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Flank steak vs. Beef sirloin — In-Depth Nutrition Comparison

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The main differences between Flank steak and Beef sirloin

  • Flank steak is richer in Vitamin B12, and Monounsaturated Fat, yet Beef sirloin is richer in Selenium, Vitamin B3, Vitamin B6, Zinc, and Phosphorus.
  • Daily need coverage for Selenium from Beef sirloin is 17% higher.
  • Flank steak contains 2 times more Saturated Fat than Beef sirloin. Flank steak contains 3.395g of Saturated Fat, while Beef sirloin contains 1.915g.

Food types used in this article are Beef, flank, steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, broiled and Beef, top sirloin, steak, separable lean only, trimmed to 0" fat, select, cooked, broiled.

Infographic

Flank steak vs Beef sirloin 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% 6% 30% 65% 27% 134% 90% 7.3% 1.2% 160%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 19% 6.6% 36% 72% 28% 155% 108% 8.6% 1.4% 212%
Contains less SodiumSodium -15.2%
Contains more MagnesiumMagnesium +17.4%
Contains more PotassiumPotassium +20.9%
Contains more IronIron +10.3%
Contains more ZincZinc +16.3%
Contains more PhosphorusPhosphorus +20.5%
Contains more ManganeseManganese +22.2%
Contains more SeleniumSelenium +32.3%
~equal in Calcium ~22mg
~equal in Copper ~0.085mg

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 0% 0% 7.6% 0% 19% 31% 138% 33% 134% 204% 3.5% 6.8% 57%
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 0% 0% 7.8% 0% 22% 38% 169% 36% 157% 184% 3.5% 7.5% 64%
Contains more Vitamin B1Vitamin B1 +17.3%
Contains more Vitamin B2Vitamin B2 +22.6%
Contains more Vitamin B3Vitamin B3 +22.2%
Contains more Vitamin B5Vitamin B5 +11.4%
Contains more Vitamin B6Vitamin B6 +17.6%
Contains more FolateFolate +11.1%
Contains more CholineCholine +11.3%
~equal in Vitamin C ~0mg
~equal in Vitamin A ~0IU
~equal in Vitamin E ~0.39mg
~equal in Vitamin D ~µg
~equal in Vitamin B12 ~1.47µg
~equal in Vitamin K ~1.4µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
28% 8% 64%
Protein: 27.66 g
Fats: 8.23 g
Carbs: 0 g
Water: 64.17 g
Other: 0 g
31% 5% 64%
Protein: 30.8 g
Fats: 5.03 g
Carbs: 0 g
Water: 63.58 g
Other: 0.59 g
Contains more FatsFats +63.6%
Contains more ProteinProtein +11.4%
~equal in Carbs ~0g
~equal in Water ~63.58g
~equal in Other ~0.59g

Fat Type Comparison

Fat type breakdown side-by-side comparison
48% 47% 5%
Saturated Fat: Sat. Fat 3.395 g
Monounsaturated Fat: Mono. Fat 3.317 g
Polyunsaturated fat: Poly. Fat 0.322 g
47% 49% 5%
Saturated Fat: Sat. Fat 1.915 g
Monounsaturated Fat: Mono. Fat 2.006 g
Polyunsaturated fat: Poly. Fat 0.185 g
Contains more Mono. FatMonounsaturated Fat +65.4%
Contains more Poly. FatPolyunsaturated fat +74.1%
Contains less Sat. FatSaturated Fat -43.6%

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Flank steak Beef sirloin Opinion
Calories 192kcal 177kcal Flank steak
Protein 27.66g 30.8g Beef sirloin
Fats 8.23g 5.03g Flank steak
Cholesterol 79mg 81mg Flank steak
Magnesium 23mg 27mg Beef sirloin
Calcium 20mg 22mg Beef sirloin
Potassium 339mg 410mg Beef sirloin
Iron 1.74mg 1.92mg Beef sirloin
Copper 0.082mg 0.085mg Beef sirloin
Zinc 4.9mg 5.7mg Beef sirloin
Phosphorus 210mg 253mg Beef sirloin
Sodium 56mg 66mg Flank steak
Vitamin E 0.38mg 0.39mg Beef sirloin
Manganese 0.009mg 0.011mg Beef sirloin
Selenium 29.4µg 38.9µg Beef sirloin
Vitamin B1 0.075mg 0.088mg Beef sirloin
Vitamin B2 0.133mg 0.163mg Beef sirloin
Vitamin B3 7.363mg 9.001mg Beef sirloin
Vitamin B5 0.545mg 0.607mg Beef sirloin
Vitamin B6 0.579mg 0.681mg Beef sirloin
Vitamin B12 1.63µg 1.47µg Flank steak
Vitamin K 1.4µg 1.4µg
Folate 9µg 10µg Beef sirloin
Choline 105.4mg 117.3mg Beef sirloin
Saturated Fat 3.395g 1.915g Beef sirloin
Monounsaturated Fat 3.317g 2.006g Flank steak
Polyunsaturated fat 0.322g 0.185g Flank steak
Tryptophan 0.182mg 0.202mg Beef sirloin
Threonine 1.105mg 1.23mg Beef sirloin
Isoleucine 1.259mg 1.401mg Beef sirloin
Leucine 2.201mg 2.45mg Beef sirloin
Lysine 2.338mg 2.603mg Beef sirloin
Methionine 0.72mg 0.802mg Beef sirloin
Phenylalanine 1.093mg 1.217mg Beef sirloin
Valine 1.372mg 1.528mg Beef sirloin
Histidine 0.883mg 0.983mg Beef sirloin

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Flank steak Beef sirloin
Low Calories diet ok
Low Fats diet ok
Low Carbs diet Equal
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
49%
Flank steak
53%
Beef sirloin
Minerals Daily Need Coverage Score
54%
Flank steak
65%
Beef sirloin

Comparison summary

Which food is lower in Cholesterol?
Flank steak
Flank steak is lower in Cholesterol (difference - 2mg)
Which food contains less Sodium?
Flank steak
Flank steak contains less Sodium (difference - 10mg)
Which food is lower in Saturated Fat?
Beef sirloin
Beef sirloin is lower in Saturated Fat (difference - 1.48g)
Which food is richer in minerals?
Beef sirloin
Beef sirloin is relatively richer in minerals
Which food is richer in vitamins?
Beef sirloin
Beef sirloin is relatively richer in vitamins
Which food contains less Sugar?
?
The foods are relatively equal in Sugar (0 g)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes (0)
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. Flank steak - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168733/nutrients
  2. Beef sirloin - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168636/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.