Prime Rib (12oz)

What's in the Prime Rib (12oz)?

At 940 calories per serving, the Prime Rib (12oz) represents about 47% of a 2,000-calorie daily intake. On the macronutrient side, roughly 31% of those calories come from protein, 69% from fat, and 0% from carbohydrates — a profile typical of LongHorn Steakhouse's Steak section. Sodium is often the line to watch with sit-down chain entrees, and this dish delivers 820mg, or about 36% of the FDA's daily reference value. If you're watching salt, pairing the Prime Rib (12oz) with a side salad (dressing on the side) and water rather than a sweetened beverage is the standard mitigation. Like most items at LongHorn Steakhouse, the dish is built for shareable portions and is plated at restaurant scale rather than a strict single serving. Boxing half of it before you start is one of the simplest ways to bring the per-meal calorie load down meaningfully without giving up the experience.

How this fits a 2,000-calorie day

One serving of the Prime Rib (12oz) supplies 940 calories, which represents roughly 47% of a 2,000-calorie reference day. That is a substantial entrée portion typical of full-service chain restaurants. If lunch and breakfast were modest, the dish can fit a normal day; if you also plan to eat dinner with sides, the budget gets tight.

The macronutrient split lands at roughly 31% protein, 0% carbohydrate and 69% fat by calorie share — a useful frame because raw gram counts often understate how much of a dish's energy actually comes from fat. Protein delivery is meaningful here at 72g per serving, which can keep satiety high relative to carb-heavy or fat-heavy alternatives.

Sodium clocks in at 820mg, or about 36% of the FDA's 2,300mg daily reference value. That is well within a reasonable share for a single meal and gives plenty of room for the rest of the day. Saturated fat is the other line worth watching at 30g — about 150% of the daily reference value — primarily a long-term cardiovascular consideration rather than a single-meal one.

Allergen profile

No major allergens flagged

No major allergens are flagged on this item in the chain's posted nutrition disclosure. That said, every full-service restaurant kitchen handles wheat, dairy, eggs and seafood somewhere on the line, so cross-contact remains possible. If you have a severe allergy, telling the server before ordering — and asking for the manager's confirmation that the kitchen can accommodate — is the standard precaution.

How it stacks up against the casual-dining category

Across the 52 Steak entries we track in this category — averaging 723 calories and 938mg sodium per serving — the Prime Rib (12oz) at LongHorn Steakhouse sits roughly 30% heavier than the category average. It also delivers 118mg less sodium than the typical Steak item we list, which is the more useful number if you're cross-shopping menus on the way to a reservation.

For direct cross-shopping, here are the closest Steak matches we track at competing chains:

Ordering strategy

If the Prime Rib (12oz) is the entrée you want, the highest-leverage adjustments are usually the ones that change the surrounding meal rather than the dish itself. Pairing the dish with a vegetable-forward side instead of a starch-heavy one keeps total carb load reasonable, and ordering water rather than a sweetened beverage avoids the easy 200–400 calorie tack-on that most people don't account for. Sauces, dressings and finishing oils are routinely the largest hidden source of calories on a casual-dining plate; getting them on the side gives you direct portion control without changing the dish you actually want to eat.

Ingredients summary

Slow-roasted prime rib, au jus

The bottom line

The Prime Rib (12oz) from LongHorn Steakhouse is a heavy entry on the chain's menu at 940 calories and 820mg of sodium per serving. Protein delivery is strong, which is the dish's most useful nutritional feature. Anyone tracking sodium specifically — including most people on blood-pressure medication — should weigh this dish against the chain's lower-sodium options on the same menu before committing.