Nutrition Breakdown

Shackleton's Calories — Lowest to Highest

Browse calorie values for Shackleton's menu items, with official nutrition where available and estimated calories for uncovered items. Updated July 2026.

Coverage

100%

Average Calories

343 kcal

Lowest Item

10 kcal

Highest Item

710 kcal

99 / 99 items resolved USDA database: 20 Estimated: 79

Lowest Calorie Items at Shackleton's

Use this ranking to find lighter menu options quickly

Full menu →
# Item Category Source Calories
1 Skirt Steak entrees Estimated 10 kcal
2 Steak Panini paninis Estimated 10 kcal
3 Steak Quesadilla appetizers Estimated 10 kcal
4 New York Strip Steak entrees Estimated 15 kcal
5 Grilled Asparagus sides USDA 24 kcal
6 Soft Drink beverages USDA 42 kcal
7 Chicken Milanese Wrap wraps USDA 63 kcal
8 Loaded Potato sides USDA 73 kcal
9 Caesar Salad Wrap wraps USDA 77 kcal
10 Baked Potato sides USDA 93 kcal
11 Vegetable Wrap wraps USDA 121 kcal
12 Sauteed Mushrooms and Onions sides USDA 123 kcal
13 Sweet Potato Fries sides USDA 153 kcal
14 Buffalo Chicken Wrap wraps USDA 169 kcal
15 French Fries sides USDA 179 kcal
16 Caesar Salad soups and salads Estimated 180 kcal
17 Chopped Antipasto Salad soups and salads Estimated 180 kcal
18 Cobb Salad soups and salads Estimated 180 kcal
19 Portabello Salad soups and salads Estimated 180 kcal
20 Prime Time Salad soups and salads Estimated 180 kcal
21 Shackletons Salad soups and salads Estimated 180 kcal
22 Trio Salad soups and salads Estimated 180 kcal
23 Honey Chicken Wrap wraps USDA 182 kcal
24 Creamed Spinach sides USDA 186 kcal
25 French Onion Soup soups and salads Estimated 220 kcal
26 Bacon Cheeseburger Wrap wraps USDA 229 kcal
27 Onion Rings sides USDA 235 kcal
28 Cheesesteak Sandwich between the bread Estimated 240 kcal
29 Steak Wrap wraps USDA 247 kcal
30 Grilled Chicken Wrap wraps USDA 252 kcal
Nutrition sync is temporarily paused Missing official items: 79

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

9 Personal Pizza

appetizers 710 kcal

3 Mini Cheeseburger Slider

appetizers 620 kcal

Bull Burger

between the bread 620 kcal

Burger

between the bread 620 kcal

Portobello Burger

between the bread 620 kcal

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How Estimated Calories Are Calculated

When official nutrition is unavailable, calorie values are estimated using menu-item keywords and then adjusted by portion size. These values are directional for comparison, not medical nutrition advice.

  • Base estimate: item-name tokens (for example burger, fries, salad, pizza, shake) map to baseline calorie ranges.
  • Portion weighting: ounce and gram values adjust the estimate (about 8 oz = 1.0x, about 230 g = 1.0x), then the value is capped within a safe range.
  • Size modifiers: small/kids items apply a lower multiplier, while large/xl/family/double items apply a higher multiplier.
  • Final output: estimates are rounded to whole calories and shown as Estimated in the source column.

Shackleton's Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many Shackleton's items have calorie data?
Shackleton's currently has calorie values for 99 of 99 menu items (100% coverage). We first use official nutrition sources when available, then apply estimation fallback for unresolved items.

What is the lowest-calorie item at Shackleton's?
The lightest item currently tracked is Skirt Steak at approximately 10 kcal. Use the ranked table to find other low-calorie meal choices.

Are Shackleton's calorie values official or estimated?
This page uses a hybrid model: 20 items use USDA database estimates, while 79 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?
Use the Shackleton's full menu prices page for price-focused browsing and the cheapest menu items page for budget picks. This calories page is built for nutrition-first filtering.

How to Use This Calories Page

Use this page to compare low-calorie and high-calorie items quickly before ordering. Official values are used where available, and estimated values fill the coverage gap for broad menu discovery.

Estimated values are directional and may vary by location, preparation style, and serving size. For strict dietary planning, cross-check with the official restaurant nutrition statement when available.