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Yam vs. Onion — In-Depth Nutrition Comparison

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The main differences between Yam and Onion

  • Onion contains less Potassium, Copper, Manganese, Fiber, Vitamin B6, and Vitamin C than Yam.
  • Daily need coverage for Potassium from Yam is 15% higher.
  • Onion has 4 times less Copper than Yam. Yam has 0.152mg of Copper, while Onion has 0.039mg.
  • Yam is lower in Sugar.

Food types used in this article are Yam, cooked, boiled, drained, or baked, without salt and Onions, raw.

Infographic

Yam vs Onion 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.
Yam
Yam
8
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 13% 4.2% 59% 20% 51% 5.5% 21% 1% 48% 3.8%
Onion
2
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%
Contains more MagnesiumMagnesium +80%
Contains more PotassiumPotassium +358.9%
Contains more IronIron +147.6%
Contains more CopperCopper +289.7%
Contains more ZincZinc +17.6%
Contains more PhosphorusPhosphorus +69%
Contains more ManganeseManganese +187.6%
Contains more SeleniumSelenium +40%
Contains more CalciumCalcium +64.3%
Contains less SodiumSodium -50%

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.
Yam
Yam
9
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 40% 7.3% 6.8% 0% 24% 6.5% 10% 19% 53% 0% 5.8% 12% 8.8%
Onion
1
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% 0.12% 0.4% 0% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14% 3.3%
Contains more Vitamin CVitamin C +63.5%
Contains more Vitamin AVitamin A +6000%
Contains more Vitamin EVitamin E +1600%
Contains more Vitamin B1Vitamin B1 +106.5%
Contains more Vitamin B3Vitamin B3 +375.9%
Contains more Vitamin B5Vitamin B5 +152.8%
Contains more Vitamin B6Vitamin B6 +90%
Contains more Vitamin KVitamin K +475%
Contains more CholineCholine +165.6%
Contains more FolateFolate +18.8%
~equal in Vitamin D ~0µg
~equal in Vitamin B2 ~0.027mg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Yam
Yam
4
27% 70%
Protein: 1.49 g
Fats: 0.14 g
Carbs: 27.48 g
Water: 70.13 g
Other: 0.76 g
Onion
1
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
Contains more ProteinProtein +35.5%
Contains more FatsFats +40%
Contains more CarbsCarbs +194.2%
Contains more OtherOther +117.1%
Contains more WaterWater +27.1%

Fat Type Comparison

Fat type breakdown side-by-side comparison
Yam
Yam
2
31% 5% 64%
Saturated Fat: Sat. Fat 0.029 g
Monounsaturated Fat: Mono. Fat 0.005 g
Polyunsaturated fat: Poly. Fat 0.06 g
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
Contains less Sat. FatSaturated Fat -31%
Contains more Poly. FatPolyunsaturated fat +252.9%
Contains more Mono. FatMonounsaturated Fat +160%

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Yam Onion Opinion
Calories 116kcal 40kcal Yam
Protein 1.49g 1.1g Yam
Fats 0.14g 0.1g Yam
Vitamin C 12.1mg 7.4mg Yam
Net carbs 23.58g 7.64g Yam
Carbs 27.48g 9.34g Yam
Magnesium 18mg 10mg Yam
Calcium 14mg 23mg Onion
Potassium 670mg 146mg Yam
Iron 0.52mg 0.21mg Yam
Sugar 0.49g 4.24g Yam
Fiber 3.9g 1.7g Yam
Copper 0.152mg 0.039mg Yam
Zinc 0.2mg 0.17mg Yam
Phosphorus 49mg 29mg Yam
Sodium 8mg 4mg Onion
Vitamin A 122IU 2IU Yam
Vitamin A 6µg 0µg Yam
Vitamin E 0.34mg 0.02mg Yam
Manganese 0.371mg 0.129mg Yam
Selenium 0.7µg 0.5µg Yam
Vitamin B1 0.095mg 0.046mg Yam
Vitamin B2 0.028mg 0.027mg Yam
Vitamin B3 0.552mg 0.116mg Yam
Vitamin B5 0.311mg 0.123mg Yam
Vitamin B6 0.228mg 0.12mg Yam
Vitamin K 2.3µg 0.4µg Yam
Folate 16µg 19µg Onion
Choline 16.2mg 6.1mg Yam
Saturated Fat 0.029g 0.042g Yam
Monounsaturated Fat 0.005g 0.013g Onion
Polyunsaturated fat 0.06g 0.017g Yam
Tryptophan 0.012mg 0.014mg Onion
Threonine 0.052mg 0.021mg Yam
Isoleucine 0.05mg 0.014mg Yam
Leucine 0.094mg 0.025mg Yam
Lysine 0.058mg 0.039mg Yam
Methionine 0.02mg 0.002mg Yam
Phenylalanine 0.069mg 0.025mg Yam
Valine 0.06mg 0.021mg Yam
Histidine 0.033mg 0.014mg Yam
Fructose 1.29g Onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Yam Onion
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
15%
Yam
8%
Onion
Minerals Daily Need Coverage Score
23%
Yam
8%
Onion

Comparison summary

Which food is lower in Sugar?
Yam
Yam is lower in Sugar (difference - 3.75g)
Which food is lower in Saturated Fat?
Yam
Yam is lower in Saturated Fat (difference - 0.013g)
Which food is richer in minerals?
Yam
Yam is relatively richer in minerals
Which food is richer in vitamins?
Yam
Yam is relatively richer in vitamins
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 4mg)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 36)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is cheaper?
?
The foods are relatively equal in price ($0.2)

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. Yam - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170072/nutrients
  2. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/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.