Beef, Australian, imported, Wagyu, loin, top loin steak/roast, boneless, separable lean and fat, Aust. marble score 4/5, raw
Whole food · Beef Products
Photo: Wikipedia
This is a premium Australian Wagyu top loin steak, prized for its intense marbling (marble score 4/5) that melts during cooking, creating an exceptionally buttery, rich flavor and a tender, melt-in-your-mouth texture. Nutritionally, it's a dense source of high-quality protein and monounsaturated fats, with virtually no carbohydrates. Its luxurious mouthfeel and deep beefy taste make it a centerpiece for special occasions.
Calorie split: 24% protein · 0% carbs · 75% fat
↓ Full nutrition💚 Why it's loved
People adore this cut for its unparalleled, buttery richness and tenderness that requires minimal seasoning to shine. Its cultural prestige as a luxury meat and versatility in simple preparations like grilling or pan-searing make it a favorite for celebratory meals.
⚠️ Watch-outs & how to enjoy it better
The high fat content (24.2g per 100g) and calorie density (289 kcal) mean it should be enjoyed in moderation, especially by those monitoring saturated fat intake. To balance, pair it with fiber-rich vegetables like roasted asparagus or a crisp salad, and practice portion control by serving it as a smaller, high-quality main alongside substantial sides.
Key benefits
- High in complete protein for muscle maintenance.
- Rich in monounsaturated fats, including oleic acid.
- Excellent source of B vitamins, especially B12.
- Provides essential minerals like zinc and iron.
- No carbohydrates or sugars.
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The intense marbling in Wagyu beef is largely due to a genetic predisposition for intramuscular fat deposition, and Australian Wagyu often involves crossbreeding Japanese Wagyu genetics with local cattle breeds.
Full nutrition (USDA data · scales with serving)
| Water | 57.2 g |
| Energy | 289 kcal |
| Energy | 1210 kj |
| Protein | 17.7 g |
| Total lipid (fat) | 24.2 g |
| Ash | 0.80 g |
| Carbohydrate, by difference | 0.12 g |
| Fiber, total dietary | 0.00 g |
| Total Sugars | 0.00 g |
| Sucrose | 0.00 g |
| Glucose | 0.00 g |
| Fructose | 0.00 g |
| Lactose | 0.00 g |
| Maltose | 0.00 g |
| Galactose | 0.00 g |
| Calcium, Ca | 4.0 mg |
| Iron, Fe | 1.7 mg |
| Sodium, Na | 56.0 mg |
| Vitamin C, total ascorbic acid | 0.00 mg |
| Vitamin A, RAE | 4.0 ug |
| Retinol | 4.0 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Vitamin A, IU | 13.0 iu |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 0.00 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 8.9 g |
| SFA 4:0 | 0.00 g |
| SFA 6:0 | 0.00 g |
| SFA 8:0 | 0.00 g |
| SFA 10:0 | 0.01 g |
| SFA 12:0 | 0.01 g |
| SFA 14:0 | 0.66 g |
| SFA 15:0 | 0.10 g |
| SFA 16:0 | 5.2 g |
| SFA 17:0 | 0.28 g |
| SFA 18:0 | 2.6 g |
| SFA 20:0 | 0.02 g |
| SFA 22:0 | 0.01 g |
| SFA 24:0 | 0.00 g |
| Fatty acids, total monounsaturated | 12.2 g |
| MUFA 14:1 | 0.20 g |
| MUFA 16:1 | 0.87 g |
| MUFA 18:1 | 11.1 g |
| MUFA 18:1-11 t (18:1t n-7) | 0.45 g |
| MUFA 20:1 | 0.06 g |
| Fatty acids, total polyunsaturated | 0.64 g |
| PUFA 18:2 | 0.54 g |
| PUFA 18:3 | 0.04 g |
| PUFA 18:4 | 0.00 g |
| PUFA 20:2 n-6 c,c | 0.01 g |
| PUFA 20:3 | 0.00 g |
| PUFA 20:4 | 0.04 g |
| PUFA 20:5 n-3 (EPA) | 0.01 g |
| PUFA 22:5 n-3 (DPA) | 0.01 g |
| Fatty acids, total trans | 1.0 g |
| Cholesterol | 63.0 mg |
Amino acid profile (per 100g)
| Tryptophan | 0.19 g |
| Threonine | 0.75 g |
| Isoleucine | 0.72 g |
| Leucine | 1.4 g |
| Lysine | 1.5 g |
| Methionine | 0.48 g |
| Cystine | 0.18 g |
| Phenylalanine | 0.65 g |
| Tyrosine | 0.59 g |
| Valine | 0.77 g |
| Arginine | 1.1 g |
| Histidine | 0.55 g |
| Alanine | 0.96 g |
| Aspartic acid | 1.5 g |
| Glutamic acid | 2.7 g |
| Glycine | 0.74 g |
| Proline | 0.68 g |
| Serine | 0.65 g |
| Hydroxyproline | 0.08 g |
FAQ
What does a marble score of 4/5 mean?
It indicates a high degree of intramuscular fat (marbling) within the meat, which significantly enhances tenderness, juiciness, and flavor. A score of 5/5 is the highest.
Is this beef high in saturated fat?
Yes, like most red meats, it contains saturated fat. However, Wagyu fat has a higher proportion of monounsaturated fats (like oleic acid, also found in olive oil) compared to conventional beef.
How should I cook this cut for best results?
Due to its high fat content, it cooks quickly. High-heat methods like grilling, pan-searing, or broiling are ideal. Cook to medium-rare or medium to render the fat without drying it out. Let it rest after cooking.
Can I eat this if I'm watching my cholesterol?
While it contains dietary cholesterol, the impact on blood cholesterol is complex and varies by individual. The high monounsaturated fat content may be beneficial. Consult a healthcare provider for personalized advice.
Nutrient density (calculated · NRF9.3)
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)
Energy density 2.89 kcal/g · 24% 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.