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Last updated: Aug 9, 2026

Lone Star Steakhouse & Saloon

San Antonio Sirloin

CHARGRILLED STEAKSPopular

Lone Star Steakhouse & Saloon San Antonio Sirloin is fat-leaning, with about 66% of macro calories from fat. Each serving has 768 calories, 65g protein, 0g carbs, and 55g fat, making it worth balancing with lower-fat items in the same meal.

Per serving

Serving Size

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768

Calories

Per serving

65 g

Protein

0 g

Carbs

55 g

Fat

Nutrition Facts

Amount per serving

Calories768 kcal

% Daily Value*

Total Fat 55 g71%

Saturated Fat 22 g110%

Trans Fat 0 g—

Cholesterol 228 mg76%

Sodium 18 mg1%

Total Carbohydrate 0 g0%

Dietary Fiber 0 g0%

Total Sugars 0 g—

Protein 65 g130%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

768

kcal

Protein65 g (34%)

Carbs0 g (0%)

Fat55 g (66%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density8.5/10

34% of macro calories come from protein.

Satiety index10/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate192 min walk

About 77 minutes of running for these calories.

Key Nutrients

Protein 65 g130%

Fiber 0 g0%

Sodium 18 mg1%

Sugars 0 g—

Saturated Fat 22 g110%

How we calculate these values

Diet Compatibility

High protein8.5/10 protein density from 65g protein and 768 calories.Yes

Lower carb0g carbs per serving.Yes

Low fat55g total fat per serving.No

High sugar0g total sugars per serving.No

High sodium18mg sodium per serving.No

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Similar Items in CHARGRILLED STEAKS

View all

6 oz Sirloin244 kcal · 43 g protein Cajun Ribeye1,248 kcal · 80 g protein Cajun Ribeye - 12.7 oz817 kcal · 81 g protein

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

San Antonio Sirloin has 524 more calories than 6 oz Sirloin and 22g more protein. Compare

San Antonio Sirloin has 1873 fewer calories than Amarillo Cheese Fries and 4g less protein. Compare

6 oz Sirloin244 kcal · 43 g proteinAmarillo Cheese Fries2,641 kcal · 69 g proteinBacon & Bleu Burger821 kcal · 67 g proteinBaked Potato - Plain226 kcal · 6 g proteinBaked Sweet Potato332 kcal · 7 g proteinBaked Sweet Potato w/Toppings637 kcal · 2 g protein

Compare with 6 oz Sirloin

San Antonio Sirloin Compared With Nearby Items

Compared with Cajun Ribeye - 12.7 oz, another CHARGRILLED STEAKS item at Lone Star Steakhouse & Saloon, San Antonio Sirloin has 49 fewer calories than it and 16g less protein than it. That makes this page useful for deciding between nearby menu choices, not just reading a raw nutrition label.

Data Source and Methodology

Nutrition values for San Antonio Sirloin are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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