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Onion vs. Water chestnuts — In-Depth Nutrition Comparison

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Significant differences between onions and water chestnuts

  • The amount of copper, vitamin B6, vitamin B2, potassium, manganese, vitamin E, vitamin B1, vitamin B5, vitamin B3, and choline in water chestnuts is higher than in onions.
  • Water chestnuts cover your daily copper needs 32% more than onions.

Specific food types used in this comparison are Onions, raw and Waterchestnuts, chinese, (matai), raw.

Infographic

Onion vs Water chestnuts infographic
Infographic link

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.
Onion
3
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 7.1% 6.9% 13% 7.9% 13% 4.6% 12% 0.52% 17% 2.7%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 16% 3.3% 52% 2.3% 109% 14% 27% 1.8% 43% 3.8%
Contains more CalciumCalcium +109.1%
Contains more IronIron +250%
Contains less SodiumSodium -71.4%
Contains more MagnesiumMagnesium +120%
Contains more PotassiumPotassium +300%
Contains more CopperCopper +735.9%
Contains more ZincZinc +194.1%
Contains more PhosphorusPhosphorus +117.2%
Contains more ManganeseManganese +156.6%
Contains more SeleniumSelenium +40%

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.
Onion
3
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 25% 0% 0.4% 0% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14% 3.3%
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 13% 0% 24% 0% 35% 46% 19% 29% 76% 0% 0.75% 12% 20%
Contains more Vitamin CVitamin C +85%
Contains more Vitamin KVitamin K +33.3%
Contains more FolateFolate +18.8%
Contains more Vitamin EVitamin E +5900%
Contains more Vitamin B1Vitamin B1 +204.3%
Contains more Vitamin B2Vitamin B2 +640.7%
Contains more Vitamin B3Vitamin B3 +762.1%
Contains more Vitamin B5Vitamin B5 +289.4%
Contains more Vitamin B6Vitamin B6 +173.3%
Contains more CholineCholine +493.4%
~equal in Vitamin A ~0µg
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Onion
1
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
24% 73%
Protein: 1.4 g
Fats: 0.1 g
Carbs: 23.94 g
Water: 73.46 g
Other: 1.1 g
Contains more WaterWater +21.3%
Contains more ProteinProtein +27.3%
Contains more CarbsCarbs +156.3%
Contains more OtherOther +214.3%
~equal in Fats ~0.1g

Fat Type Comparison

Fat type breakdown side-by-side comparison
Onion
1
58% 18% 24%
Saturated fat: Sat. Fat 0.042 g
Monounsaturated fat: Mono. Fat 0.013 g
Polyunsaturated fat: Poly. Fat 0.017 g
37% 3% 61%
Saturated fat: Sat. Fat 0.026 g
Monounsaturated fat: Mono. Fat 0.002 g
Polyunsaturated fat: Poly. Fat 0.043 g
Contains more Mono. FatMonounsaturated fat +550%
Contains less Sat. FatSaturated fat -38.1%
Contains more Poly. FatPolyunsaturated fat +152.9%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Onion Water chestnuts
Lower in Saturated fat ok
Lower in Glycemic Index ok
Lower in price ok
Rich in minerals ok
Rich in vitamins ok
Lower in Sugar ok
Lower in Sodium ok
Lower in Cholesterol Equal

All nutrients comparison - raw data values

Nutrient Onion Water chestnuts DV% diff.
Copper 0.039mg 0.326mg 32%
Vitamin B6 0.12mg 0.328mg 16%
Vitamin B2 0.027mg 0.2mg 13%
Potassium 146mg 584mg 13%
Manganese 0.129mg 0.331mg 9%
Vitamin B1 0.046mg 0.14mg 8%
Vitamin E 0.02mg 1.2mg 8%
Vitamin B5 0.123mg 0.479mg 7%
Vitamin B3 0.116mg 1mg 6%
Phosphorus 29mg 63mg 5%
Choline 6.1mg 36.2mg 5%
Carbs 9.34g 23.94g 5%
Fiber 1.7g 3g 5%
Vitamin C 7.4mg 4mg 4%
Calories 40kcal 97kcal 3%
Zinc 0.17mg 0.5mg 3%
Magnesium 10mg 22mg 3%
Fructose 1.29g 2%
Iron 0.21mg 0.06mg 2%
Folate 19µg 16µg 1%
Protein 1.1g 1.4g 1%
Calcium 23mg 11mg 1%
Fats 0.1g 0.1g 0%
Net carbs 7.64g 20.94g N/A
Sugar 4.24g 4.8g N/A
Sodium 4mg 14mg 0%
Selenium 0.5µg 0.7µg 0%
Vitamin K 0.4µg 0.3µg 0%
Saturated fat 0.042g 0.026g 0%
Monounsaturated fat 0.013g 0.002g 0%
Polyunsaturated fat 0.017g 0.043g 0%
Tryptophan 0.014mg 0%
Threonine 0.021mg 0%
Isoleucine 0.014mg 0%
Leucine 0.025mg 0%
Lysine 0.039mg 0%
Methionine 0.002mg 0%
Phenylalanine 0.025mg 0%
Valine 0.021mg 0%
Histidine 0.014mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Water chestnuts
Low Calories diet ok
Low Fats diet Equal
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
8%
Onion
21%
Water chestnuts
Minerals Daily Need Coverage Score
8%
Onion
27%
Water chestnuts

Comparison summary

Which food is lower in Saturated fat?
Water chestnuts
Water chestnuts is lower in Saturated fat (difference - 0.016g)
Which food is lower in glycemic index?
Water chestnuts
Water chestnuts is lower in glycemic index (difference - 15)
Which food is cheaper?
Water chestnuts
Water chestnuts is cheaper (difference - $0.2)
Which food is richer in minerals?
Water chestnuts
Water chestnuts is relatively richer in minerals
Which food is richer in vitamins?
Water chestnuts
Water chestnuts is relatively richer in vitamins
Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 0.56g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 10mg)
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. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/nutrients
  2. Water chestnuts - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170066/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.