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Beetroot vs. Onion — In-Depth Nutrition Comparison

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Important differences between Beetroot and Onion

  • Beetroot has more Folate, Manganese, Iron, and Potassium than Onion.
  • Beetroot's daily need coverage for Folate is 23% more.
  • Beetroot contains 4 times more Iron than Onion. Beetroot contains 0.8mg of Iron, while Onion contains 0.21mg.
  • Onion contains less Sugar.

The food varieties used in the comparison are Beets, raw and Onions, raw.

Infographic

Beetroot 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.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 16% 4.8% 29% 30% 25% 9.5% 17% 10% 43% 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 +130%
Contains more PotassiumPotassium +122.6%
Contains more IronIron +281%
Contains more CopperCopper +92.3%
Contains more ZincZinc +105.9%
Contains more PhosphorusPhosphorus +37.9%
Contains more ManganeseManganese +155%
Contains more SeleniumSelenium +40%
Contains more CalciumCalcium +43.8%
Contains less SodiumSodium -94.9%

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 16% 2% 0.8% 0% 7.8% 9.2% 6.3% 9.3% 15% 0% 0.5% 82% 3.3%
Onion
4
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 AVitamin A +1550%
Contains more Vitamin EVitamin E +100%
Contains more Vitamin B2Vitamin B2 +48.1%
Contains more Vitamin B3Vitamin B3 +187.9%
Contains more Vitamin B5Vitamin B5 +26%
Contains more FolateFolate +473.7%
Contains more Vitamin CVitamin C +51%
Contains more Vitamin B1Vitamin B1 +48.4%
Contains more Vitamin B6Vitamin B6 +79.1%
Contains more Vitamin KVitamin K +100%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg
~equal in Choline ~6.1mg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
10% 88%
Protein: 1.61 g
Fats: 0.17 g
Carbs: 9.56 g
Water: 87.58 g
Other: 1.08 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 +46.4%
Contains more FatsFats +70%
Contains more OtherOther +208.6%
~equal in Carbs ~9.34g
~equal in Water ~89.11g

Fat Type Comparison

Fat type breakdown side-by-side comparison
23% 27% 50%
Saturated Fat: Sat. Fat 0.027 g
Monounsaturated Fat: Mono. Fat 0.032 g
Polyunsaturated fat: Poly. Fat 0.06 g
Onion
0
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 -35.7%
Contains more Mono. FatMonounsaturated Fat +146.2%
Contains more Poly. FatPolyunsaturated fat +252.9%

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Beetroot Onion Opinion
Calories 43kcal 40kcal Beetroot
Protein 1.61g 1.1g Beetroot
Fats 0.17g 0.1g Beetroot
Vitamin C 4.9mg 7.4mg Onion
Net carbs 6.76g 7.64g Onion
Carbs 9.56g 9.34g Beetroot
Magnesium 23mg 10mg Beetroot
Calcium 16mg 23mg Onion
Potassium 325mg 146mg Beetroot
Iron 0.8mg 0.21mg Beetroot
Sugar 6.76g 4.24g Onion
Fiber 2.8g 1.7g Beetroot
Copper 0.075mg 0.039mg Beetroot
Zinc 0.35mg 0.17mg Beetroot
Phosphorus 40mg 29mg Beetroot
Sodium 78mg 4mg Onion
Vitamin A 33IU 2IU Beetroot
Vitamin A 2µg 0µg Beetroot
Vitamin E 0.04mg 0.02mg Beetroot
Manganese 0.329mg 0.129mg Beetroot
Selenium 0.7µg 0.5µg Beetroot
Vitamin B1 0.031mg 0.046mg Onion
Vitamin B2 0.04mg 0.027mg Beetroot
Vitamin B3 0.334mg 0.116mg Beetroot
Vitamin B5 0.155mg 0.123mg Beetroot
Vitamin B6 0.067mg 0.12mg Onion
Vitamin K 0.2µg 0.4µg Onion
Folate 109µg 19µg Beetroot
Choline 6mg 6.1mg Onion
Saturated Fat 0.027g 0.042g Beetroot
Monounsaturated Fat 0.032g 0.013g Beetroot
Polyunsaturated fat 0.06g 0.017g Beetroot
Tryptophan 0.019mg 0.014mg Beetroot
Threonine 0.047mg 0.021mg Beetroot
Isoleucine 0.048mg 0.014mg Beetroot
Leucine 0.068mg 0.025mg Beetroot
Lysine 0.058mg 0.039mg Beetroot
Methionine 0.018mg 0.002mg Beetroot
Phenylalanine 0.046mg 0.025mg Beetroot
Valine 0.056mg 0.021mg Beetroot
Histidine 0.021mg 0.014mg Beetroot
Fructose 1.29g Onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Beetroot 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
12%
Beetroot
8%
Onion
Minerals Daily Need Coverage Score
19%
Beetroot
8%
Onion

Comparison summary

Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 2.52g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 74mg)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 49)
Which food is cheaper?
Onion
Onion is cheaper (difference - $0.3)
Which food is lower in Saturated Fat?
Beetroot
Beetroot is lower in Saturated Fat (difference - 0.015g)
Which food is richer in minerals?
Beetroot
Beetroot is relatively richer in minerals
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
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. Beetroot - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169145/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.