Beef, rib, large end (ribs 6-9), separable lean and fat, trimmed to 1/8" fat, prime, raw

The beef rib, large end is a primal cut sourced from ribs 6 through 9 of the beef carcass—an area known for its rich marbling, tenderness, and deep beef flavor. This cut arises from the forequarter of cattle, specifically from the rib primal, which extends from the chuck (shoulder) down toward the loin. Historically, beef ribs have been prized in various culinary traditions around the world, particularly in American barbecue culture where slow smoking transforms this cut into fall‑off‑the‑bone delicacies. The designation “prime” reflects the USDA quality grade given to the highest tier of beef, indicating abundant marbling and superior eating quality—this comes from the USDA grading system used across the United States. Prime beef typically constitutes a small fraction of total beef production yet commands higher market prices due to its superior tenderness and juiciness. In practice, the beef rib large end includes both the ribeye muscle group and several intercostal muscles—and in the version described here, the separable lean and fat are trimmed to 1/8" to balance flavor, tenderness, and fat content. When untrimmed, the large end offers slightly more surface fat and connective tissue, which when rendered slowly, imparts moistness and robust flavor. Comparatively, other rib cuts like the small end (ribs 10‑12) are leaner and slightly smaller, while ribeye steaks are cut from this same region but may differ in thickness and bone‑in vs boneless status. Globally, beef rib cuts are prepared in many ways—from French “ côte de boeuf” grilled in France, to Korean galbi cut across the bone and marinated, to Texas‑style slow‑smoked beef ribs. Nutritionally, this primal cut is a dense source of high‑biological‑value protein and several key micronutrients. The muscle tissue provides all essential amino acids needed by the human body, while the surrounding fat—especially intramuscular marbling—contributes significantly to total energy and influences palatability. From a food science perspective, the interplay between lean and fat fractions in beef ribs affects texture, water‑holding capacity, and the thermal transitions during cooking. Fat in beef is composed of a mixture of saturated, monounsaturated, and polyunsaturated fatty acids, along with cholesterol, which collectively influence nutrition and health outcomes. While this cut is higher in total and saturated fats than leaner steaks, it offers unique culinary attributes in many cultural contexts. Emphasizing balanced consumption alongside vegetables and whole grains can help integrate nutrient density without overemphasis on energy intake.

Beef rib large end provides an energy‑dense nutrient profile. Per 100 g raw, this cut delivers ~367 kcal, with ~15.8 g protein and ~33.3 g total fat—an energy distribution where fat contributes the majority of calories. Unlike leaner cuts (e.g., top sirloin), rib cuts contain more intramuscular fat which enhances flavor and affects calorie content. The high fat content includes ~13.96 g saturated fat, ~14.37 g monounsaturated fat, and ~1.23 g polyunsaturated fat, of which a portion consists of essential fatty acids. While saturated fat has been traditionally linked with raising LDL cholesterol, current evidence suggests dietary patterns and overall food context influence cardiovascular risk more than a single nutrient alone. In practical terms, an occasional serving of rib‑cut beef can be part of a balanced diet if paired with fiber‑rich sides and lower‑fat preparations. Protein quality in beef is among the highest of common food sources due to its complete essential amino acid profile. This specific cut contains significant amounts of leucine, lysine, valine, and other essential amino acids crucial for muscle protein synthesis and repair. Leucine alone accounts for over 1.24 g per 100 g and plays a key role in stimulating muscle anabolism. The high‑biological‑value protein in beef supports recovery in athletes and older adults, particularly in combination with resistance training. Micronutrient content in this cut includes ~1.65 mg iron, largely present as heme iron which is more efficiently absorbed than non‑heme iron from plant sources. Adequate iron intake supports red blood cell production and oxygen transport. Beef is also a rich source of zinc (3.58 mg) and vitamin B12 (2.63 µg)—nutrients that are essential for immune function, DNA synthesis, and neurological health. Notably, vitamin B12 is found almost exclusively in animal‑derived foods, making such cuts especially important for individuals at risk of deficiency. Other B vitamins such as niacin, riboflavin, and vitamin B6 contribute to energy metabolism and red blood cell formation. The absence of carbohydrates in this cut is characteristic of unprocessed red meats and means it contributes negligible sugar or starch to the diet. However, sodium content can vary depending on added seasonings or processing; in raw form here it remains modest at ~53 mg per 100 g. When compared with poultry or fish, beef ribs offer more saturated fat and calories but similar or higher levels of certain micronutrients. For individuals targeting lean protein with lower energy density, alternative cuts like tenderloin or top sirloin may be more appropriate. Finally, while beef provides essential nutrition, the balance of fats and methods of preparation affect how these nutrients influence health outcomes. Grilling, roasting, or sous‑vide cooking without excessive charring helps maintain nutrient integrity and limits the formation of harmful compounds.

Scientific evidence indicates that beef—when consumed as part of a varied diet—provides nutrients that support multiple aspects of human health. High‑quality animal protein found in beef supports muscle mass maintenance and physical function, particularly in older adults and athletes; a systematic review of randomized controlled trials observed overall positive effects of beef and its amino acids on aspects of wellbeing such as physical function and lean body mass in adults over age 50, though specific outcomes varied across studies. (ScienceDirect) Protein in beef contains all essential amino acids, with leucine playing an especially pivotal role in triggering muscle protein synthesis, which supports muscle repair and growth. This can be especially beneficial for resistance‑trained individuals and older adults at risk of sarcopenia. Beef is also a rich source of highly bioavailable heme iron, which helps prevent and treat iron‑deficiency anemia, particularly in populations with increased iron needs such as women of reproductive age. Iron from beef is more readily absorbed compared to non‑heme iron from plant foods, and combined intake with vitamin C‑rich foods further enhances absorption. Micronutrients abundant in beef include zinc and vitamin B12—both critical for immune function, wound healing, DNA synthesis, and neurological health. Vitamin B12 deficiency can lead to macrocytic anemia and neurologic symptoms; including beef as a source supports maintaining adequate status, especially for those with increased needs. Zinc in beef also plays a role in immune cell development and function. Beyond these foundational nutrients, beef contributes to overall nutrient adequacy in diverse life stages. Analyses of national dietary data suggest that including beef in the diet improves the percentage of individuals meeting recommendations for several often‑underconsumed nutrients such as protein, iron, zinc, and B vitamins. It is important to balance these benefits with broader diet quality and lifestyle factors. Epidemiological evidence links high intakes of red and processed meats with increased risks of cardiovascular diseases, certain cancers (notably colorectal cancer), and type 2 diabetes, likely due to patterns of consumption rather than isolated nutrient content. (mitchellnow.com) Nonetheless, beef—in lean, minimally processed forms—can be incorporated into balanced eating patterns prescribed by the Dietary Guidelines for Americans as a source of essential nutrients when consumed in moderation and alongside plenty of plant‑based foods.

Source: USDA FoodData Central (FDC ID: 168685)