases

When and how this food fits real eating patterns.

  • Low-carb pasta replacement

    Spiralized into zoodles as a base for pasta sauces, drastically reducing meal carbohydrate content.

  • High-volume dieting

    Bulk up soups, stews, and stir-fries with minimal caloric addition to increase meal size.

  • Baking moisture enhancer

    Grated and added to muffins or breads to increase moisture and nutrient density without added fat.

Balance sheet

Pros & cons

Upsides

  • Very low in calories and carbohydrates
  • High water content promotes hydration and fullness
  • Versatile for cooking and low-carb substitutions
  • Good source of vitamin C and potassium
  • Easy to digest and gentle on the gut

Trade-offs

  • Very low protein and fat require pairing for balanced meals
  • Can become mushy and release excess water if overcooked
  • Not a significant source of sustained energy
  • Conventional varieties may carry pesticide residues on the skin

Fit check

Who is it for?

Great match

  • weight loss diets
  • low-carb and keto diets
  • diabetic meal plans
  • high-volume eating
  • increasing vegetable intake

Consider alternatives

  • high-protein diets
  • calorie-dense bulking phases
  • strict fasting periods requiring zero intake

Side by side

How it compares

Open the full head-to-head analysis for nutrition, safety, and practical tradeoffs.

  • Zucchini

    This food

    Zucchini

    VS95% alike
    Yellow Squash

    Compare with

    Yellow Squash

    Zucchini and yellow squash are nutritionally almost identical, though zucchini is slightly firmer and milder in flavor.

    Zucchini and yellow squash are nutritionally identical, but zucchini is slightly firmer, making it better for zoodles.

    Zucchini vs Yellow Squash
  • Zucchini

    This food

    Zucchini

    VS90% alike
    Cucumber

    Compare with

    Cucumber

    Cucumber is slightly lower in calories and carbs, but zucchini offers more vitamin C and potassium.

    Cucumbers are slightly lower in calories, but zucchini provides more vitamins and is more versatile for cooking.

    Zucchini vs Cucumber
  • Zucchini

    This food

    Zucchini

    VS80% alike
    Eggplant

    Compare with

    Eggplant

    Zucchini is much lower in calories and does not absorb oil like eggplant does during cooking.

    Zucchini is far lower in calories than eggplant because eggplant acts like a sponge for cooking oils.

    Zucchini vs Eggplant
  • Zucchini

    This food

    Zucchini

    VS75% alike
    Spaghetti Squash

    Compare with

    Spaghetti Squash

    Zucchini is lower in calories and carbs, while spaghetti squash has a texture that more closely mimics spaghetti strands.

    Zucchini is lower in carbs and calories, but spaghetti squash provides a better pasta-like texture and slightly more fiber.

    Zucchini vs Spaghetti Squash
  • Zucchini

    This food

    Zucchini

    VS70% alike
    Carrots

    Compare with

    Carrots

    Zucchini is lower in sugar and carbs, while carrots are significantly higher in beta-carotene and vitamin A.

    Zucchini is lower in sugar and better for strict low-carb diets, while carrots offer much more vitamin A.

    Zucchini vs Carrots
  • Zucchini

    This food

    Zucchini

    VS65% alike
    Broccoli

    Compare with

    Broccoli

    Broccoli is much more nutrient-dense, offering far more fiber, protein, and vitamins per calorie than zucchini.

    Broccoli is far more nutrient-dense and higher in fiber, while zucchini is strictly lower in calories.

    Zucchini vs Broccoli
  • Zucchini

    This food

    Zucchini

    VS65% alike
    Cauliflower

    Compare with

    Cauliflower

    Cauliflower is higher in fiber and vitamin C, while zucchini is lower in calories and more hydrating.

    Cauliflower provides more fiber and vitamin C, but zucchini is lower in calories and works better as a pasta sub.

    Zucchini vs Cauliflower
  • Zucchini

    This food

    Zucchini

    VS60% alike
    Bell Pepper

    Compare with

    Bell Pepper

    Bell peppers are much higher in vitamin C and sugar, while zucchini is lower in carbs and more neutral in flavor.

    Bell peppers are much higher in vitamin C and natural sugars, while zucchini is lower in carbs and more neutral.

    Zucchini vs Bell Pepper
  • Zucchini

    This food

    Zucchini

    VS55% alike
    Butternut Squash

    Compare with

    Butternut Squash

    Butternut squash is much higher in calories, carbs, and vitamin A, while zucchini is a low-calorie, low-carb choice.

    Zucchini is far lower in calories and carbs, whereas butternut squash provides more substantial energy and vitamin A.

    Zucchini vs Butternut Squash
  • Zucchini

    This food

    Zucchini

    VS40% alike
    Sweet Potato

    Compare with

    Sweet Potato

    Sweet potato is a high-energy carb source rich in vitamin A, while zucchini is a low-energy volume food.

    Zucchini is best for cutting calories and carbs, while sweet potatoes are far superior for pre-workout energy and vitamin A.

    Zucchini vs Sweet Potato

Common questions

FAQ

Answers aligned with how people search for this food.

  • Is zucchini good for weight loss?

    Yes, zucchini is excellent for weight loss. It is extremely low in calories and high in water, allowing you to eat large volumes of food without consuming excess calories.

  • How many carbs are in zucchini?

    There are only about 3 grams of carbohydrates per 100 grams of raw zucchini, with 1 gram being fiber, resulting in just 2 grams of net carbs.

  • Is zucchini keto friendly?

    Yes, zucchini is highly keto-friendly due to its very low net carb count. It is widely used as a pasta substitute (zoodles) on ketogenic diets.

  • Does zucchini spike blood sugar?

    No, zucchini has a glycemic index of around 15 and a glycemic load of 1, meaning it has an almost negligible effect on blood sugar levels.

  • Is zucchini better cooked or raw?

    Both are healthy. Raw zucchini retains more vitamin C, while lightly cooking zucchini can make certain antioxidants more bioavailable and the vegetable easier to digest for some people.

  • How do you keep zucchini from getting watery when cooking?

    Salt the sliced or grated zucchini and let it sit for 15 minutes to draw out excess water, then pat it dry with a paper towel before cooking.

  • Do you need to peel zucchini?

    No, the skin is completely edible and contains a large portion of the fiber and antioxidants. It also helps the vegetable hold its shape during cooking.

  • What is the difference between zucchini and yellow squash?

    While nutritionally very similar, zucchini is a dark green cylinder with a slightly firmer texture and milder flavor, whereas yellow squash often has a wider bottom and slightly more seeds.

Transparency

Data confidence

Estimated confidence for nutrition data, interpretation, safety notes, and comparisons.

95

Nutrition data

90

Health analysis

85

Food safety

90

Comparisons