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Squash, summer, zucchini, includes skin, raw

Vegetables Per 100 g · Per 100g serving

Squash, summer, zucchini, includes skin, raw is a vegetable, providing very few calories (17.0 kcal per 100g). This vegetable is virtually fat-free. Vegetables provide essential vitamins, minerals, and dietary fiber with relatively few calories. They are a cornerstone of virtually every dietary guideline worldwide. Our database tracks 86 nutrients for this food, plus insulin index, environmental footprint data.

17.0
Calories
kcal
1.2
Protein
g
0.32
Fat
g
3.1
Carbs
g
1.0
Fiber
g

Top Nutrients

☀️
Vitamin A (RAE)
200 µg
22% DV
☀️
Vitamin C
17.9 mg
20% DV
☀️
Vitamin B6
0.16 mg
12% DV

Data for 86 of 150 tracked nutrients

Nutrient Fingerprint

How this food scores across key nutrient categories, as a percentage of the daily recommended value per 100 g. Based on USDA DRIs for adults.

Complete Nutrient Profile

Macronutrients 10
NutrientPer 100gUnitPer Serving% DV
Water SR94.8g
3%
Calories SR17.0kcal
Energy (kJ) SR70.0kj
Protein SR1.2g
2%
Total Fat SR0.32g
Carbohydrate SR3.1g
2%
Fiber SR1.0g
3%
Total Sugars SR2.5g
Starch SR0g
Ash SR0.58g
Minerals 10
NutrientPer 100gUnitPer Serving% DV
Calcium SR16.0mg
2%
Iron SR0.37mg
5%
Magnesium SR18.0mg
4%
Phosphorus SR38.0mg
5%
Potassium SR261mg
8%
Sodium SR8.0mg
0%
Zinc SR0.32mg
3%
Copper SR0.05mg
6%
Manganese SR0.18mg
8%
Selenium SR0.20µg
0%
Vitamins 24
NutrientPer 100gUnitPer Serving% DV
Vitamin A (RAE) SR200µg
22%
Vitamin A (IU) SR10.0IU
Retinol SR0µg
Beta-Carotene SR120µg
Alpha-Carotene SR0µg
Beta-Cryptoxanthin SR0µg
Lycopene SR0µg
Lutein + Zeaxanthin SR2,125µg
Vitamin C SR17.9mg
20%
Vitamin D SR0µg
Vitamin D (IU) SR0IU
Vitamin E SR0.12mg
1%
Vitamin K1 SR4.3µg
4%
Thiamin (B1) SR0.04mg
4%
Riboflavin (B2) SR0.09mg
7%
Niacin (B3) SR0.45mg
3%
Pantothenic Acid (B5) SR0.20mg
4%
Vitamin B6 SR0.16mg
12%
Folate SR24.0µg
6%
Folic Acid SR0µg
Folate (food) SR24.0µg
Folate (DFE) SR24.0µg
Vitamin B12 SR0µg
Choline SR9.5mg
2%
Fatty Acids 9
NutrientPer 100gUnitPer Serving% DV
Saturated Fat SR0.08g
Monounsaturated Fat SR0.01g
Polyunsaturated Fat SR0.09g
Trans Fat SR0g
Cholesterol SR0mg
Omega-3 ALA SR0.06g
4%
Omega-3 EPA SR0g
Omega-3 DPA SR0g
Omega-3 DHA SR0g
Individual Fatty Acids 12
NutrientPer 100gUnitPer Serving% DV
Butyric Acid (4:0) SR0g
Caproic Acid (6:0) SR0g
Caprylic Acid (8:0) SR0g
Capric Acid (10:0) SR0.02g
Lauric Acid (12:0) SR0.003g
Myristic Acid (14:0) SR0.001g
Palmitic Acid (16:0) SR0.05g
Stearic Acid (18:0) SR0.006g
Linoleic Acid (18:2) SR0.03g
0%
Omega-6 LA SR0.03g
Omega-6 GLA SR0g
Linolenic Acid (18:3) SR0.06g
Amino Acids 18
NutrientPer 100gUnitPer Serving% DV
Tryptophan SR0.01g
Threonine SR0.03g
Isoleucine SR0.04g
Leucine SR0.07g
Lysine SR0.07g
Methionine SR0.02g
Cystine SR0.01g
Phenylalanine SR0.04g
Tyrosine SR0.03g
Valine SR0.05g
Arginine SR0.05g
Histidine SR0.03g
Alanine SR0.06g
Aspartic Acid SR0.15g
Glutamic Acid SR0.13g
Glycine SR0.05g
Proline SR0.04g
Serine SR0.05g
Other 3
NutrientPer 100gUnitPer Serving% DV
Caffeine SR0mg
Theobromine SR0mg
Alcohol SR0g

Nutrient Density Score

The NRF9.3 score measures overall nutritional quality per 100 kcal. It rewards 9 nutrients to encourage (protein, fiber, vitamins A, C, E, calcium, iron, magnesium, potassium) and penalizes 3 to limit (saturated fat, added sugars, sodium). Higher is better; negative scores indicate the food is high in limit nutrients relative to its beneficial content.

313
NRF9.3 Score
Excellent · per 100 kcal
Poor (<0) Moderate Good Excellent (100+)

NRF9.3 index: Fulgoni et al. (2009), J Nutr 139(8). DVs based on FDA 2020 reference values.

Nutrient Interactions in This Food

Nutrients in this food that enhance or compete with each other during absorption.

✔ Synergies — nutrients that help each other

Dietary Fat + Vitamin A●●●

Vitamin A is fat-soluble and requires dietary fat for absorption. Adding fat to a meal significantly increases beta-carotene and retinol absorption.

Ribaya-Mercado et al., Am J Clin Nutr, 2007

Vitamin B6 + Folate●●

Vitamin B6 is a cofactor in folate-dependent one-carbon metabolism. Together with B12, these three nutrients regulate homocysteine levels.

Selhub, J Nutr Health Aging, 2002

⚠ Antagonisms — nutrients that compete

Vitamin C vs Copper●●

High-dose vitamin C (>1,500 mg/day) may reduce copper absorption by reducing Cu²⁺ to Cu⁺, though the clinical significance at normal intakes is minimal.

Harris, Am J Clin Nutr, 2003

Amino Acid Profile

Essential amino acid composition compared to the WHO/FAO adult reference pattern. The Amino Acid Score indicates protein quality — 100 means all essential amino acid requirements are met.

99
Amino Acid Score
Good
Leucine
Limiting Amino Acid
18
Amino Acids Tracked

Tip: The limiting amino acid is Leucine. Pair with dairy, eggs, and meat for a complete amino acid profile.

All Amino Acids (18)
Amino Acidg / 100gmg / g protein
Tryptophan0.018.3
Threonine0.0324.0
Isoleucine0.0436.4
Leucine0.0758.7
Lysine0.0755.4
Methionine0.0214.9
Cystine0.019.9
Phenylalanine0.0435.5
Tyrosine0.0326.4
Valine0.0544.6
Arginine0.0542.1
Histidine0.0321.5
Alanine0.0652.1
Aspartic Acid0.15121.5
Glutamic Acid0.13106.6
Glycine0.0538.0
Proline0.0430.6
Serine0.0540.5

How Cooking Changes Nutrients

Estimated percentage of each nutrient retained after cooking, based on USDA retention factors for the “Other Vegetables” food category. Values of 100% mean no loss; lower values indicate nutrients lost to heat, water, or oxidation.

Key insights
Folate loses up to 31% when boiled (drained). Boiled (water used) retains 85%.
Choline loses up to 10% when fried. Boiled (drained) retains 100%.

Source: USDA Table of Nutrient Retention Factors, Release 6 (2007). Retention values are category-level averages — actual retention depends on cooking time, temperature, and water volume.

USDA Retention Factors

Insulin Response

The Insulin Index (II) measures the actual insulin response to food on a scale where white bread = 100. Unlike the Glycemic Index (which only measures blood sugar), the II captures the full hormonal response — including the effect of protein and fat on insulin secretion. This is why high-protein foods like meat and dairy can have significant insulin scores despite having low or zero GI values.

61
Insulin Index
High Insulin Response
Insulin Index Scale 61
0 Low ≤30 Mod ≤60 High ≤100 120
Macro Model ●● Estimated from macronutrient composition (R²=0.49)

Source: Holt et al. 1997; Bao et al. 2016; Bell 2014

Environmental Impact

Environmental footprint per kilogram of food produced. Data represents the global average for the “Other Vegetables” category.

0.53
kg CO₂e / kg
Very Low Impact
0.37
m² land / kg
Land Use
103
L water / kg
Water Use
3.2
g SO₂e / kg
Acidification
How this compares (GHG emissions)
Potatoes (0.5)Chicken (9.9)Beef (99.5)
Greenhouse Gas Emissions0.53 kg CO₂e / kg
Land Use0.37 m² / kg
Water Use103 L / kg
Eutrophication4.9 g PO₄e / kg
Acidification3.2 g SO₂e / kg
⚠️ Important context about this data
  • Global averages: These figures are production-weighted averages from a meta-analysis of ~38,700 farms across 119 countries (Poore & Nemecek, 2018). Actual impact varies enormously by farming method, geography, and supply chain.
  • System boundary: Cradle-to-retail only — does not include consumer transport, home cooking energy, or food waste.
  • Soil carbon not included: This data does not account for soil carbon sequestration. Some argue that well-managed regenerative grazing partially offsets ruminant emissions; however, full lifecycle accounting — including methane, land-use change, and the opportunity cost of using land for grazing vs. reforestation — typically makes the net footprint of ruminant meat higher, not lower. This is especially relevant in temperate grassland regions like Ireland.
  • Not gospel: This data is informational and illustrative. It is useful for understanding relative magnitudes, but should not be treated as precise measurements for any individual product or farm.

Source: Poore & Nemecek (2018), Science 360(6392). Meta-analysis of ~38,700 farms, 119 countries, 46 product categories.

Global Supply: Vegetables

Top 10 countries by per capita supply of the “Vegetables” food group (kcal/capita/day, 2023). This is food group–level data from FAO Food Balance Sheets, not specific to this individual food.

1.
China; mainland
310
2.
China
306
3.
Albania
258
4.
North Macedonia
221
5.
Guyana
209
6.
Kazakhstan
204
7.
Oman
192
8.
Uzbekistan
190
9.
Tajikistan
186
10.
Bosnia and Herzegovina
183

Global Supply Trend (1961–2023)

+76%
1961: 38 kcal2023: 67 kcal

Source: FAO Food Balance Sheets (2023). Supply = production + imports − exports − waste, converted to kcal/capita/day.

Frequently Asked Questions

How many calories are in Squash, summer, zucchini, includes skin, raw?

Squash, summer, zucchini, includes skin, raw contains 17.0 kcal per 100 grams, making it a very low-calorie food. The energy comes from 1.2g of protein (28% of calories), 0.32g of fat (17%), and 3.1g of carbohydrates (73%). Carbohydrates are the primary energy source.

What is Squash, summer, zucchini, includes skin, raw most nutritious for?

The standout nutrient in Squash, summer, zucchini, includes skin, raw is Vitamin A (RAE), providing 200 µg per 100g (22% of the Daily Value). It is also a notable source of Vitamin C (20% DV). Our database tracks 86 individual nutrients for this food, allowing detailed comparison across vitamins, minerals, amino acids, and fatty acids.

Is Squash, summer, zucchini, includes skin, raw high in protein?

At 1.2g per 100 grams, Squash, summer, zucchini, includes skin, raw is not a significant source of protein. Pair with protein-rich foods like legumes, meat, fish, or dairy to meet daily protein needs.

How much fiber is in Squash, summer, zucchini, includes skin, raw?

Squash, summer, zucchini, includes skin, raw contains 1.0g of fiber per 100 grams, which is a small amount. To increase fiber intake, consider pairing with high-fiber foods such as legumes, whole grains, or vegetables.

What is the insulin index of Squash, summer, zucchini, includes skin, raw?

Squash, summer, zucchini, includes skin, raw has a high insulin response (II: 61) (estimated from macronutrient composition) on the insulin index scale (white bread = 100). Foods with high insulin scores stimulate significant insulin release, which may be relevant for blood sugar management. Note that the insulin index can differ substantially from the glycemic index — dairy products and high-protein foods often have higher insulin responses than their GI would suggest.