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Onion vs Tomato juice - In-Depth Nutrition Comparison

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How are Onion and Tomato juice different?

  • Onion is richer in Fiber, while Tomato juice is higher in Vitamin C.
  • Tomato juice covers your daily need of Vitamin C 70% more than Onion.
  • Onion contains 4 times more Fiber than Tomato juice. Onion contains 1.7g of Fiber, while Tomato juice contains 0.4g.
  • Tomato juice is lower in Sugar.

Onions, raw and Tomato juice, canned, without salt added types were used in this article.

Infographic

Onion vs Tomato juice 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" chart below show how much of the daily needs can be covered by 300 grams of the food
Contains more Calcium +130%
Contains more Phosphorus +52.6%
Contains less Sodium -60%
Contains more Zinc +54.5%
Contains more Iron +85.7%
Contains more Potassium +48.6%
Equal in Magnesium - 11
Equal in Copper - 0.042
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 7% 8% 8% 13% 13% 1% 5% 14%
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 3% 15% 8% 9% 20% 2% 3% 14%
Contains more Calcium +130%
Contains more Phosphorus +52.6%
Contains less Sodium -60%
Contains more Zinc +54.5%
Contains more Iron +85.7%
Contains more Potassium +48.6%
Equal in Magnesium - 11
Equal in Copper - 0.042

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" chart below show how much of the daily needs can be covered by 300 grams of the food
Onion
2
:
Contains more Vitamin B6 +71.4%
Contains more Vitamin A +22400%
Contains more Vitamin E +1500%
Contains more Vitamin C +847.3%
Contains more Vitamin B1 +117.4%
Contains more Vitamin B2 +188.9%
Contains more Vitamin B3 +480.2%
Contains more Vitamin K +475%
Equal in Folate - 20
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 1% 1% 0% 25% 12% 7% 3% 8% 28% 15% 0% 1%
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 27% 7% 0% 234% 25% 18% 13% 0% 17% 15% 0% 6%
Contains more Vitamin B6 +71.4%
Contains more Vitamin A +22400%
Contains more Vitamin E +1500%
Contains more Vitamin C +847.3%
Contains more Vitamin B1 +117.4%
Contains more Vitamin B2 +188.9%
Contains more Vitamin B3 +480.2%
Contains more Vitamin K +475%
Equal in Folate - 20

Comparison summary table

Pay attention to the most right column. It shows the amounts side by side, making it easier to realize the amount of difference.
Onion Tomato juice
Lower in Sugar ok
Lower in Saturated Fat ok
Lower in price ok
Rich in vitamins ok
Lower in Sodium ok
Lower in glycemic index ok
Lower in Cholesterol Equal
Rich in minerals Equal

All nutrients comparison - raw data values

Nutrient Onion Tomato juice Opinion
Net carbs 7.64g 3.13g Onion
Protein 1.1g 0.85g Onion
Fats 0.1g 0.29g Tomato juice
Carbs 9.34g 3.53g Onion
Calories 40kcal 17kcal Onion
Starch 0g g Onion
Fructose 1.29g 1.33g Tomato juice
Sugar 4.24g 2.58g Tomato juice
Fiber 1.7g 0.4g Onion
Calcium 23mg 10mg Onion
Iron 0.21mg 0.39mg Tomato juice
Magnesium 10mg 11mg Tomato juice
Phosphorus 29mg 19mg Onion
Potassium 146mg 217mg Tomato juice
Sodium 4mg 10mg Onion
Zinc 0.17mg 0.11mg Onion
Copper 0.039mg 0.042mg Tomato juice
Vitamin A 2IU 450IU Tomato juice
Vitamin E 0.02mg 0.32mg Tomato juice
Vitamin D 0IU 0IU
Vitamin D 0µg 0µg
Vitamin C 7.4mg 70.1mg Tomato juice
Vitamin B1 0.046mg 0.1mg Tomato juice
Vitamin B2 0.027mg 0.078mg Tomato juice
Vitamin B3 0.116mg 0.673mg Tomato juice
Vitamin B5 0.123mg mg Onion
Vitamin B6 0.12mg 0.07mg Onion
Folate 19µg 20µg Tomato juice
Vitamin B12 0µg 0µg
Vitamin K 0.4µg 2.3µg Tomato juice
Tryptophan 0.014mg 0.006mg Onion
Threonine 0.021mg 0.026mg Tomato juice
Isoleucine 0.014mg 0.017mg Tomato juice
Leucine 0.025mg 0.024mg Onion
Lysine 0.039mg 0.026mg Onion
Methionine 0.002mg 0.005mg Tomato juice
Phenylalanine 0.025mg 0.026mg Tomato juice
Valine 0.021mg 0.017mg Onion
Histidine 0.014mg 0.014mg
Cholesterol 0mg 0mg
Trans Fat 0g 0g
Saturated Fat 0.042g 0.019g Tomato juice
Monounsaturated Fat 0.013g 0.005g Onion
Polyunsaturated fat 0.017g 0.027g Tomato juice

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Tomato juice
Low Fats diet ok
Low Carbs diet ok
Low Calories diet ok
Low glycemic index diet ok

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Vitamin and Mineral Summary Scores

The summary score is calculated by summing up the daily values contained in 300 grams of the product. Obviously the more the food fulfills human daily needs, the more the summary score is.
Vitamin Summary Score
8
Onion
30
Tomato juice
Mineral Summary Score
8
Onion
9
Tomato juice

Macronutrients Comparison

Macronutrient comparison charts compare the amount of protein, total fats, and total carbohydrates in 300 grams of the food. The displayed values show how much of the daily needs can be covered by 300 grams of food.
Protein
7%
Onion
5%
Tomato juice
Carbohydrates
9%
Onion
4%
Tomato juice
Fats
0%
Onion
1%
Tomato juice

Comparison summary

Which food is lower in Sugar?
Tomato juice
Tomato juice is lower in Sugar (difference - 1.66g)
Which food is lower in Saturated Fat?
Tomato juice
Tomato juice is lower in Saturated Fat (difference - 0.023g)
Which food is cheaper?
Tomato juice
Tomato juice is cheaper (difference - $0.2)
Which food is richer in vitamins?
Tomato juice
Tomato juice is relatively richer in vitamins
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 6mg)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 16)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is richer in minerals?
?
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

The source of all the nutrient values on the page (excluding the main article the sources for which are presented separately if present) is the USDA's FoodCentral. The exact links to the foods presented on this page can be found below.

  1. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/nutrients
  2. Tomato juice - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170545/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.