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

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The main differences between Beef sirloin and Flank steak

  • Beef sirloin is richer in Selenium, Vitamin B3, Vitamin B6, Zinc, and Phosphorus, yet Flank steak is richer in Vitamin B12, and Monounsaturated Fat.
  • Daily need coverage for Selenium from Beef sirloin is 17% higher.
  • Beef sirloin contains less Saturated Fat.

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

Infographic

Beef sirloin vs Flank steak 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.
Contains more Iron +10.3%
Contains more Magnesium +17.4%
Contains more Phosphorus +20.5%
Contains more Potassium +20.9%
Contains more Zinc +16.3%
Contains more Manganese +22.2%
Contains more Selenium +32.3%
Contains less Sodium -15.2%
Equal in Calcium - 20
Equal in Iron - 1.74
Equal in Copper - 0.082
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 7% 72% 20% 109% 37% 9% 156% 29% 2% 213%
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 6% 66% 17% 90% 30% 8% 134% 28% 2% 161%
Contains more Iron +10.3%
Contains more Magnesium +17.4%
Contains more Phosphorus +20.5%
Contains more Potassium +20.9%
Contains more Zinc +16.3%
Contains more Manganese +22.2%
Contains more Selenium +32.3%
Contains less Sodium -15.2%
Equal in Calcium - 20
Equal in Iron - 1.74
Equal in Copper - 0.082

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.
:
Contains more Vitamin B1 +17.3%
Contains more Vitamin B2 +22.6%
Contains more Vitamin B3 +22.2%
Contains more Vitamin B5 +11.4%
Contains more Vitamin B6 +17.6%
Contains more Folate +11.1%
Contains more Vitamin B12 +10.9%
Equal in Vitamin E - 0.38
Equal in Folate - 9
Equal in Vitamin K - 1.4
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 0% 8% 0% 0% 22% 38% 169% 37% 158% 8% 184% 4%
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 0% 8% 0% 0% 19% 31% 139% 33% 134% 7% 204% 4%
Contains more Vitamin B1 +17.3%
Contains more Vitamin B2 +22.6%
Contains more Vitamin B3 +22.2%
Contains more Vitamin B5 +11.4%
Contains more Vitamin B6 +17.6%
Contains more Folate +11.1%
Contains more Vitamin B12 +10.9%
Equal in Vitamin E - 0.38
Equal in Folate - 9
Equal in Vitamin K - 1.4

Macronutrient Comparison

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

Fat Type Comparison

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

Comparison summary table

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

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Beef sirloin Flank steak
Low Fats diet ok
Low Carbs diet Equal
Low Calories 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
52%
Beef sirloin
48%
Flank steak
Minerals Daily Need Coverage Score
65%
Beef sirloin
54%
Flank steak

Comparison summary

Which food contains less Sodium?
Flank steak
Flank steak contains less Sodium (difference - 10mg)
Which food is lower in Cholesterol?
Flank steak
Flank steak is lower in Cholesterol (difference - 2mg)
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. Beef sirloin - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168636/nutrients
  2. Flank steak - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168733/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.