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Cucumber vs Eggplant - Health impact and Nutrition Comparison

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Article author photo Elen Khachatrian by Elen Khachatrian | Last updated on June 10, 2022
Education: Nutrition & Microbiology at YSU
Cucumber
vs
Eggplant

Summary

Eggplant contains more Vitamin E, Vitamin B3, Vitamin B6, folate, potassium, and copper than cucumber. Eggplant is also lower in saturated fat.

Cucumber contains higher amounts of calcium, iron, zinc, Vitamin A, Vitamin C, and Vitamin K. It is also lower in sugar and glycemic index.

Introduction

In this article, you can find a detailed description of the differences between eggplant and cucumber.

What's The Actual Difference?

Eggplant belongs to the Solanum genus, and cucumber belongs to the Cucumis genus. Eggplant is a dark purple or brownish-purple color, whereas regular cucumbers have green stripes on darker green skin.

Cucumbers are commonly green but can also be white, yellow, or orange. Cucumbers' flavor is all about their texture and water content; they are sweet and plumpy. Eggplant has a tender, mild, and sweet flavor.

Nutrition

Below you can find the nutrition infographics that visually show the differences between cucumber and eggplant. The food varieties discussed in this article are raw cucumber and raw eggplant.

Calories

Both cucumber and eggplant are low in calories. Cucumber contains 15 calories per 100g, whereas eggplant contains 25 calories per 100g. They both can be an excellent addition to low-calorie diets.

Fats

Both plants have fats of less than 1g. Cucumber contains 0.11g of fat, and the eggplant has 0.18g of fat. Due to their low-fat content, cucumber and eggplant can be added to the list of recommended foods for low-fat diets, such as The Paleo Diet and The Vegan Diet.

Carbs

Eggplant has two times more carbs than cucumber; however, the carbs content of both plants is shallow. Eggplant contains 5.88g of carbs per 100g, whereas cucumber contains 3.63g of carbs per 100g. Eggplant has 3g fiber and 2.88g net carbs. In addition, eggplant falls in the range of the top 27% of foods as a source of fiber.

Cucumber provides 0.5g of fiber and 3.13g of net carbs.

Both are considered low carbs foods.

Cholesterol

Both plants have no cholesterol.

Protein

Cucumber and eggplant have tiny and equal amounts of protein.

Vitamins

Eggplant contains nine times more Vitamin E and five times more Vitamin B3 than cucumber. Vitamin B1, Vitamin B2, Vitamin B6, and folate are also higher in eggplant.

On the other hand, cucumber contains more Vitamin A, Vitamin C, and Vitamin K.

Both eggplant and cucumber have an equal amount of Vitamin B5.

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" chart below show how much of the daily needs can be covered by 300 grams of the food
:
Contains more Vitamin A +356.5%
Contains more Vitamin C +27.3%
Contains more Vitamin K +368.6%
Contains more Vitamin E +900%
Contains more Vitamin B1 +44.4%
Contains more Vitamin B2 +12.1%
Contains more Vitamin B3 +562.2%
Contains more Vitamin B6 +110%
Contains more Folate +214.3%
Equal in Vitamin B5 - 0.281
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 7% 1% 0% 10% 7% 8% 2% 16% 10% 6% 0% 41%
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 2% 6% 0% 8% 10% 9% 13% 17% 20% 17% 0% 9%
Contains more Vitamin A +356.5%
Contains more Vitamin C +27.3%
Contains more Vitamin K +368.6%
Contains more Vitamin E +900%
Contains more Vitamin B1 +44.4%
Contains more Vitamin B2 +12.1%
Contains more Vitamin B3 +562.2%
Contains more Vitamin B6 +110%
Contains more Folate +214.3%
Equal in Vitamin B5 - 0.281

Minerals

Cucumber is relatively higher in calcium, zinc, and iron, whereas eggplant provides more potassium and copper.

Both plants have equal amounts of magnesium, phosphorus, and sodium.

Small mention: both plants are deficient in sodium: 2mg per 100g.

Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" chart below show how much of the daily needs can be covered by 300 grams of the food
Contains more Calcium +77.8%
Contains more Iron +21.7%
Contains more Zinc +25%
Contains more Potassium +55.8%
Contains more Copper +97.6%
Equal in Magnesium - 14
Equal in Phosphorus - 24
Equal in Sodium - 2
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 5% 11% 10% 11% 13% 1% 6% 14%
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 3% 9% 10% 11% 21% 1% 5% 27%
Contains more Calcium +77.8%
Contains more Iron +21.7%
Contains more Zinc +25%
Contains more Potassium +55.8%
Contains more Copper +97.6%
Equal in Magnesium - 14
Equal in Phosphorus - 24
Equal in Sodium - 2

Glycemic Index

Overall, vegetables are considered low glycemic index foods. However, the glycemic index of cucumber is a bit lower than that of eggplant.

Cucumber has a glycemic index of 21 and a glycemic load of 1.5.

Eggplant has a GI of 30 and a glycemic load of 1. This means that consumption of both plants will not raise your blood sugar levels.

Health Impact

Cardiovascular Health

Cucurbitacins are compounds found in cucumbers, which have both toxic and beneficial health effects. One of the advantages is that they can prevent or slow the progression of atherosclerosis by modifying lipoproteins. According to one study [1], cucumber lowers systolic and diastolic blood pressure in older people. The potential mechanism is due to its diuretic effect, which reduces circulating fluid in the bloodstream, reducing the workload on the heart.

For 30 days, animals were fed either raw or grilled eggplant in one study [2]. Both types improved heart function and reduced the severity of heart attacks. However, more research is needed to determine how eggplants affect human heart health.

Cancer

Research shows that cucurbitacins inhibit tumor cell growth and signaling pathways and cause cancer cells to die. Cucurbitacins have antitumor activity against lung, pancreatic, colon, breast, and cervical cancers [3]. Triterpenes and lignans isolated from cucumber have shown anticancer activity against liver cancer by inducing cancer cell death [4].

Solasodine rhamnosyl glycosides (SRGs) are compounds found in nightshade plants such as eggplant. SRGs have been shown in animal studies [5] to cause cancer cell death and may also help reduce the recurrence of certain types of cancer.

Diabetes

Eggplants are high in phenolic compounds, which according to research, may regulate carbohydrate metabolism in the body. This mechanism gives insulin more time to digest the carbohydrates, mostly from refined foods with little fiber or vitamin content [6].

Another study found that polyphenols can help lower blood sugar by reducing sugar absorption and increasing insulin secretion. Eating eggplant inhibits the enzyme that converts starch into blood sugar, making it one of the most effective foods for diabetes prevention [7].

Skin Health

Keeping your skin hydrated helps to improve elasticity and firmness. Lack of hydration can cause your skin to appear dry and flaky and more prone to fine lines and wrinkles. Cucumbers are high in polysaccharides, which can help to keep the skin elastic and healthy. Cucumbers are mostly water; in fact, they are 96 percent water. Cucumbers' high water content is a crucial benefit because it allows them to provide superior hydration to the skin [8].

Other Health Benefits

Cucumbers are high in water (96%), which may help to keep you hydrated. Dehydration is a significant risk factor for constipation because it can disrupt your water balance and make stool passage difficult. Staying hydrated can help with stool consistency, constipation prevention, and regularity. Cucumbers also contain fiber, which also aids in the regulation of bowel movements [9].

Animal studies [10] suggest that nasunin, an anthocyanin found in eggplant skin, may help protect brain cell membranes from free radical damage.

Anthocyanins also help to reduce neuroinflammation and increase blood flow to the brain. This may aid in preventing memory loss and other aspects of aging-related mental decline [11].

Side Effects

Allergy

Cucurbits have been linked to oral allergy syndrome (itching, burning, redness, and swelling of the lips), nausea, diarrhea, asthma, rhinitis, watery eyes, and contact urticaria. Eggplant belongs to a family of plants known as nightshades. People may more likely develop an eggplant allergy if allergic to other nightshades, including tomatoes, potatoes, or peppers.

Cucumbers and eggplants contain salicylate, so people who are allergic to Aspirin should avoid cucumbers, apples, almonds, oranges, berries, tomatoes, and other foods [12].

References

  1. https://stikbar.org/ycabpublisher/index.php/PHI/article/view/93
  2. https://pubmed.ncbi.nlm.nih.gov/21894326/
  3. https://cancerres.aacrjournals.org/content/69/14/5876
  4. https://www.nature.com/articles/srep36594
  5. https://pubmed.ncbi.nlm.nih.gov/22399274/
  6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2871121/
  7. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981492/
  8. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356561/
  9. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7987589/
  10. https://www.sciencedirect.com/science/article/abs/pii/S0300483X0000202X
  11. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613902/
  12. https://www.jstage.jst.go.jp/article/allergolint/64/1/64_S1323-8930-14-00013-6/_article/-char/ja/
Article author photo Elen Khachatrian
Education: Nutrition & Microbiology at YSU
Last updated: June 10, 2022

Infographic

Cucumber vs Eggplant infographic
Infographic link

Comparison summary table

Pay attention to the most right column. It shows the amounts side by side, making it easier to realize the amount of difference.
Cucumber Eggplant
Lower in Saturated Fat ok
Lower in price ok
Rich in vitamins ok
Lower in Sugar ok
Lower in glycemic index ok
Lower in Sodium Equal
Lower in Cholesterol Equal
Rich in minerals Equal

All nutrients comparison - raw data values

Nutrient Cucumber Eggplant Opinion
Net carbs 3.13g 2.88g Cucumber
Protein 0.65g 0.98g Eggplant
Fats 0.11g 0.18g Eggplant
Carbs 3.63g 5.88g Eggplant
Calories 15kcal 25kcal Eggplant
Starch 0.83g g Cucumber
Fructose 0.87g 1.54g Eggplant
Sugar 1.67g 3.53g Cucumber
Fiber 0.5g 3g Eggplant
Calcium 16mg 9mg Cucumber
Iron 0.28mg 0.23mg Cucumber
Magnesium 13mg 14mg Eggplant
Phosphorus 24mg 24mg
Potassium 147mg 229mg Eggplant
Sodium 2mg 2mg
Zinc 0.2mg 0.16mg Cucumber
Copper 0.041mg 0.081mg Eggplant
Vitamin A 105IU 23IU Cucumber
Vitamin E 0.03mg 0.3mg Eggplant
Vitamin D 0IU 0IU
Vitamin D 0µg 0µg
Vitamin C 2.8mg 2.2mg Cucumber
Vitamin B1 0.027mg 0.039mg Eggplant
Vitamin B2 0.033mg 0.037mg Eggplant
Vitamin B3 0.098mg 0.649mg Eggplant
Vitamin B5 0.259mg 0.281mg Eggplant
Vitamin B6 0.04mg 0.084mg Eggplant
Folate 7µg 22µg Eggplant
Vitamin B12 0µg 0µg
Vitamin K 16.4µg 3.5µg Cucumber
Tryptophan 0.005mg 0.009mg Eggplant
Threonine 0.019mg 0.037mg Eggplant
Isoleucine 0.021mg 0.045mg Eggplant
Leucine 0.029mg 0.064mg Eggplant
Lysine 0.029mg 0.047mg Eggplant
Methionine 0.006mg 0.011mg Eggplant
Phenylalanine 0.019mg 0.043mg Eggplant
Valine 0.022mg 0.053mg Eggplant
Histidine 0.01mg 0.023mg Eggplant
Cholesterol 0mg 0mg
Trans Fat 0g 0g
Saturated Fat 0.037g 0.034g Eggplant
Monounsaturated Fat 0.005g 0.016g Eggplant
Polyunsaturated fat 0.032g 0.076g Eggplant

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Cucumber Eggplant
Low Fats diet ok
Low Carbs diet ok
Low Calories diet ok
Low glycemic index diet ok

People also compare

Vitamin and Mineral Summary Scores

The summary score is calculated by summing up the daily values contained in 300 grams of the product. Obviously the more the food fulfills human daily needs, the more the summary score is.
Vitamin Summary Score
9
Cucumber
9
Eggplant
Mineral Summary Score
8
Cucumber
10
Eggplant

Macronutrients Comparison

Macronutrient comparison charts compare the amount of protein, total fats, and total carbohydrates in 300 grams of the food. The displayed values show how much of the daily needs can be covered by 300 grams of food.
Protein
4%
Cucumber
6%
Eggplant
Carbohydrates
4%
Cucumber
6%
Eggplant
Fats
1%
Cucumber
1%
Eggplant

Comparison summary

Which food is lower in Saturated Fat?
Eggplant
Eggplant is lower in Saturated Fat (difference - 0.003g)
Which food is cheaper?
Eggplant
Eggplant is cheaper (difference - $0.2)
Which food is richer in vitamins?
Eggplant
Eggplant is relatively richer in vitamins
Which food is lower in Sugar?
Cucumber
Cucumber is lower in Sugar (difference - 1.86g)
Which food is lower in glycemic index?
Cucumber
Cucumber is lower in glycemic index (difference - 9)
Which food contains less Sodium?
?
The foods are relatively equal in Sodium (2 mg)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is richer in minerals?
?
It cannot be stated which food is richer in vitamins. See the charts below for detailed information. See the charts below for detailed information. See the charts below for detailed information.

References

The source of all the nutrient values on the page (excluding the main article the sources for which are presented separately if present) is the USDA's FoodCentral. The exact links to the foods presented on this page can be found below.

  1. Cucumber - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168409/nutrients
  2. Eggplant - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169228/nutrients

All the Daily Values are presented for males aged 31-50, for 2000 calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.