Zucchini
Zucchini is a low-calorie, water-rich summer squash providing vitamin C, potassium, and fiber with minimal metabolic burden—ideal for weight management and sustained energy in longevity-focused diets.
Nutrition · per ~85 g serving · ≈ ½ zucchini
- Vitamin C15.2 mg17% DV
- Vitamin B60.14 mg8% DV
- Folate20.4 mcg5% DV
- Manganese0.15 mg7% DV
- Potassium221.8 mg5% DV
- Lutein & Zeaxanthin~5.1 mg
- Inulin / Prebiotic fibre~2.5 g
Score · 89/100
Vitamins & minerals packed in relative to calories — the single biggest driver of the score.
How much protein it delivers, by absolute grams and per calorie.
Dietary fiber for gut health, satiety and steadier blood sugar.
Fat quality — unsaturated vs saturated, and trans-fat free.
Polyphenols, flavonoids and other beneficial plant compounds for this food group.
Low sugar with a high fiber-to-carb ratio scores best — gentler on blood sugar.
- Vitamin C20% DV
- Vitamin B69% DV
- Manganese8% DV
- Folate6% DV
- Potassium6% DV
Overview
Zucchini (Cucurbita pepo) originated in Mesoamerica but was developed into its modern form in Italy. This versatile vegetable is approximately 95% water, making it exceptionally low in calories while delivering meaningful micronutrients. Its nutritional profile supports cardiovascular health through potassium content (261 mg per 100g), which aids blood pressure regulation—a key marker for healthy aging. The vitamin C content (17.9 mg per 100g) supports collagen synthesis and antioxidant defense, while folate (24 mcg per 100g) contributes to homocysteine metabolism and methylation processes critical for DNA stability. Zucchini's modest fiber content promotes prebiotic-dependent gut microbiota health, which research increasingly links to longevity outcomes. The skin contains lutein and zeaxanthin—carotenoids with documented benefits for ocular health and cognitive function. When consumed raw or lightly cooked, zucchini preserves heat-sensitive nutrients. Its neutral flavor profile makes it a practical vehicle for nutrient-dense additions, and its high water content supports cellular hydration and detoxification processes. Regular consumption fits well within calorie-restricted or time-restricted eating protocols without nutritional compromise.
Health Benefits (5)
- Blood pressure regulation and cardiovascular supportstrongPotassium content (261 mg/100g) promotes sodium-potassium balance, reducing vascular tension and supporting healthy endothelial function
- Antioxidant defense and collagen synthesisstrongVitamin C (17.9 mg/100g) neutralizes reactive oxygen species and stabilizes prolyl and lysyl hydroxylase for collagen cross-linking
- Gut microbiota support and metabolic healthmoderateSoluble fiber and polysaccharides function as prebiotics, nourishing beneficial bacteria and improving short-chain fatty acid production
- Ocular and cognitive health preservationmoderateLutein and zeaxanthin in skin accumulate in the macula and hippocampus, filtering blue light and protecting neuronal function
- Weight management and metabolic flexibilitymoderateExtreme caloric density (17 kcal/100g) with satiety-inducing fiber allows high-volume consumption without metabolic burden
Food Pairings
- ·Pair with olive oil (2-3 tsp per serving) because fat-soluble carotenoids (lutein, zeaxanthin, β-carotene) in skin require lipid co-ingestion for optimal absorption
- ·Combine with sulfur-rich alliums (garlic, onions) to enhance phase II detoxification enzyme activation through synergistic polyphenol and organosulfur interactions
- ·Pair with tomatoes (both containing lycopene) because lycopene bioavailability increases 3-4x when combined with cooked tomatoes and fat
- ·Combine with herbs high in phenolics (basil, oregano, thyme) to amplify antioxidant capacity and extend polyphenol half-life in circulation
- ·Pair with legumes (lentils, chickpeas) to create a complete amino acid profile and enhance fiber fermentation for microbiota diversity
Practical Tips
- ·Consume skin-on to maximize lutein, zeaxanthin, and fiber intake; light steaming (3-4 min) preserves heat-sensitive vitamin C better than extended cooking
- ·Select smaller, firmer zucchini (6-8 inches) as larger specimens accumulate more seeds and develop watery, less nutrient-dense flesh
- ·Store at 5°C (41°F) in ventilated containers for up to 7 days; plastic wrapping promotes mold growth by trapping moisture
- ·Blanch and freeze in portions to preserve enzymatic activity better than raw storage; frozen zucchini retains ~90% of original vitamin C after 3 months
- ·Spiral or ribbon raw zucchini to create low-glycemic pasta alternatives; combine with protein and fat to prevent rapid glucose spikes
Optimal Timing
Zucchini's low glycemic load and negligible fructose content make it suitable for any meal or eating window. Evening consumption provides prebiotic fiber for overnight microbiota fermentation, while midday inclusion supports sustained satiety without energy crashes.
Raw zucchini is fasting-compatible due to negligible caloric and insulinemic impact. During eating windows, pair with fat/protein to delay gastric emptying and support nutrient absorption.
Systems supported
body systems this food feedsPathways supported
biochemical reactions enabled by this foodCompared to other vegetables
Per 100 g of the default form. Bars show how much higher or lower zucchini is than the average across 137 peer foods in this category. Green means a favorable direction; amber means the opposite.
What people ask about zucchini
What is zucchini?
Zucchini is classified as a squash (vegetable). Zucchini is a low-calorie, water-rich summer squash providing vitamin C, potassium, and fiber with minimal metabolic burden—ideal for weight management and sustained energy in longevity-focused diets.
Is zucchini healthy?
Zucchini scores 89/100 in Formulate, making it a great choice. Its strongest contributions come from Vitamin C, Vitamin B6, Manganese. The score blends nutrient density, fiber, healthy fats, protein quality, bioactive compounds, and glycemic impact.
Is zucchini high in protein?
Not particularly. A 85 g serving provides about 1 g of protein (~2% of the 50 g daily value).
Is zucchini high in fiber?
Not really. A 85 g serving provides about 0.9 g of fiber (~3% of the 28 g daily value).
What vitamins and minerals are in zucchini?
In a 85 g serving, zucchini is highest in Vitamin C (~17% DV).
Is zucchini keto-friendly?
Yes — it fits comfortably in most keto plans. A 85 g serving has about 1.8 g of net carbs (2.6 g total minus 0.9 g fiber).
When is the best time to eat zucchini?
Best any time of day. Zucchini's low glycemic load and negligible fructose content make it suitable for any meal or eating window. Evening consumption provides prebiotic fiber for overnight microbiota fermentation, while midday inclusion supports sustained satiety without energy crashes.
How much zucchini should I eat?
A typical serving is around 85 g (~14 kcal), based on the FDA's Reference Amount Customarily Consumed for this food category. There's no fixed daily target — most adults benefit from rotating zucchini alongside several other vegetable sources.
What pairs well with zucchini?
Zucchini pairs nicely with: Pair with olive oil (2-3 tsp per serving) because fat-soluble carotenoids (lutein, zeaxanthin, β-carotene) in skin require lipid co-ingestion for optimal absorption; Combine with sulfur-rich alliums (garlic, onions) to enhance phase II detoxification enzyme activation through synergistic polyphenol and organosulfur interactions; Pair with tomatoes (both containing lycopene) because lycopene bioavailability increases 3-4x when combined with cooked tomatoes and fat; Combine with herbs high in phenolics (basil, oregano, thyme) to amplify antioxidant capacity and extend polyphenol half-life in circulation.
Supplements that mirror Zucchini's nutrient profile
Encyclopedia entries that supply the same signature nutrients zucchini contributes. Click through to see clinical dose ranges, evidence quality, and bioavailable forms.
Signature nutrients in Zucchini
These are the nutrients zucchinicontributes meaningfully toward (≥10% DV per 100 g serving). Click one to see what it does in the body, which supplements concentrate it, and which other foods are top sources.