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Onion vs. Yam — In-Depth Nutrition Comparison

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Summary of differences between onions and yam

  • The amount of potassium, copper, vitamin B6, manganese, vitamin C, fiber, and vitamin B1 in yam is higher than in onions.
  • Yam covers your daily need for potassium, 20% more than onions.
  • Onions have a lower glycemic index. The glycemic index of onions is 15, while the glycemic index of yam is 51.

These are the specific foods used in this comparison Onions, raw and Yam, raw.

Infographic

Onion vs Yam 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
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%
Yam
Yam
8
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 15% 5.1% 72% 20% 59% 6.5% 24% 1.2% 52% 3.8%
Contains more CalciumCalcium +35.3%
Contains less SodiumSodium -55.6%
Contains more MagnesiumMagnesium +110%
Contains more PotassiumPotassium +458.9%
Contains more IronIron +157.1%
Contains more CopperCopper +356.4%
Contains more ZincZinc +41.2%
Contains more PhosphorusPhosphorus +89.7%
Contains more ManganeseManganese +207.8%
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
0
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%
Yam
Yam
11
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 57% 2.3% 7% 0% 28% 7.4% 10% 19% 68% 0% 5.8% 17% 9%
Contains more Vitamin CVitamin C +131.1%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +1650%
Contains more Vitamin B1Vitamin B1 +143.5%
Contains more Vitamin B2Vitamin B2 +18.5%
Contains more Vitamin B3Vitamin B3 +375.9%
Contains more Vitamin B5Vitamin B5 +155.3%
Contains more Vitamin B6Vitamin B6 +144.2%
Contains more Vitamin KVitamin K +475%
Contains more FolateFolate +21.1%
Contains more CholineCholine +170.5%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

All nutrients comparison - raw data values

Nutrient Onion Yam DV% diff.
Potassium 146mg 816mg 20%
Copper 0.039mg 0.178mg 15%
Vitamin B6 0.12mg 0.293mg 13%
Manganese 0.129mg 0.397mg 12%
Vitamin C 7.4mg 17.1mg 11%
Fiber 1.7g 4.1g 10%
Vitamin B1 0.046mg 0.112mg 6%
Carbs 9.34g 27.88g 6%
Vitamin B5 0.123mg 0.314mg 4%
Phosphorus 29mg 55mg 4%
Calories 40kcal 118kcal 4%
Iron 0.21mg 0.54mg 4%
Vitamin B3 0.116mg 0.552mg 3%
Magnesium 10mg 21mg 3%
Fructose 1.29g 2%
Choline 6.1mg 16.5mg 2%
Vitamin K 0.4µg 2.3µg 2%
Vitamin E 0.02mg 0.35mg 2%
Protein 1.1g 1.53g 1%
Folate 19µg 23µg 1%
Zinc 0.17mg 0.24mg 1%
Vitamin A 0µg 7µg 1%
Calcium 23mg 17mg 1%
Fats 0.1g 0.17g 0%
Net carbs 7.64g 23.78g N/A
Sugar 4.24g 0.5g N/A
Sodium 4mg 9mg 0%
Selenium 0.5µg 0.7µg 0%
Vitamin B2 0.027mg 0.032mg 0%
Saturated fat 0.042g 0.037g 0%
Monounsaturated fat 0.013g 0.006g 0%
Polyunsaturated fat 0.017g 0.076g 0%
Tryptophan 0.014mg 0.012mg 0%
Threonine 0.021mg 0.054mg 0%
Isoleucine 0.014mg 0.052mg 0%
Leucine 0.025mg 0.096mg 0%
Lysine 0.039mg 0.059mg 0%
Methionine 0.002mg 0.021mg 0%
Phenylalanine 0.025mg 0.071mg 0%
Valine 0.021mg 0.062mg 0%
Histidine 0.014mg 0.034mg 0%

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
Yam
Yam
4
28% 70%
Protein: 1.53 g
Fats: 0.17 g
Carbs: 27.88 g
Water: 69.6 g
Other: 0.82 g
Contains more WaterWater +28%
Contains more ProteinProtein +39.1%
Contains more FatsFats +70%
Contains more CarbsCarbs +198.5%
Contains more OtherOther +134.3%

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
Yam
Yam
2
31% 5% 64%
Saturated fat: Sat. Fat 0.037 g
Monounsaturated fat: Mono. Fat 0.006 g
Polyunsaturated fat: Poly. Fat 0.076 g
Contains more Mono. FatMonounsaturated fat +116.7%
Contains less Sat. FatSaturated fat -11.9%
Contains more Poly. FatPolyunsaturated fat +347.1%

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. Yam - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170071/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.