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Watermelon vs. Cowpea (Black-eyed pea) — In-Depth Nutrition Comparison

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How are watermelon and cowpea (Black-eyed pea) different?

  • Watermelon is higher in vitamin A; however, cowpea (Black-eyed pea) is richer in folate, iron, copper, fiber, phosphorus, manganese, vitamin B1, zinc, and magnesium.
  • Daily need coverage for folate for cowpea (Black-eyed pea) is 51% higher.
  • Watermelon contains 38 times more vitamin A than cowpea (Black-eyed pea). While watermelon contains 569IU of vitamin A, cowpea (Black-eyed pea) contains only 15IU.
  • Cowpea (Black-eyed pea) has a lower glycemic index (52) than watermelon (76).

Watermelon, raw and Cowpeas, common (blackeyes, crowder, southern), mature seeds, cooked, boiled, without salt are the varieties used in this article.

Infographic

Watermelon vs Cowpea (Black-eyed pea) infographic
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Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 7.1% 2.1% 9.9% 9% 14% 2.7% 4.7% 0.13% 5% 2.2%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 38% 7.2% 25% 94% 89% 35% 67% 0.52% 62% 14%
Contains less SodiumSodium -75%
Contains more MagnesiumMagnesium +430%
Contains more CalciumCalcium +242.9%
Contains more PotassiumPotassium +148.2%
Contains more IronIron +945.8%
Contains more CopperCopper +538.1%
Contains more ZincZinc +1190%
Contains more PhosphorusPhosphorus +1318.2%
Contains more ManganeseManganese +1150%
Contains more SeleniumSelenium +525%

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 27% 9.3% 1% 0% 8.3% 4.8% 3.3% 13% 10% 0% 0.25% 2.3% 2.2%
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 1.3% 0.33% 5.6% 0% 51% 13% 9.3% 25% 23% 0% 4.3% 156% 18%
Contains more Vitamin CVitamin C +1925%
Contains more Vitamin AVitamin A +2700%
Contains more Vitamin EVitamin E +460%
Contains more Vitamin B1Vitamin B1 +512.1%
Contains more Vitamin B2Vitamin B2 +161.9%
Contains more Vitamin B3Vitamin B3 +178.1%
Contains more Vitamin B5Vitamin B5 +86%
Contains more Vitamin B6Vitamin B6 +122.2%
Contains more Vitamin KVitamin K +1600%
Contains more FolateFolate +6833.3%
Contains more CholineCholine +685.4%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
8% 91%
Protein: 0.61 g
Fats: 0.15 g
Carbs: 7.55 g
Water: 91.45 g
Other: 0.24 g
8% 21% 70%
Protein: 7.73 g
Fats: 0.53 g
Carbs: 20.76 g
Water: 70.04 g
Other: 0.94 g
Contains more WaterWater +30.6%
Contains more ProteinProtein +1167.2%
Contains more FatsFats +253.3%
Contains more CarbsCarbs +175%
Contains more OtherOther +291.7%

Fat Type Comparison

Fat type breakdown side-by-side comparison
16% 36% 49%
Saturated fat: Sat. Fat 0.016 g
Monounsaturated fat: Mono. Fat 0.037 g
Polyunsaturated fat: Poly. Fat 0.05 g
34% 11% 55%
Saturated fat: Sat. Fat 0.138 g
Monounsaturated fat: Mono. Fat 0.044 g
Polyunsaturated fat: Poly. Fat 0.225 g
Contains less Sat. FatSaturated fat -88.4%
Contains more Mono. FatMonounsaturated fat +18.9%
Contains more Poly. FatPolyunsaturated fat +350%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Watermelon Cowpea (Black-eyed pea)
Lower in Sodium ok
Lower in Saturated fat ok
Lower in price ok
Lower in Sugar ok
Lower in Glycemic Index ok
Rich in minerals ok
Rich in vitamins ok
Lower in Cholesterol Equal

All nutrients comparison - raw data values

Nutrient Watermelon Cowpea (Black-eyed pea) DV% diff.
Folate 3µg 208µg 51%
Iron 0.24mg 2.51mg 28%
Copper 0.042mg 0.268mg 25%
Fiber 0.4g 6.5g 24%
Phosphorus 11mg 156mg 21%
Manganese 0.038mg 0.475mg 19%
Vitamin B1 0.033mg 0.202mg 14%
Protein 0.61g 7.73g 14%
Zinc 0.1mg 1.29mg 11%
Magnesium 10mg 53mg 10%
Vitamin C 8.1mg 0.4mg 9%
Choline 4.1mg 32.2mg 5%
Potassium 112mg 278mg 5%
Vitamin B6 0.045mg 0.1mg 4%
Vitamin B5 0.221mg 0.411mg 4%
Selenium 0.4µg 2.5µg 4%
Calories 30kcal 116kcal 4%
Fructose 3.36g 4%
Carbs 7.55g 20.76g 4%
Vitamin A 28µg 1µg 3%
Vitamin B2 0.021mg 0.055mg 3%
Calcium 7mg 24mg 2%
Vitamin E 0.05mg 0.28mg 2%
Vitamin B3 0.178mg 0.495mg 2%
Vitamin K 0.1µg 1.7µg 1%
Fats 0.15g 0.53g 1%
Saturated fat 0.016g 0.138g 1%
Polyunsaturated fat 0.05g 0.225g 1%
Net carbs 7.15g 14.26g N/A
Sugar 6.2g 3.3g N/A
Sodium 1mg 4mg 0%
Monounsaturated fat 0.037g 0.044g 0%
Tryptophan 0.007mg 0.095mg 0%
Threonine 0.027mg 0.294mg 0%
Isoleucine 0.019mg 0.314mg 0%
Leucine 0.018mg 0.592mg 0%
Lysine 0.062mg 0.523mg 0%
Methionine 0.006mg 0.11mg 0%
Phenylalanine 0.015mg 0.451mg 0%
Valine 0.016mg 0.368mg 0%
Histidine 0.006mg 0.24mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Watermelon Cowpea (Black-eyed pea)
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet ok

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Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
6%
Watermelon
23%
Cowpea (Black-eyed pea)
Minerals Daily Need Coverage Score
6%
Watermelon
43%
Cowpea (Black-eyed pea)

Comparison summary

Which food contains less Sodium?
Watermelon
Watermelon contains less Sodium (difference - 3mg)
Which food is lower in Saturated fat?
Watermelon
Watermelon is lower in Saturated fat (difference - 0.122g)
Which food is cheaper?
Watermelon
Watermelon is cheaper (difference - $1.9)
Which food is lower in Sugar?
Cowpea (Black-eyed pea)
Cowpea (Black-eyed pea) is lower in Sugar (difference - 2.9g)
Which food is lower in glycemic index?
Cowpea (Black-eyed pea)
Cowpea (Black-eyed pea) is lower in glycemic index (difference - 24)
Which food is richer in minerals?
Cowpea (Black-eyed pea)
Cowpea (Black-eyed pea) is relatively richer in minerals
Which food is richer in vitamins?
Cowpea (Black-eyed pea)
Cowpea (Black-eyed pea) is relatively richer in vitamins
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)

References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Watermelon - https://fdc.nal.usda.gov/fdc-app.html#/food-details/167765/nutrients
  2. Cowpea (Black-eyed pea) - https://fdc.nal.usda.gov/fdc-app.html#/food-details/173759/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.