Lobster Tail Nutrition Facts

Overview

A 3-ounce edible portion of lobster is a lean, high-protein food: USDA FoodData Central data for a 3-ounce raw portion of American lobster lists 65.4 calories, 14 g of protein, 0.64 g of total fat, and 0 g of carbohydrates. The exact numbers for your plate, however, depend on whether the value describes raw meat, a cooked edible portion, or a shell-on tail — and on what you add during cooking.

Most published lobster tail nutrition facts are actually lobster or lobster-meat values used as a practical proxy, because databases measure edible meat rather than a specific shell-on tail. That distinction matters more than it sounds: the FDA’s cooked seafood table lists 80 calories and 17 g of protein for the same 3-ounce cooked portion, slightly different from the raw figures. This article walks through the sourced numbers first, then explains serving basis, Daily Value context, micronutrients, cautions, and preparation effects so you can log or plan the meal accurately.

Lobster Tail Nutrition Facts for a 3-Ounce Serving

The most defensible baseline is a 3-ounce portion of lobster meat. The values below combine two USDA FoodData Central–attributed listings for raw American lobster — a Cornell lobster nutrition card and a USDA-based nutrient list — and are labeled by basis so you know exactly what the numbers describe.

Nutrient	Amount (3 oz raw lobster meat)	Source basis
Calories	65.4 kcal	USDA FoodData Central, raw American lobster
Protein	14 g	USDA FoodData Central
Carbohydrates	0 g	USDA FoodData Central
Dietary fiber	0 g	USDA FoodData Central
Total fat	0.64 g	USDA FoodData Central
Saturated fat	0.15 g	USDA FoodData Central
Omega-3 fatty acids	0.15 g	USDA FoodData Central
Cholesterol	108 mg	USDA FoodData Central
Sodium	360 mg	USDA FoodData Central
Potassium	170 mg	USDA FoodData Central
Calcium	71.4 mg	USDA FoodData Central
Magnesium	32.3 mg	USDA FoodData Central
Zinc	3 mg	USDA FoodData Central
Iron	0.22 mg	USDA FoodData Central
Vitamin B12	1.1 µg	USDA FoodData Central
Selenium	54.1 µg	USDA FoodData Central

Two caveats keep this table honest. These are values for raw lobster meat, not a whole shell-on tail, and cooked values differ slightly (covered next). If you need a different entry — for example a specific brand or a cooked tail — you can search USDA FoodData Central directly and check the stated serving basis before logging.

How Serving Size and Cooking State Change the Numbers

The single biggest source of confusion in lobster tail nutrition is that different sources measure different things. A “3-ounce serving” can mean raw edible meat, cooked edible meat, or — misleadingly — the weight of a whole tail including shell. Before you trust or log any number, identify which basis it uses.

The matrix below summarizes the four bases you are likely to encounter and how to treat each one.

Number you see	What it describes	How to use it
Raw 3 oz lobster meat (e.g., 65.4 kcal, 14 g protein)	Edible raw meat only, per USDA FoodData Central	Best baseline for logging plain lobster meat by raw weight
Cooked 3 oz lobster (e.g., 80 kcal, 17 g protein)	Edible portion cooked by moist or dry heat with no added ingredients, per the FDA cooked seafood table	Best match for what actually lands on your plate when cooked plain
Shell-on tail weight (e.g., a “6 oz tail”)	Total tail weight including inedible shell	Not a nutrition serving; the edible meat is less than the labeled tail weight, and no sourced yield figure is provided here
Packaged or processed product label	The specific product as sold, which may include added sodium or ingredients	Trust the package’s own Nutrition Facts panel over generic database values

The practical rule: match the basis of the number to the basis of what you are eating. If you weigh cooked meat, use cooked values; if you weigh raw meat before cooking, use raw values; and never treat a shell-on tail weight as an edible serving size.

Raw 3-Ounce Lobster Meat vs Cooked 3-Ounce Lobster

Raw and cooked values for the same 3-ounce weight are close but not identical. The USDA-based raw entry lists 65.4 calories, 14 g of protein, 108 mg of cholesterol, and 360 mg of sodium, while the FDA’s cooked (no added ingredients) edible-portion table lists 80 calories, 17 g of protein, 60 mg of cholesterol, 320 mg of sodium, 300 mg of potassium, and 1 g of carbohydrate for lobster.

The direction of the difference makes sense: cooking drives off water, so a fixed 3-ounce cooked weight contains more concentrated meat than 3 ounces of raw meat. The raw USDA entry also notes 68.8 g of water in the 3-ounce portion, which illustrates how much of raw lobster is moisture. For tracking, pick one basis and apply it consistently rather than mixing raw calories with cooked protein.

Why Tail Size, Shell Weight, and Product Labels Can Differ

One lobster tail is not automatically one 3-ounce serving. Tails are sold by total weight including the shell, and the shell is inedible, so a tail labeled at a given ounce count yields less edible meat than that number suggests. The supplied sources do not include a verified meat-yield percentage for small, medium, or large tails, so any per-tail calorie figure you see online should be treated as an estimate unless the publisher explains its yield assumption.

Product labels add another layer. Frozen or processed tails may be treated or packaged with added sodium or other ingredients, in which case the package’s Nutrition Facts panel — not a generic database entry — reflects what you are actually eating. When the two disagree, the label for the specific product wins. If you cook a tail and want an accurate log, the most reliable approach is to weigh the picked cooked meat and apply cooked edible-portion values.

Calories, Protein, Carbs, and Diet Fit

Lobster meat is one of the leaner protein sources you can log. Per the USDA-based 3-ounce raw entry, it delivers 14 g of protein for only 65.4 calories, with 0 g of carbohydrates, 0 g of fiber, and under 1 g of total fat (0.64 g, of which just 0.15 g is saturated). The FDA cooked figures tell the same story: 80 calories, 17 g of protein, 0.5 g of fat, and 1 g of carbohydrate per 3-ounce cooked portion.

That macro profile maps cleanly onto several common eating patterns:

• Low-carb and keto: at 0–1 g of carbohydrate per 3-ounce portion, plain lobster meat fits carb-restricted plans easily — though butter, breading, or sauces change that, as covered in the preparation section.
• High-protein or calorie-controlled diets: nearly all of lobster’s calories come from protein, making it efficient for readers prioritizing protein per calorie.
• Low-fat eating: with less than 1 g of total fat and 0.15 g of saturated fat per raw 3-ounce portion, plain lobster is naturally very low in fat.

The main qualifier is that this describes plain lobster meat. The moment a tail is broiled in butter or served with a cream sauce, the calorie and fat picture belongs to the recipe, not the lobster. If you track macros, log the lobster meat and the additions as separate items.

What the Daily Value Context Means

Amounts are easier to interpret as percentages of a typical day. The FDA cooked seafood table, which bases Percent Daily Values on a 2,000-calorie diet, gives lobster the following context for a 3-ounce cooked edible portion:

• Cholesterol: 60 mg, or 20% DV — the most notable single figure; one serving uses a fifth of the daily reference amount.
• Sodium: 320 mg, or 13% DV — meaningful before any salt, butter, or sauce is added.
• Total fat: 0.5 g, or 1% DV, with 0 g saturated fat (0% DV) — essentially negligible.
• Potassium: 300 mg, or 9% DV; calcium at 6% DV; iron at 2% DV; carbohydrate at 0% DV.

Read together, the DV picture explains why lobster is framed as lean but not unconditionally “free”: fat and carbohydrate barely register, while cholesterol and sodium are the two lines worth watching if you eat lobster often or have related dietary limits. Protein is listed at 17 g per cooked serving, a substantial contribution for so few calories.

Note that these percentages apply to plain cooked lobster with no added ingredients. The FDA basis assumes moist or dry heat cooking only, so a buttered or sauced tail will exceed these DV figures in ways the table cannot capture.

Vitamins, Minerals, and Omega-3s in Lobster Tail

Beyond macros, lobster meat supplies several micronutrients at meaningful levels for a 65-calorie serving. The USDA-based 3-ounce raw entry lists 54.1 µg of selenium, 1.1 µg of vitamin B12, 3 mg of zinc, 170 mg of potassium, 71.4 mg of calcium, 32.3 mg of magnesium, and 0.22 mg of iron.

Selenium and B12 are the standouts by amount. Vitamin B12 occurs naturally in animal foods, and seafood like lobster is a practical source for people who eat little red meat. Zinc at 3 mg per serving is also notable for such a low-calorie food. Potassium appears in both sourced datasets — 170 mg raw and 300 mg per cooked FDA portion (9% DV) — with the difference reflecting the raw-versus-cooked concentration effect discussed earlier.

Lobster also contains omega-3 fatty acids, though modestly: the USDA-based card lists 0.15 g per 3-ounce raw portion. That is consistent with lobster’s very low total fat — it provides some omega-3s, but it is not an oily fish, so readers specifically seeking high omega-3 intake would look to fattier seafood.

Competitor nutrition pages frequently mention copper, phosphorus, iodine, and vitamin D as well, but the sourced entries here do not quantify them, so treat those as commonly cited rather than confirmed figures. For a specific value, check the nutrient detail in USDA FoodData Central rather than relying on unsourced lists.

Cholesterol, Sodium, and Who May Need to Limit Lobster Tail

Cholesterol and sodium are the two numbers most likely to change whether lobster tail fits your plan. The USDA-based raw 3-ounce entry lists 108 mg of cholesterol and 360 mg of sodium; the FDA cooked table lists 60 mg of cholesterol (20% DV) and 320 mg of sodium (13% DV) for a 3-ounce cooked portion. Either way, one modest serving contributes a noticeable share of a typical day’s cholesterol and sodium before anything is added at the table.

Several groups may want to check the details before making lobster tail a regular choice:

• People with a shellfish allergy should avoid lobster entirely; shellfish allergy is one of the caution themes competitor nutrition guides consistently raise.
• People on sodium-restricted diets should account for the naturally occurring sodium (320–360 mg per 3 ounces in the sourced data) plus any added salt, butter, or brine in processed products.
• People managing dietary cholesterol should note the 20% DV per cooked serving and factor portion frequency accordingly.
• People with conditions involving potassium limits, gout, or kidney disease, and people with pregnancy-related seafood questions should treat generic nutrition data as a starting point and confirm suitability with their own clinician, since the sources here do not provide medical thresholds or frequency rules.

The sourced evidence supports the numbers above but not detailed safety guidance such as safe internal temperatures, storage timings, or pregnancy serving frequencies, so this article deliberately does not state them. The practical takeaway: lobster tail’s cholesterol and sodium are facts to plan around, not automatic disqualifiers — and the strictest limits are personal, not general.

Health Benefits Without Overstating Them

Is lobster tail healthy? Based strictly on the sourced data, plain lobster meat is a low-calorie, very low-fat, zero-carbohydrate protein source that also supplies selenium, zinc, vitamin B12, potassium, calcium, magnesium, and a small amount of omega-3 fatty acids. Getting 14–17 g of protein for 65–80 calories is a genuinely strong nutrition-per-calorie ratio, and that is the honest core of the “healthy” answer.

What the evidence does not support is the broader benefit language common on lobster marketing pages — claims about disease prevention, immune boosting, brain health, or “superfood” status. Nutrient content alone does not establish those outcomes, and the sources supplied here are nutrient databases and retailer articles, not clinical research. A careful reader should interpret “high in selenium” as a factual description of the food, not a promise about what eating it will do.

The bounded conclusion: lobster tail earns its lean-protein reputation on the numbers, with cholesterol and sodium as the two qualifiers, and preparation as the factor most likely to undo the lean profile. That framing tells you everything you need to decide whether it fits your meal without borrowing claims the data cannot carry.

Preparation Choices That Change Nutrition

The published nutrition facts describe plain lobster — and the FDA’s cooked seafood values apply specifically to seafood cooked “by moist or dry heat with no added ingredients.” Steaming, boiling, baking, broiling, or grilling a tail without additions keeps the meal close to those baseline numbers. Everything else you add sits on top.

The additions that matter most, directionally:

• Butter and garlic butter add calories and saturated fat to a food that natively has 0.15 g of saturated fat per raw 3-ounce portion — the topping can easily contribute more fat than the lobster itself.
• Stuffing, breading, and frying add carbohydrates, fat, and calories to an otherwise zero-carb food.
• Cream sauces and mayo-based preparations (such as lobster rolls) shift the dish toward the sauce’s profile.
• Salted water, seasoning blends, and brined or processed products raise sodium beyond the baseline 320–360 mg per serving.

The supplied sources do not include verified per-tablespoon or per-recipe figures for these additions, so this article does not assign exact numbers to them. The workable approach for trackers is simple: log the plain cooked lobster meat using the sourced values, then log each addition separately using its own label or database entry. For the leanest result, favor steaming or broiling with lemon, herbs, and minimal added salt, and serve butter on the side so the portion is a deliberate choice rather than an unmeasured coating.

Fresh vs Frozen, Tail vs Claw, and Species Differences

Fresh versus frozen is mostly a label question, not a biology question. Plain frozen lobster meat is nutritionally similar to fresh as a starting point, but frozen and processed products can carry added sodium from treatment or packaging — which is why the Nutrition Facts panel on the specific product is the authoritative number, not a generic database entry. When comparing products, check the sodium line and the ingredient list for added salt or solutions.

Lobster parts also come up in competitor guides: tail and claw meat are both edible lobster meat, and the sourced datasets report whole-lobster-meat values rather than separate tail and claw analyses, so this article does not claim quantified differences between parts. The same restraint applies to species. The USDA-based figures here describe American lobster (Homarus americanus); warm-water spiny lobster tails — the most common frozen tail in many markets — are a different species, and no directly comparable spiny-lobster dataset was supplied, so treat cross-species precision skeptically wherever you see it.

The practical guidance holds across all these variations: identify the species or product, read its own label if it has one, and fall back on the 3-ounce lobster-meat baseline when no product-specific data exists.

How Lobster Tail Compares With Other Proteins

Fair protein comparisons require equal cooked edible portions and identical preparation assumptions — otherwise you end up comparing plain steamed lobster against buttered shrimp or skin-on chicken and drawing the wrong conclusion. The FDA cooked seafood table is useful precisely because it standardizes everything to a 3-ounce (84 g) cooked edible portion with no added ingredients; lobster’s row shows 80 calories, 17 g of protein, 0.5 g of fat, and 60 mg of cholesterol on that basis.

Used as the anchor, that profile positions lobster among the leanest common proteins: very few foods deliver 17 g of protein in 80 calories with essentially no fat or carbohydrate. Competitor guides compare lobster favorably against other proteins on this lean-protein basis, and the sourced numbers support that general framing. The supplied evidence does not include equal-serving figures for shrimp, crab, salmon, chicken breast, steak, or scallops, so this article will not fabricate a comparison table — but the method is straightforward to apply yourself: pull each food’s 3-ounce cooked edible-portion entry from USDA FoodData Central or the FDA table and compare like with like.

The bottom line for a protein decision: plain lobster tail competes on leanness and protein density, while cholesterol, sodium, and — above all — preparation determine whether the finished dish keeps that advantage.