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Spirulina vs. Sweet onion — In-Depth Nutrition Comparison

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Significant differences between Spirulina and Sweet onion

  • Spirulina has more Copper, Iron, Vitamin B2, Vitamin B1, and Vitamin B3, however, Sweet onion is richer in Vitamin B6.
  • Spirulina covers your daily Copper needs 60% more than Sweet onion.
  • Sweet onion has 17 times less Vitamin B2 than Spirulina. Spirulina has 0.342mg of Vitamin B2, while Sweet onion has 0.02mg.
  • Spirulina contains less Sugar.

Specific food types used in this comparison are Seaweed, spirulina, raw and Onions, sweet, raw.

Infographic

Spirulina vs Sweet onion infographic
Infographic link

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 14% 3.6% 11% 105% 199% 5.5% 4.7% 13% 24% 3.8%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 6.4% 6% 11% 9.8% 19% 3.5% 12% 1% 9.9% 2.7%
Contains more MagnesiumMagnesium +111.1%
Contains more IronIron +973.1%
Contains more CopperCopper +966.1%
Contains more ZincZinc +53.8%
Contains more ManganeseManganese +144.7%
Contains more SeleniumSelenium +40%
Contains more CalciumCalcium +66.7%
Contains more PhosphorusPhosphorus +145.5%
Contains less SodiumSodium -91.8%
~equal in Potassium ~119mg

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 3% 3.4% 9.8% 0% 56% 79% 22% 20% 7.8% 0% 6.3% 6.8% 3.5%
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% 0.06% 0.4% 0% 10% 4.6% 2.5% 5.9% 30% 0% 0.75% 17% 3%
Contains more Vitamin AVitamin A +5500%
Contains more Vitamin EVitamin E +2350%
Contains more Vitamin B1Vitamin B1 +441.5%
Contains more Vitamin B2Vitamin B2 +1610%
Contains more Vitamin B3Vitamin B3 +799.2%
Contains more Vitamin B5Vitamin B5 +231.6%
Contains more Vitamin KVitamin K +733.3%
Contains more CholineCholine +18.2%
Contains more Vitamin CVitamin C +433.3%
Contains more Vitamin B6Vitamin B6 +282.4%
Contains more FolateFolate +155.6%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
6% 2% 91%
Protein: 5.92 g
Fats: 0.39 g
Carbs: 2.42 g
Water: 90.67 g
Other: 0.6 g
8% 91%
Protein: 0.8 g
Fats: 0.08 g
Carbs: 7.55 g
Water: 91.24 g
Other: 0.33 g
Contains more ProteinProtein +640%
Contains more FatsFats +387.5%
Contains more OtherOther +81.8%
Contains more CarbsCarbs +212%
~equal in Water ~91.24g

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Spirulina Sweet onion Opinion
Calories 26kcal 32kcal Sweet onion
Protein 5.92g 0.8g Spirulina
Fats 0.39g 0.08g Spirulina
Vitamin C 0.9mg 4.8mg Sweet onion
Net carbs 2.02g 6.65g Sweet onion
Carbs 2.42g 7.55g Sweet onion
Magnesium 19mg 9mg Spirulina
Calcium 12mg 20mg Sweet onion
Potassium 127mg 119mg Spirulina
Iron 2.79mg 0.26mg Spirulina
Sugar 0.3g 5.02g Spirulina
Fiber 0.4g 0.9g Sweet onion
Copper 0.597mg 0.056mg Spirulina
Zinc 0.2mg 0.13mg Spirulina
Phosphorus 11mg 27mg Sweet onion
Sodium 98mg 8mg Sweet onion
Vitamin A 56IU 1IU Spirulina
Vitamin A 3µg 0µg Spirulina
Vitamin E 0.49mg 0.02mg Spirulina
Manganese 0.186mg 0.076mg Spirulina
Selenium 0.7µg 0.5µg Spirulina
Vitamin B1 0.222mg 0.041mg Spirulina
Vitamin B2 0.342mg 0.02mg Spirulina
Vitamin B3 1.196mg 0.133mg Spirulina
Vitamin B5 0.325mg 0.098mg Spirulina
Vitamin B6 0.034mg 0.13mg Sweet onion
Vitamin K 2.5µg 0.3µg Spirulina
Folate 9µg 23µg Sweet onion
Choline 6.5mg 5.5mg Spirulina
Saturated Fat 0.135g Sweet onion
Monounsaturated Fat 0.034g Spirulina
Polyunsaturated fat 0.106g Spirulina
Tryptophan 0.096mg 0.009mg Spirulina
Threonine 0.306mg 0.018mg Spirulina
Isoleucine 0.331mg 0.014mg Spirulina
Leucine 0.509mg 0.025mg Spirulina
Lysine 0.312mg 0.033mg Spirulina
Methionine 0.118mg 0.009mg Spirulina
Phenylalanine 0.286mg 0.024mg Spirulina
Valine 0.362mg 0.02mg Spirulina
Histidine 0.112mg 0.011mg Spirulina
Fructose 2.02g Sweet onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Spirulina Sweet onion
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet Equal

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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
17%
Spirulina
7%
Sweet onion
Minerals Daily Need Coverage Score
38%
Spirulina
8%
Sweet onion

Comparison summary

Which food contains less Sodium?
Sweet onion
Sweet onion contains less Sodium (difference - 90mg)
Which food is lower in Saturated Fat?
Sweet onion
Sweet onion is lower in Saturated Fat (difference - 0.135g)
Which food is lower in Sugar?
Spirulina
Spirulina is lower in Sugar (difference - 4.72g)
Which food is richer in minerals?
Spirulina
Spirulina is relatively richer in minerals
Which food is richer in vitamins?
Spirulina
Spirulina is relatively richer in vitamins
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes ()
Which food is cheaper?
?
The foods are relatively equal in price ($)

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. Spirulina - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170091/nutrients
  2. Sweet onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170008/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.