Zucchini has a reputation for being... well, a bit boring. Watery, bland, the vegetable that shows up in overwhelming quantities every August. But that's missing the point. Its quiet, unassuming nature is its superpower. It's a low-calorie, low-carb chameleon that soaks up flavor while delivering hydration and a surprising little hit of vitamin C. The trick isn't to make zucchini taste like something else, but to let it be the brilliant, versatile foundation it is.
↑ Zucchini's high water content and low calorie count make it incredibly versatile.
The quiet super-vegetable
Zucchini, or courgette if you're in the UK, is about 95% water. This isn't a flaw; it's the whole point. It means you get a lot of satisfying volume for very few calories, making it a star player in weight management. It also means it's a blank canvas, ready to soak up the flavors of whatever you cook it with — garlic, herbs, spices, you name it.
It's a summer squash, but it's available year-round. And while it might not scream 'superfood,' it's quietly one of the most useful vegetables you can keep in your fridge: low-carb, low-calorie, and surprisingly nutrient-dense for something so light.
IN ONE LINE
Zucchini is a high-volume, low-calorie food that's extremely low-carb and low-GI, making it a go-to for weight loss, diabetes, and keto diets.
Zucchini nutrition facts
Here's the nutritional breakdown for a 100-gram serving, which is about one small zucchini or a packed cup of chopped zucchini.
The numbers are almost comically low, which is exactly the appeal. With only 17 calories and around 2 grams of net carbs (total carbs minus fibre), it's one of the lightest vegetables around. Yet, that small serving still packs a solid 20% of your daily vitamin C.
Zucchini's glycemic index
Glycemic index (GI) ranks how fast a food raises blood sugar. Zucchini is a non-starchy vegetable with so few carbohydrates that its GI is considered negligible — it's too low to be formally measured in most cases. For context, it has far less impact on blood sugar than even low-GI fruits. This makes it an exceptionally safe and beneficial food for anyone managing blood sugar levels.
GLYCEMIC INDEX · ZUCCHINI vs COMMON FOODS
Zucchini has a negligible effect on blood sugar
Zucchini
non-starchy veg (est.)
LOW
Cherries
whole fruit
LOW
Apple
whole fruit
LOW
Pineapple
whole fruit
MEDIUM
White bread
refined
HIGH
SCALE 0–90
04590
How to prep it right
The difference between great zucchini and a soggy mess is all in the prep. A few simple tricks make all the difference.
01
Don't peel it.
The dark green skin is where much of the fibre and antioxidants are. Just give it a good wash.
02
Salt it (sometimes).
For frying, grilling, or layering in a lasagna, salting chopped zucchini for 15-20 minutes and patting it dry draws out excess water. This prevents sogginess and helps it brown.
03
Don't overcook it.
Whether you're sautéing or roasting, cook it until it's just tender-crisp. A minute too long and it turns to mush.
04
Grate it into things.
Grated zucchini disappears into sauces, meatballs, and even baked goods like muffins, adding moisture and nutrients without anyone noticing.
05
Eat it raw.
It's fantastic raw. Use a vegetable peeler to shave it into ribbons for a salad with lemon, olive oil, and parmesan. It's crisp and refreshing.
What zucchini is good for
01
Weight management
At just 17 calories per 100g, its high water and fibre content helps you feel full on very few calories.
17
calories
02
A low-carb building block
It's a foundational vegetable for keto and low-carb diets, easily turned into 'zoodles', lasagna sheets, or pizza bases.
~2g
net carbs
03
A useful vitamin C boost
One small zucchini provides about 20% of your daily vitamin C, which is vital for your immune system and skin health.
20%
vit C DV
04
Rich in antioxidants
The skin, in particular, contains antioxidants like lutein and zeaxanthin, which are beneficial for eye health.
Skin-on
is best
What to pair zucchini with
Zucchini is a team player. Its mild flavor means it gets along with almost everything. Here are a few classic combinations.
Eat freely — or be mindful?
Three ways to eat it
Move beyond basic steamed zucchini with these simple, flavorful ideas that make the most of its texture and versatility.
Want easy, healthy meals planned for you?
Our meal planner uses versatile ingredients like zucchini to create balanced, low-carb, and delicious weekly plans. Get your custom plan, macros, and a single grocery list in seconds.
Build my weekly plan →SOURCES & REFERENCES · 3
One more thing
Eating well is rarely about willpower. It’s about having a short list of dinners you actually want to eat. Pick two from this list. Make them next week. The rest will follow.
If you want these on autopilot, our weekly meal planner can drop the picks above into your calendar with one click and build a single grocery list from the merged ingredients.
FREQUENTLY ASKED QUESTIONS
Frequently asked questions
Is zucchini good for weight loss?
Yes, it's fantastic for weight loss. It is extremely low in calories (17 per 100g) but high in water and has some fibre, which helps you feel full and satisfied.
Is zucchini keto-friendly?
Absolutely. With only about 2 grams of net carbohydrates per 100g, zucchini is a staple on the keto diet. It's often used to make low-carb noodles ('zoodles'), pizza bases, and more.
Can you eat zucchini raw?
Yes, and it's delicious. Raw zucchini is crisp and has a very mild, slightly sweet flavor. Try shaving it into ribbons with a vegetable peeler and tossing it in a salad with lemon juice, olive oil, and a hard cheese like parmesan.
Should you peel zucchini?
It's better not to. The dark green skin is perfectly edible and contains a good portion of the vegetable's fibre and antioxidants. Just be sure to wash it well before using.
METHODOLOGY
How this article was created
Built using verified nutrition databases, culinary research, and traditional cooking knowledge — every claim is cross-referenced against the sources listed in the article.
· USDA data· Culinary research· Quality reviewed
Read our methodology →TRANSPARENCY
About this content
Articles are curated using trusted food databases (USDA FoodData Central, IFCT), culinary literature, and dietary guidelines, then structured by our editorial team for clarity, accuracy, and usefulness.
· Verified data sources· Culinary research· Quality reviewed
Read our editorial policy →EXPLORE OUR MEALS
Meals that fit this article
AMERICAN · 1677 CAL
Almonds with Sliced Apple + supplement + iron
MEDITERRANEAN · 809 CAL
Greek Yogurt with Berries Almonds and Granola + supplement + iron
GENERAL_HEALTHY · 705 CAL
Banana with Peanut Butter Pregnancy + supplement + iron
MODERN · 982 CAL
Hummus with Crudits and Pita with Fresh Orange Snack + supplement + iron
TAGGED
KEEP READING
More from the kitchen table
Health & Nutrition · 9 MIN
Asparagus spears: Nutrition, Benefits, Glycemic Index & How to Cook It
Health & Nutrition · 9 MIN
Collard Greens: Nutrition, Vitamin K, Glycemic Index & How to Cook Them
Health & Nutrition · 8 MIN