Lobster Tail

What's in the Lobster Tail?

At 520 calories per serving, the Lobster Tail represents about 26% of a 2,000-calorie daily intake. On the macronutrient side, roughly 40% of those calories come from protein, 66% from fat, and 6% from carbohydrates — a profile typical of Ruth's Chris Steak House's Entree section. Sodium is often the line to watch with sit-down chain entrees, and this dish delivers 1690mg, or about 73% of the FDA's daily reference value. If you're watching salt, pairing the Lobster Tail with a side salad (dressing on the side) and water rather than a sweetened beverage is the standard mitigation. Like most items at Ruth's Chris Steak House, 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 Lobster Tail supplies 520 calories, which represents roughly 26% of a 2,000-calorie reference day. That is a moderate restaurant-portion meal — generous compared to a home-cooked plate but not at the upper end of the chain's menu. A side salad or a smaller appetizer can round it out without pushing the day over budget.

The macronutrient split lands at roughly 36% protein, 5% carbohydrate and 59% 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 52g per serving, which can keep satiety high relative to carb-heavy or fat-heavy alternatives.

Sodium clocks in at 1690mg, or about 73% of the FDA's 2,300mg daily reference value. That is on the higher end for a single restaurant serving. It still fits a normal day if other meals are light, but two restaurant meals in a row at this sodium level will add up quickly. Saturated fat is the other line worth watching at 21g — about 105% of the daily reference value — primarily a long-term cardiovascular consideration rather than a single-meal one.

Allergen profile

Shellfish Milk

The Lobster Tail is flagged for Shellfish and Milk in the chain's posted allergen panel. The dairy component is most often in the sauce, the cheese topping or the butter used to finish the plate; an unsauced or sauce-on-the-side preparation can sometimes reduce — but rarely eliminate — the exposure. Shellfish presence means shared fryers and shared prep surfaces are likely; a shellfish-allergic guest should ask for confirmation that the protein is cooked on a dedicated surface. Cross-contact in a shared kitchen is always possible, so when in doubt, ask the floor manager.

How it stacks up against the casual-dining category

Across the 146 Entree entries we track in this category — averaging 791 calories and 1,869mg sodium per serving — the Lobster Tail at Ruth's Chris Steak House sits roughly 34% lighter than the category average. It also delivers 179mg less sodium than the typical Entree 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 Entree matches we track at competing chains:

Ordering strategy

If the Lobster Tail is the entrée you want, the highest-leverage adjustments are usually the ones that change the surrounding meal rather than the dish itself. Because the entrée itself is moderate, you have headroom for an appetizer or a starter side without dropping into restrictive territory — useful for a longer dinner where the goal is to stretch the meal rather than minimize it. 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

Steamed cold-water lobster, drawn butter

The bottom line

The Lobster Tail from Ruth's Chris Steak House is a moderate entry on the chain's menu at 520 calories and 1,690mg 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.