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Beef, Australian, imported, Wagyu, loin, tenderloin steak/roast, boneless, separable lean only, Aust. marble score 9, raw

Whole food · Beef Products

High proteinKeto-friendlyLow sugar
Beef, Australian, imported, Wagyu, loin, tenderloin steak/roast, boneless, separable lean only, Aust. marble score 9, raw

Photo: Wikipedia

This is the pinnacle of beef: a boneless, raw Wagyu tenderloin from Australia with an extraordinary marble score of 9, meaning its fat is intricately woven through the lean muscle like fine lace. The texture is famously buttery and almost melt-in-the-mouth, with a rich, beefy flavor that is deeply savory and slightly sweet from the high-quality intramuscular fat. Nutritionally, it's a powerhouse of protein (18.87g per 100g) and provides a significant amount of energy (237 kcal) from its premium fat content, with virtually no carbohydrates or sugar.

= 100 g
237 kcal
Calories
18.9 g
Protein
0.57 g
Carbs
17.7 g
Fat
0.00 g
Fiber
0.00 g
Sugar

Calorie split: 32% protein · 1% carbs · 67% fat

↓ Full nutrition

💚 Why it's loved

People adore it for its unparalleled, buttery richness and luxurious mouthfeel that transforms any meal into a gourmet experience. It's celebrated for its versatility, capable of being the star of a simple, perfectly seared steak or the foundation of an opulent roast, embodying both culinary tradition and modern indulgence.

⚠️ Watch-outs & how to enjoy it better

Its high fat content, while flavorful, makes it a very calorie-dense choice, which may be a concern for those managing weight or specific dietary goals. To counteract this, practice strict portion control (e.g., a 118g serving) and pair it with large portions of non-starchy vegetables like roasted asparagus or a fresh salad to add fiber and volume without excess calories. The richness can also be balanced by a simple, acidic sauce or a side of pickled vegetables.

Key benefits

🍽️ Popular dishes

🌍 Where it's eaten

💡 Did you know?

A marble score of 9 is near the top of the Japanese BMS (Beef Marbling Standard) scale, meaning this specific cut has more intramuscular fat than many other premium Wagyu grades, making it exceptionally rare and prized.

Nutrition Facts
Amount Per 100 g
Calories237
% Daily Value*
Total Fat 17.7g23%
Saturated Fat 7.4g37%
Trans Fat 0.65g
Cholesterol 74.0mg25%
Sodium 62.0mg3%
Total Carbohydrate 0.57g0%
Dietary Fiber 0.00g0%
Total Sugars 0.00g
Protein 18.9g
Calcium 4.0mg0%
Iron 2.4mg13%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Full nutrition (USDA data · scales with serving)

Water61.9 g
Energy237 kcal
Energy993 kj
Protein18.9 g
Total lipid (fat)17.7 g
Ash0.93 g
Carbohydrate, by difference0.57 g
Fiber, total dietary0.00 g
Total Sugars0.00 g
Calcium, Ca4.0 mg
Iron, Fe2.4 mg
Sodium, Na62.0 mg
Vitamin C, total ascorbic acid0.00 mg
Vitamin A, RAE0.00 ug
Carotene, beta0.00 ug
Carotene, alpha0.00 ug
Cryptoxanthin, beta0.00 ug
Vitamin A, IU0.00 iu
Lycopene0.00 ug
Lutein + zeaxanthin0.00 ug
Alcohol, ethyl0.00 g
Caffeine0.00 mg
Theobromine0.00 mg

Fat & fatty acid profile (per 100g)

Fatty acids, total saturated7.4 g
SFA 4:00.00 g
SFA 6:00.00 g
SFA 8:00.00 g
SFA 10:00.01 g
SFA 12:00.01 g
SFA 14:00.47 g
SFA 15:00.07 g
SFA 16:04.4 g
SFA 17:00.21 g
SFA 18:02.2 g
SFA 20:00.01 g
SFA 22:00.01 g
Fatty acids, total monounsaturated8.2 g
MUFA 14:10.09 g
MUFA 16:10.54 g
MUFA 18:17.5 g
MUFA 18:1 c7.0 g
MUFA 20:10.03 g
Fatty acids, total polyunsaturated0.70 g
PUFA 18:20.57 g
PUFA 18:2 n-6 c,c0.49 g
PUFA 18:30.04 g
PUFA 18:3 n-3 c,c,c (ALA)0.02 g
PUFA 18:3i0.02 g
PUFA 18:40.00 g
PUFA 20:2 n-6 c,c0.01 g
PUFA 20:40.07 g
PUFA 20:5 n-3 (EPA)0.01 g
PUFA 22:5 n-3 (DPA)0.01 g
Fatty acids, total trans0.65 g
Fatty acids, total trans-monoenoic0.55 g
TFA 18:1 t0.55 g
TFA 18:2 t not further defined0.08 g
Fatty acids, total trans-polyenoic0.10 g
Cholesterol74.0 mg

Amino acid profile (per 100g)

Tryptophan0.22 g
Threonine0.85 g
Isoleucine0.83 g
Leucine1.6 g
Lysine1.7 g
Methionine0.55 g
Cystine0.20 g
Phenylalanine0.74 g
Tyrosine0.67 g
Valine0.87 g
Arginine1.3 g
Histidine0.62 g
Alanine1.1 g
Aspartic acid1.7 g
Glutamic acid3.1 g
Glycine0.84 g
Proline0.78 g
Serine0.74 g
Hydroxyproline0.10 g

FAQ

What does a 'marble score 9' mean?
It refers to the Beef Marbling Standard (BMS), a scale from 1 to 12 that measures the amount and distribution of intramuscular fat. A score of 9 indicates extremely high, fine, and evenly distributed marbling, which is a key indicator of quality, tenderness, and flavor in Wagyu beef.

How is Australian Wagyu different from Japanese Wagyu?
Australian Wagyu is typically a crossbreed of Japanese Wagyu cattle (like Black Wagyu) and Australian cattle breeds (like Angus). This often results in a slightly leaner, but still highly marbled, beef with a robust beefy flavor that combines Japanese marbling with Australian beef characteristics.

Is this cut suitable for a low-carb or keto diet?
Yes, it is an excellent choice for low-carb and ketogenic diets. It is virtually carbohydrate-free (0.57g per 100g) and very high in both protein and fat, which are the primary macronutrients in these dietary approaches.

Nutrient density (calculated · NRF9.3)

5
Low nutrient density
Nutrient Rich Foods index: beneficial nutrients (protein, fiber, vitamins, minerals) minus saturated fat, added sugar & sodium, per 100 kcal.

NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.

Weight-loss friendliness (composite index)

46
Moderate for weight loss
Energy density 2.37 kcal/g · 32% calories from protein · 0.0 g fiber · 0.0 g sugar per 100 g.

Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.

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