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Zucchini is low in calories, with just 17 calories per 100 grams, making it one of the most weight-loss-friendly vegetables you can add to your plate.
If you’ve been asking yourself “are zucchini low calorie?” then you’re in the right place, because the answer is a resounding yes.
This summer squash is mostly water, packed with fiber, and loaded with vitamins, yet it barely makes a dent in your daily calorie budget.
In this post, we’ll explore why zucchini are low calorie, what makes them so filling, and how you can enjoy them without worrying about your waistline.
Let’s dive into why this versatile veggie deserves a spot in your kitchen.
Why Zucchini Are Low Calorie
Zucchini are low calorie for several reasons, and understanding these reasons helps you appreciate just how useful they are in a healthy diet.
1. Zucchini Are Mostly Water
The main reason zucchini are low calorie is that they’re about 94 percent water.
Water adds volume and weight without adding calories, so a whole cup of chopped zucchini weighs a fair bit but contributes almost nothing to your energy intake.
This high water content is also why zucchini feel so hydrating and refreshing, especially in summer dishes.
2. Zucchini Are Naturally Low in Fat and Carbs
Zucchini contain only trace amounts of fat and very few carbohydrates.
A 100-gram serving of zucchini has roughly 3 grams of carbs, and about 1 gram of that is fiber.
Since fat and carbs are the main sources of calories in most foods, their near absence in zucchini is exactly why zucchini are low calorie.
3. Fiber Makes Zucchini Filling Without Calories
Even though zucchini are low calorie, they still contain a decent amount of fiber.
Fiber passes through your digestive system largely intact, so it doesn’t contribute many calories, yet it helps you feel full and satisfied.
That’s why zucchini are low calorie but still great for keeping hunger at bay.
When you eat zucchini, you get the bulk and satisfaction of a filling food without the calorie load.
How Many Calories Are in Zucchini?
If you want exact numbers, here’s a quick breakdown of how low calorie zucchini really are.
1. Raw Zucchini Calories
One cup of raw, chopped zucchini with the skin on contains about 20 calories.
That’s it.
For comparison, one cup of cooked white rice has over 200 calories, so zucchini are low calorie by a huge margin.
2. Cooked Zucchini Calories
When you cook zucchini, the calorie count stays low, though it depends on how you prepare them.
Steamed or roasted zucchini with a light spray of oil still comes in around 25 to 30 calories per cup.
The zucchini themselves remain low calorie no matter how you cook them, but added oils and sauces can quickly change that.
3. Zucchini Noodles vs. Regular Pasta
This is where zucchini really shine.
A cup of zucchini noodles, often called zoodles, has about 20 calories.
A cup of regular cooked pasta has around 220 calories.
So swapping pasta for zucchini noodles is one of the easiest ways to enjoy a low calorie meal that still feels hearty and satisfying.
Are Zucchini Low Calorie and Nutritious?
Yes, zucchini are low calorie, but they’re also surprisingly nutritious, which makes them a smart choice for anyone watching their weight.
1. Vitamins and Minerals in Zucchini
Zucchini are rich in vitamin C, vitamin A, potassium, and manganese.
They also provide B vitamins like folate, which supports cell health and energy production.
So even though zucchini are low calorie, they still deliver real nutritional value.
2. Antioxidants in Zucchini
Zucchini contain antioxidants like lutein and zeaxanthin, which support eye health.
The skin is especially rich in these compounds, so leave the peel on when you can.
Antioxidants help fight inflammation, and getting them from a low calorie food like zucchini is a win-win.
3. Zucchini Support Hydration
Because zucchini are mostly water, they help keep you hydrated.
Proper hydration supports digestion, skin health, and even appetite control.
So zucchini are low calorie and hydrating at the same time, which is a rare and helpful combination.
How to Enjoy Zucchini on a Low Calorie Diet
Since zucchini are low calorie, you can enjoy them in tons of creative ways without derailing your diet.
1. Grill or Roast Zucchini
Grilling and roasting bring out zucchini’s natural sweetness.
Just slice them, add a spritz of olive oil, and season with herbs.
You’ll end up with a flavorful side dish that’s still low calorie.
2. Add Zucchini to Soups and Stews
Chop zucchini into soups and stews to add bulk and texture.
Because zucchini are low calorie, they let you make bigger, more filling portions without adding many calories.
They also soak up the flavors of the broth beautifully.
3. Bake with Zucchini
Yes, you can even bake with zucchini.
Zucchini bread, muffins, and brownies use zucchini for moisture and texture, letting you cut back on oil and sugar.
While baked goods aren’t automatically low calorie, adding zucchini helps keep them lighter than traditional recipes.
4. Use Zucchini as a Pasta Swap
Spiralize zucchini into noodles and top with your favorite sauce.
Since zucchini are low calorie, you can pile your plate high and still stay within your goals.
It’s a simple switch that makes comfort food work for you instead of against you.
So, Are Zucchini Low Calorie?
Zucchini are low calorie, with only about 17 calories per 100 grams and roughly 20 calories per cup.
They’re mostly water, low in fat and carbs, and packed with fiber, vitamins, and antioxidants.
So if you’ve been wondering whether zucchini are low calorie, the answer is clear, and that makes them a fantastic addition to any weight-conscious kitchen.
Whether you grill them, spiralize them, or sneak them into baked goods, zucchini are low calorie and endlessly versatile.