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Onion vs. Soy sauce — In-Depth Nutrition Comparison

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A recap on differences between onions and soy sauce

  • Onions have more vitamin C; however, soy sauce is higher in manganese, phosphorus, iron, magnesium, vitamin B3, vitamin B2, potassium, and zinc.
  • Soy sauce covers your daily sodium needs 239% more than onions.
  • Onions have less sodium.

Food varieties used in this article are Onions, raw and Soy sauce made from soy and wheat (shoyu).

Infographic

Onion vs Soy sauce 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.
Onion
1
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 53% 9.9% 38% 54% 14% 24% 71% 716% 133% 2.7%
Contains less SodiumSodium -99.9%
Contains more MagnesiumMagnesium +640%
Contains more CalciumCalcium +43.5%
Contains more PotassiumPotassium +197.9%
Contains more IronIron +590.5%
Contains more CopperCopper +10.3%
Contains more ZincZinc +411.8%
Contains more PhosphorusPhosphorus +472.4%
Contains more ManganeseManganese +689.1%
~equal in Selenium ~0.5µg

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
5
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 0% 0% 0% 0% 8.3% 38% 41% 18% 34% 0% 0% 11% 10%
Contains more Vitamin CVitamin C +∞%
Contains more Vitamin EVitamin E +∞%
Contains more Vitamin B1Vitamin B1 +39.4%
Contains more Vitamin KVitamin K +∞%
Contains more FolateFolate +35.7%
Contains more Vitamin B2Vitamin B2 +511.1%
Contains more Vitamin B3Vitamin B3 +1793.1%
Contains more Vitamin B5Vitamin B5 +141.5%
Contains more Vitamin B6Vitamin B6 +23.3%
Contains more CholineCholine +200%
~equal in Vitamin A ~0µg
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Onion
2
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
8% 5% 71% 15%
Protein: 8.14 g
Fats: 0.57 g
Carbs: 4.93 g
Water: 71.15 g
Other: 15.21 g
Contains more CarbsCarbs +89.5%
Contains more WaterWater +25.2%
Contains more ProteinProtein +640%
Contains more FatsFats +470%
Contains more OtherOther +4245.7%

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
17% 21% 62%
Saturated fat: Sat. Fat 0.073 g
Monounsaturated fat: Mono. Fat 0.088 g
Polyunsaturated fat: Poly. Fat 0.263 g
Contains less Sat. FatSaturated fat -42.5%
Contains more Mono. FatMonounsaturated fat +576.9%
Contains more Poly. FatPolyunsaturated fat +1447.1%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Onion
3
23% 46% 30%
Starch: 0 g
Sucrose: 0.99 g
Glucose: 1.97 g
Fructose: 1.29 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
25% 75%
Starch: 0 g
Sucrose: 0.1 g
Glucose: 0.3 g
Fructose: 0 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
Contains more SucroseSucrose +890%
Contains more GlucoseGlucose +556.7%
Contains more FructoseFructose +∞%
~equal in Starch ~0g
~equal in Lactose ~0g
~equal in Maltose ~0g
~equal in Galactose ~0g

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Onion Soy sauce DV% diff.
Sodium 4mg 5493mg 239%
Manganese 0.129mg 1.018mg 39%
Phosphorus 29mg 166mg 20%
Iron 0.21mg 1.45mg 16%
Magnesium 10mg 74mg 15%
Protein 1.1g 8.14g 14%
Vitamin B3 0.116mg 2.196mg 13%
Vitamin B2 0.027mg 0.165mg 11%
Potassium 146mg 435mg 9%
Vitamin C 7.4mg 0mg 8%
Zinc 0.17mg 0.87mg 6%
Fiber 1.7g 0.8g 4%
Vitamin B5 0.123mg 0.297mg 3%
Polyunsaturated fat 0.017g 0.263g 2%
Choline 6.1mg 18.3mg 2%
Vitamin B6 0.12mg 0.148mg 2%
Fructose 1.29g 0g 2%
Calories 40kcal 53kcal 1%
Vitamin B1 0.046mg 0.033mg 1%
Calcium 23mg 33mg 1%
Carbs 9.34g 4.93g 1%
Fats 0.1g 0.57g 1%
Folate 19µg 14µg 1%
Net carbs 7.64g 4.13g N/A
Sugar 4.24g 0.4g N/A
Copper 0.039mg 0.043mg 0%
Vitamin E 0.02mg 0mg 0%
Selenium 0.5µg 0.5µg 0%
Vitamin K 0.4µg 0µg 0%
Saturated fat 0.042g 0.073g 0%
Monounsaturated fat 0.013g 0.088g 0%
Tryptophan 0.014mg 0.096mg 0%
Threonine 0.021mg 0.271mg 0%
Isoleucine 0.014mg 0.318mg 0%
Leucine 0.025mg 0.537mg 0%
Lysine 0.039mg 0.381mg 0%
Methionine 0.002mg 0.097mg 0%
Phenylalanine 0.025mg 0.353mg 0%
Valine 0.021mg 0.332mg 0%
Histidine 0.014mg 0.174mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Soy sauce
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet Equal

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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
12%
Soy sauce
Minerals Daily Need Coverage Score
8%
Onion
112%
Soy sauce

Comparison summary

Which food is richer in minerals?
Soy sauce
Soy sauce is relatively richer in minerals
Which food is lower in Sugar?
Soy sauce
Soy sauce is lower in Sugar (difference - 3.84g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 5489mg)
Which food is lower in Saturated fat?
Onion
Onion is lower in Saturated fat (difference - 0.031g)
Which food is cheaper?
Onion
Onion is cheaper (difference - $3.2)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes (15)
Which food is richer in vitamins?
?
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

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. Soy sauce - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174277/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.