Zucchini Macros: Complete Nutrition Guide

Zucchini is a dieter’s dream vegetable. Low in calories, low in carbs, and versatile enough to replace pasta, add bulk to meals, or stand alone as a satisfying side dish. If you’re watching your macros, zucchini should be in regular rotation.

The rise of spiralized “zoodles” made zucchini a weight loss staple, but this vegetable does more than just mimic pasta. It’s a legitimate volume food that helps you eat more while consuming less.

This guide covers zucchini macros in all forms—raw, cooked, and spiralized—plus how to use it strategically.

Zucchini Macros: Quick Reference

Here’s the complete nutritional picture for zucchini.

Per Cup Raw, Sliced (124g)

Nutrient	Amount	% Daily Value
Calories	21	1%
Protein	1.5g	3%
Total Carbs	3.9g	1%
Fiber	1.2g	4%
Net Carbs	2.7g	-
Fat	0.4g	1%
Vitamin C	22mg	37%
Vitamin B6	0.2mg	10%
Potassium	324mg	7%
Manganese	0.2mg	10%

Per Medium Zucchini (196g)

Nutrient	Amount
Calories	33
Protein	2.4g
Total Carbs	6.1g
Fiber	2g
Net Carbs	4.1g
Fat	0.6g

Per 100g (Raw)

Nutrient	Amount
Calories	17
Protein	1.2g
Carbs	3.1g
Fiber	1g
Fat	0.3g

Key insight: Zucchini is about 95% water. The remaining 5% is mostly fiber and small amounts of natural sugars.

Zucchini vs Similar Vegetables

How does zucchini compare to other low-calorie vegetables?

Vegetable (1 cup raw)	Calories	Carbs	Fiber	Net Carbs
Zucchini	21	3.9g	1.2g	2.7g
Yellow squash	21	4g	1.2g	2.8g
Cucumber	16	3.8g	0.5g	3.3g
Eggplant	20	4.7g	2.5g	2.2g
Bell pepper	30	6g	2g	4g
Broccoli	31	6g	2.4g	3.6g
Cauliflower	25	5.3g	2.1g	3.2g

Zucchini ranks among the lowest in both calories and net carbs, making it ideal for volume eating.

See also: Cucumber Macros | Kale Macros

Zucchini Noodles (Zoodles) Macros

Zucchini noodles have become a low-carb diet staple. Here’s how they compare to pasta:

Zoodles vs Regular Pasta

Per Cup Cooked	Zoodles	Spaghetti
Calories	20	220
Protein	1.5g	8g
Carbs	4g	43g
Fiber	1g	2.5g
Net Carbs	3g	40.5g
Fat	0g	1g

The swap saves: 200 calories and 37g net carbs per cup—enormous for portion-controlled eating.

Making Great Zoodles

Spiralizer method:

1. Cut ends off zucchini
2. Run through spiralizer
3. Light salt to draw out moisture (10 min)
4. Pat dry before cooking

Cooking methods:

• Raw: Use as salad or cold noodle
• Quick sauté: 2-3 minutes in hot pan
• Microwave: 1-2 minutes
• Bake: 400°F for 10-15 minutes

Key tip: Don’t overcook. Zoodles turn mushy quickly. Brief cooking preserves texture.

Zoodle Meal Ideas

Zoodles with marinara:

• 2 cups zoodles: 40 cal
• 1/2 cup marinara: 50 cal
• Parmesan (2 tbsp): 40 cal
• Total: 130 cal vs 360 cal with pasta

Zoodles pad thai:

• 2 cups zoodles: 40 cal
• Pad thai sauce (2 tbsp): 60 cal
• Shrimp (4 oz): 100 cal
• Peanuts (1 tbsp): 50 cal
• Total: 250 cal vs 500+ with rice noodles

Zoodles alfredo:

• 2 cups zoodles: 40 cal
• Light alfredo (1/4 cup): 90 cal
• Chicken (4 oz): 180 cal
• Total: 310 cal vs 650 cal with fettuccine

Zucchini for Different Diet Goals

Zucchini for Weight Loss

Verdict: One of the best foods for weight loss.

Why zucchini works:

• Extremely low calorie density
• High water content creates fullness
• Fiber adds satiety
• Versatile—replaces higher-calorie foods

Weight loss strategies:

• Replace pasta with zoodles (save 200 cal/cup)
• Add to stir-fries for volume
• Use in omelets to stretch eggs
• Roast as a side instead of potatoes
• Add to soups and stews

Meal volume comparison:

• 200 calories of pasta: 1 cup
• 200 calories of zucchini: 10 cups (!!)

Use our Macro Calculator to see how zucchini fits your goals.

Zucchini on Keto

Verdict: Perfect keto vegetable.

Per cup: Only 2.7g net carbs

Zucchini is among the most keto-friendly vegetables available.

Keto zucchini uses:

• Zoodles as pasta replacement
• Zucchini boats (stuffed with meat/cheese)
• Zucchini chips (thinly sliced, baked crispy)
• Zucchini fritters with cheese
• Roasted with olive oil and parmesan

Zucchini for Muscle Building

Verdict: Supportive but not a primary food.

Zucchini provides:

• Volume for meal satisfaction
• Nutrients supporting recovery
• Almost no calories “wasted” on side dishes

Bulking strategy: Use zucchini as a side dish to keep meals balanced while focusing calories on protein and calorie-dense foods.

Zucchini for IIFYM/Flexible Dieting

Zucchini is essentially a “free” food. Track it for completeness, but it barely impacts your macros.

Learn more in our Flexible Dieting Guide.

Ways to Prepare Zucchini

Raw Zucchini

Best uses:

• Thin slices for salads
• Spiralized for cold noodle dishes
• Sticks with hummus or dip
• Shaved into ribbons

Macros stay the same as cooked—no oil or fat added.

Sautéed Zucchini

1. Slice into half-moons
2. Heat olive oil in pan
3. Sauté 3-5 minutes until slightly golden
4. Season with salt, pepper, garlic

Per cup with 1 tsp oil: ~60 cal

Roasted Zucchini

1. Cut into chunks or spears
2. Toss with olive oil and seasonings
3. Roast at 425°F for 20-25 minutes
4. Until edges are golden and caramelized

Per cup with 1 tsp oil: ~60 cal

Roasting concentrates flavor and creates better texture than sautéing.

Grilled Zucchini

1. Slice lengthwise into planks
2. Brush with olive oil
3. Grill 3-4 minutes per side
4. Season with herbs

Per cup with 1 tsp oil: ~60 cal

Great summer side dish.

Zucchini Boats

1. Halve zucchini lengthwise
2. Scoop out center seeds
3. Fill with ground meat, cheese, or vegetables
4. Bake at 400°F for 25-30 minutes

Per boat (zucchini only): ~15 cal—add filling macros separately

Zucchini Bread

Zucchini bread is a baked good, not a vegetable dish. Macros vary wildly by recipe:

• Typical slice: 200-300 calories
• Carbs: 25-35g
• Not a low-carb option despite the vegetable

Raw vs Cooked Zucchini

Raw Zucchini

Benefit	Consideration
Maximum vitamin C	Crunchier texture
No added cooking fat	May be less palatable
Quick preparation	Larger volume

Cooked Zucchini

Benefit	Consideration
Reduced volume (easier to eat more)	Some vitamin C loss
Better texture for many dishes	Usually requires cooking fat
Softer, milder flavor	Takes time to prepare

Both are healthy. Choose based on the dish you’re making.

Zucchini Skin: Eat It or Peel It?

With Skin

• More fiber
• More nutrients
• Better texture (holds together)
• Faster prep

Without Skin

• Milder flavor
• Softer texture
• Personal preference

Recommendation: Eat with skin. No nutritional reason to peel, and it adds fiber. Just wash thoroughly.

Zucchini Meal Ideas

Low-Calorie Meals

Zucchini stir-fry (serves 1):

• 2 cups sliced zucchini: 42 cal
• 4 oz chicken breast: 180 cal
• 1 tbsp soy sauce: 10 cal
• 1 tsp sesame oil: 40 cal
• Garlic, ginger: 5 cal
• Total: 277 cal, 35g protein

Zucchini pizza bites:

• 1 medium zucchini, sliced: 33 cal
• Pizza sauce: 20 cal
• Mozzarella (1 oz): 85 cal
• Pepperoni (5 mini): 35 cal
• Total: 173 cal, satisfies pizza craving

Filling Side Dishes

Parmesan roasted zucchini:

• 2 cups zucchini: 42 cal
• 1 tbsp olive oil: 120 cal
• Parmesan (2 tbsp): 40 cal
• Total: 202 cal

Zucchini with herbs:

• 2 cups zucchini: 42 cal
• 1 tsp olive oil: 40 cal
• Fresh herbs, garlic: 5 cal
• Total: 87 cal

Volume Eating Examples

How much zucchini for different calorie budgets:

Calories	Amount of Zucchini
50	~2.5 cups
100	~5 cups
200	~10 cups

You’d struggle to eat 10 cups of zucchini. That’s the point—it fills you up before you can overeat.

Common Zucchini Questions

Can I Eat Zucchini Every Day?

Yes, absolutely. Zucchini is a healthy, low-calorie vegetable with no concerns for daily consumption. Variety in your diet is good, but there’s nothing wrong with eating zucchini daily.

Does Zucchini Have Any Protein?

About 1.5g per cup—negligible for protein goals but more than zero. Don’t count zucchini toward protein targets.

Why Does My Zucchini Get Watery?

Zucchini is 95% water. When cooked, it releases moisture.

To reduce wateriness:

• Salt and drain before cooking (zoodles especially)
• Don’t overcrowd the pan
• Cook at high heat
• Pat dry before sautéing

Is Bigger Zucchini Less Nutritious?

Not significantly. Larger zucchini may be slightly more watery and have larger seeds, but the nutritional difference is minimal. Choose size based on intended use.

Can I Freeze Zucchini?

Yes, but texture changes:

• Best for cooked dishes (soups, casseroles)
• Not ideal for zoodles (gets mushy)
• Blanch before freezing for best results

The Bottom Line on Zucchini Macros

The facts:

• 21 calories per cup raw—almost nothing
• 2.7g net carbs—very low carb
• 95% water—excellent for volume eating
• Versatile—raw, cooked, spiralized

Best uses:

• Pasta replacement (zoodles)
• Volume addition to any meal
• Low-calorie side dish
• Weight loss and keto diets
• Stretching calorie budgets

The math that matters:

• 1 cup zoodles: 20 calories
• 1 cup pasta: 220 calories
• Savings per swap: 200 calories

Bottom line: Zucchini is one of the most useful vegetables for macro tracking. It adds volume to meals, replaces higher-calorie foods, and is nearly free from a caloric perspective. If you’re trying to lose weight or eat more food on fewer calories, zucchini should be a regular part of your diet.

For understanding how zucchini fits into your overall nutrition picture, read What Are Macronutrients.