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Lemon vs. Onion — In-Depth Nutrition Comparison

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Important differences between lemons and onions

  • Lemons have more vitamin C than onions.
  • Lemons' daily need coverage for vitamin C is 51% more.
  • Lemons contain 2 times more fiber than onions. Lemons contain 2.8g of fiber, while onions contain 1.7g.
  • Lemons contain less sugar.

The food varieties used in the comparison are Lemons, raw, without peel and Onions, raw.

Infographic

Lemon 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.
Lemon
3
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 5.7% 7.8% 12% 23% 12% 1.6% 6.9% 0.26% 3.9% 2.2%
Onion
5
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 CalciumCalcium +13%
Contains more IronIron +185.7%
Contains less SodiumSodium -50%
Contains more MagnesiumMagnesium +25%
Contains more ZincZinc +183.3%
Contains more PhosphorusPhosphorus +81.3%
Contains more ManganeseManganese +330%
Contains more SeleniumSelenium +25%
~equal in Potassium ~146mg
~equal in Copper ~0.039mg

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.
Lemon
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 177% 0.33% 3% 0% 10% 4.6% 1.9% 11% 18% 0% 0% 8.3% 2.8%
Onion
7
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%
Contains more Vitamin CVitamin C +616.2%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +650%
Contains more Vitamin B5Vitamin B5 +54.5%
Contains more Vitamin B1Vitamin B1 +15%
Contains more Vitamin B2Vitamin B2 +35%
Contains more Vitamin B3Vitamin B3 +16%
Contains more Vitamin B6Vitamin B6 +50%
Contains more Vitamin KVitamin K +∞%
Contains more FolateFolate +72.7%
Contains more CholineCholine +19.6%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

All nutrients comparison - raw data values

Nutrient Lemon Onion DV% diff.
Vitamin C 53mg 7.4mg 51%
Iron 0.6mg 0.21mg 5%
Manganese 0.03mg 0.129mg 4%
Fiber 2.8g 1.7g 4%
Vitamin B6 0.08mg 0.12mg 3%
Fructose 1.29g 2%
Folate 11µg 19µg 2%
Phosphorus 16mg 29mg 2%
Zinc 0.06mg 0.17mg 1%
Vitamin B5 0.19mg 0.123mg 1%
Vitamin B2 0.02mg 0.027mg 1%
Vitamin E 0.15mg 0.02mg 1%
Calories 29kcal 40kcal 1%
Vitamin B1 0.04mg 0.046mg 1%
Protein 1.1g 1.1g 0%
Fats 0.3g 0.1g 0%
Carbs 9.32g 9.34g 0%
Net carbs 6.52g 7.64g N/A
Magnesium 8mg 10mg 0%
Calcium 26mg 23mg 0%
Potassium 138mg 146mg 0%
Sugar 2.5g 4.24g N/A
Copper 0.037mg 0.039mg 0%
Sodium 2mg 4mg 0%
Vitamin A 1µg 0µg 0%
Selenium 0.4µg 0.5µg 0%
Vitamin B3 0.1mg 0.116mg 0%
Vitamin K 0µg 0.4µg 0%
Choline 5.1mg 6.1mg 0%
Saturated fat 0.039g 0.042g 0%
Monounsaturated fat 0.011g 0.013g 0%
Polyunsaturated fat 0.089g 0.017g 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%

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Lemon
1
9% 89%
Protein: 1.1 g
Fats: 0.3 g
Carbs: 9.32 g
Water: 88.98 g
Other: 0.3 g
Onion
3
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
Contains more FatsFats +200%
Contains more OtherOther +16.7%
~equal in Protein ~1.1g
~equal in Carbs ~9.34g
~equal in Water ~89.11g

Fat Type Comparison

Fat type breakdown side-by-side comparison
Lemon
2
28% 8% 64%
Saturated fat: Sat. Fat 0.039 g
Monounsaturated fat: Mono. Fat 0.011 g
Polyunsaturated fat: Poly. Fat 0.089 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 more Poly. FatPolyunsaturated fat +423.5%
Contains more Mono. FatMonounsaturated fat +18.2%
~equal in Saturated fat ~0.042g

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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. Lemon - https://fdc.nal.usda.gov/fdc-app.html#/food-details/167746/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.