💎 Key Nutrients
What Is Beef Bottom Round Steak? Origin and Varieties
Beef bottom round steak is a classic cut of red meat derived from the round primal — the hindquarter of the steer or heifer. This region is composed of muscles that work hard during the animal’s life, making bottom round naturally lean and comparatively tougher than more premium cuts like ribeye or tenderloin. Historically, this cut was prized for its affordability and versatility, often used in slow‑cooked dishes, stews, or marinated preparations to improve tenderness. The bottom round itself includes muscles like the biceps femoris and stretches across the animal’s leg, contributing to its robust yet economical profile. In culinary practice, bottom round steak typically undergoes trimming to reduce external fat; the USDA FoodData Central item you’re exploring is trimmed to 1/8" fat and categorized as select grade, indicating moderate marbling and tenderness. Unlike prime or choice grades that have more intramuscular fat (marbling) and generally more flavor and juiciness, select cuts are leaner and benefit from marinating, braising, or slow roasting. Varieties of bottom round cuts include the outside round, eye of round, and top round — each with slight differences in texture and best use. Bottom round steak itself can be labeled differently depending on local butchery traditions and marketplace terminology, but it remains fundamentally a lean muscle with a rich, beefy flavor. It is widely available in supermarkets and butcher shops globally and is often promoted in nutrition circles as a protein‑rich option for weight management, muscle growth, and nutrient density. From a production standpoint, cattle raised for beef are typically finished on grain or grass diets, which can subtly influence the meat’s fat profile. Grass‑fed beef tends to have a slightly higher omega‑3 fatty acid profile and antioxidant content compared to grain‑fed, though overall differences are moderate when compared to the robust nutrient profile present in all lean beef cuts. Regardless of production system, bottom round steak offers a concentrated source of high‑quality protein and essential micronutrients like iron, zinc, and B vitamins that are less abundant in many plant foods.
Nutrition Profile: A Detailed Breakdown
Beef bottom round steak’s nutrition profile reflects its status as a high‑protein, no‑carbohydrate food with meaningful contributions to essential vitamins and minerals. In a raw 3 oz (85 g) portion, it provides ~17.6 g of protein and 9.3 g of total fat, of which about 3.7 g are saturated. This lean composition makes it suitable for diets where muscle maintenance and nutrient density are priorities. ### Macronutrients The protein in bottom round steak consists of a complete amino acid profile, meaning it supplies all nine essential amino acids that the body cannot synthesize on its own. This makes it especially valuable for muscle repair, immune function, and hormone synthesis. The amino acids like leucine, isoleucine, and valine (branched‑chain amino acids) are particularly important for stimulating muscle protein synthesis. Contrary to some cuts high in marbling, bottom round steak’s fat content is moderate because it’s trimmed close to the lean muscle. Saturated fat, while essential in small amounts for hormonal and cellular function, should be consumed in moderation, as excessive intake has been linked to elevated LDL cholesterol in susceptible individuals. ### Micronutrients This cut is a notable source of iron (1.4 mg per 3 oz), predominantly in the heme form, which is more bioavailable than iron from plant sources. Iron is critical for oxygen transport in the blood and energy metabolism, and deficiency is common worldwide. Similarly, the steak provides vitamin B12 (1.0 µg), essential for nerve health and red blood cell formation, a nutrient often limited in vegan and vegetarian diets. Other minerals supplied include zinc, which supports immune function and wound healing, and selenium, an antioxidant cofactor that protects against oxidative stress. Potassium, present at ~285 mg per serving, plays a role in blood pressure regulation and cellular function. Small amounts of riboflavin, niacin, and vitamin B6 further contribute to energy metabolism. ### Nutrient Density Compared to Similar Foods Compared to poultry breast, bottom round steak typically contains higher iron and zinc per serving, though calorie and saturated fat content may be higher depending on trimming. Compared to fatty cuts like ribeye, bottom round is significantly leaner, offering a higher protein‑to‑calorie ratio, which benefits those targeting weight management or athletic performance. Nutrient density — the amount of essential nutrients per calorie — positions bottom round steak as a valuable animal protein choice, especially in dietary patterns that emphasize lean meats.
Evidence‑Based Health Benefits
While red meat consumption remains a topic of active research, several evidence‑based benefits of lean beef like bottom round steak have been documented: ### 1. Supports Muscle Growth and Maintenance Beef is one of the richest dietary sources of high‑quality protein with all essential amino acids. Protein from beef stimulates muscle protein synthesis more effectively than many plant proteins due to its amino acid profile. This is particularly important for athletes, older adults, and people recovering from injury. The systematic review by Roberts et al. highlights the positive contribution of beef’s amino acids to physical function and lean body mass, especially in adults over 50, though research is still evolving. ### 2. Helps Prevent Iron Deficiency Heme iron, abundant in beef, is absorbed at a rate several times higher than non‑heme iron from plant foods. Adequate heme iron intake can prevent iron‑deficiency anemia — a common global issue, particularly among women of reproductive age and young children. This benefit is one reason lean beef is often recommended for individuals at risk of low iron stores. ### 3. Provides Essential B Vitamins Beef delivers key B vitamins — including B12, niacin, and B6 — that are critical for energy production, neural function, and DNA synthesis. Vitamin B12 deficiency is rare in omnivores but common in plant‑based eaters, underscoring beef’s role in ensuring adequate intake. ### 4. Supports Immune Function Zinc, abundantly found in lean beef cuts, is essential for immune cell development and function. Even mild zinc deficiencies can impair immune responses. Consuming lean beef contributes significantly to daily zinc requirements. ### 5. Contributes to Overall Nutritional Adequacy A balanced diet including lean beef can help meet daily needs for multiple nutrients that are harder to obtain in adequate amounts from plant foods alone, notably bioavailable iron, zinc, and B12, especially in populations with higher physiological needs (e.g., pregnant women, adolescents, and the elderly). Publications on red meat’s value emphasize its role in covering nutrient gaps when consumed in moderation. While these benefits are supported by research, it’s critical to interpret them within the context of overall diet quality and consumption patterns.
Potential Risks and Who Should Be Careful
Although bottom round steak delivers numerous essential nutrients, consuming red meat merits caution in certain contexts: ### Cardiovascular and Metabolic Risks Epidemiological evidence, especially from long‑term cohort studies, has linked higher red meat intake with increased risks of cardiovascular disease (CVD), type 2 diabetes, and some cancers. For example, large population studies have shown that diets high in red and processed meats are associated with elevated risks of CVD and metabolic conditions. Harvard researchers consistently report these associations and recommend moderation, particularly reducing processed meat intake.
Best Ways to Eat Beef Bottom Round Steak
Bottom round steak shines in preparations that maximize tenderness and flavor without drying out the meat. Braising in a rich liquid with aromatic herbs yields succulent results: sear both sides, then cook low and slow (e.g., 275°F / 135°C for 2–3 hours) with onions, carrots, and broth. Marinating: A marinade with acidic components (like lemon juice or wine) plus olive oil and aromatics can improve texture and add flavor complexity. For example, a marinade of soy sauce, balsamic vinegar, garlic, and rosemary for at least 6 hours deepens flavor and assists tenderization. Grilling: For quicker meals, grill over medium heat after tenderizing with a meat mallet. Aim for medium‑rare to medium and rest before slicing thinly against the grain. Flavor Pairings: Beef pairs well with umami‑rich ingredients such as mushrooms and soy or Worcestershire sauces. Bright, acidic sides — like chimichurri sauce or lemon‑garlic asparagus — balance the steak’s richness. Starch sides like roasted sweet potatoes or quinoa make a balanced plate. Meal Ideas: • Beef stir‑fry: Thinly sliced bottom round with colorful vegetables and a ginger‑soy glaze over brown rice. • Steak salad: Grilled steak strips on mixed greens with cherry tomatoes, avocado, and a balsamic vinaigrette. • Slow‑cooked tacos: Braised and shredded steak with cilantro, lime, and pickled onions in corn tortillas.
Nutrient Absorption: What Helps and Hinders
Absorption of key nutrients from beef — particularly iron and zinc — is influenced by dietary context. Heme iron, the form found in beef, is absorbed more efficiently than non‑heme iron in plant foods. Vitamin C from fruits and vegetables consumed concurrently can further enhance non‑heme iron absorption from the meal, though it does not significantly increase heme iron uptake. Inhibitors: Compounds like phytates (in whole grains and legumes) and polyphenols (in tea and coffee) can reduce iron absorption if consumed simultaneously with beef. For individuals prioritizing iron status, avoid large amounts of tea or coffee with meals. Fat Intake: While beef provides fat that aids the absorption of fat‑soluble vitamins, balancing fat intake with lean protein and fiber from vegetables supports overall nutrient uptake and digestion.
Beef Bottom Round Steak for Specific Diets
Keto: Compatible due to high protein, zero carbs; pair with leafy greens and healthy fats from avocado or olive oil. Paleo: Fits well as an unprocessed animal protein; combine with non‑starchy vegetables and nuts. Whole30: Compliant if unseasoned/approved seasonings are used; excellent source of protein for meal prep. Low FODMAP: Suitable if prepared without high‑FODMAP ingredients (onions, garlic). Diabetic Friendly: Zero carbs make it a favorable protein source; watch portion sizes and pair with fiber‑rich sides to moderate glycemic response. Heart‑Healthy: Choose lean trimming, limit saturated fat from added oils, and emphasize plant protein variety alongside this cut.
❤️ Health Benefits
Supports muscle growth and repair
Provides complete amino acid profile essential for muscle protein synthesis
Evidence: moderateHelps prevent iron deficiency
Heme iron in beef is absorbed efficiently affecting hemoglobin production
Evidence: strongSupports immune function
Provides zinc needed for immune cell activity
Evidence: strongContributes essential B vitamins
Supplies vitamins for energy metabolism and neural health
Evidence: strong⚖️ Comparisons
Vs. Chicken breast
Beef bottom round offers more iron and zinc per serving but higher saturated fat depending on trim
Vs. Pork loin
Similar protein but beef generally provides more bioavailable iron
Vs. Salmon
Salmon provides beneficial omega‑3s not present in significant amounts in beef
🧊 Storage Guide
❄️
Fridge
3–5 days
🧊
Freezer
4–12 months
⚠️ Signs of
Spoilage:
- smell: sour or off odor
- visual: grayish discoloration, slimy surface
- texture: sticky or tacky
- when to discard: visible mold, strong sour smell, slimy texture
👥 Special Considerations
elderly
Why: High‑quality protein supports sarcopenia prevention
Recommendation: Beneficial for maintaining muscle mass
athletes
Why: Complete amino acids support muscle repair
Recommendation: Include as protein source for recovery
children
Why: Provides bioavailable iron and protein
Recommendation: Lean beef can support growth when portion‑controlled
pregnancy
Why: Provides iron and B12 important in pregnancy
Recommendation: Consume in moderation as part of a balanced diet
breastfeeding
Why: Supports increased protein and micronutrient requirements
Recommendation: Include lean cuts for nutrient needs
🔬 Detailed Nutrition Profile (USDA)
Common Portions
1.00 steak
(312.00g)
4.00 oz
(113.00g)
| Nutrient | Amount | Unit |
|---|---|---|
| Water | 67.4400 | g |
| Energy | 187.0000 | kcal |
| Energy | 782.0000 | kJ |
| Protein | 20.6800 | g |
| Total lipid (fat) | 10.9300 | g |
| Ash | 0.9900 | g |
| Carbohydrate, by difference | 0.0000 | g |
| Fiber, total dietary | 0.0000 | g |
| Total Sugars | 0.0000 | g |
| Calcium, Ca | 23.0000 | mg |
| Iron, Fe | 1.6300 | mg |
| Magnesium, Mg | 22.0000 | mg |
| Phosphorus, P | 201.0000 | mg |
| Potassium, K | 335.0000 | mg |
| Sodium, Na | 60.0000 | mg |
| Zinc, Zn | 3.8500 | mg |
| Copper, Cu | 0.0890 | mg |
| Manganese, Mn | 0.0130 | mg |
| Selenium, Se | 24.7000 | µg |
| Vitamin C, total ascorbic acid | 0.0000 | mg |
| Thiamin | 0.0840 | mg |
| Riboflavin | 0.1100 | mg |
| Niacin | 6.0710 | mg |
| Pantothenic acid | 0.5860 | mg |
| Vitamin B-6 | 0.6150 | mg |
| Folate, total | 11.0000 | µg |
| Folic acid | 0.0000 | µg |
| Folate, food | 11.0000 | µg |
| Folate, DFE | 11.0000 | µg |
| Choline, total | 86.4000 | mg |
| Betaine | 12.7000 | mg |
| Vitamin B-12 | 1.2300 | µg |
| Vitamin B-12, added | 0.0000 | µg |
| Vitamin A, RAE | 0.0000 | µg |
| Retinol | 0.0000 | µg |
| Carotene, beta | 0.0000 | µg |
| Carotene, alpha | 0.0000 | µg |
| Cryptoxanthin, beta | 0.0000 | µg |
| Vitamin A, IU | 0.0000 | IU |
| Lycopene | 0.0000 | µg |
| Lutein + zeaxanthin | 0.0000 | µg |
| Vitamin E (alpha-tocopherol) | 0.3500 | mg |
| Vitamin E, added | 0.0000 | mg |
| Tocopherol, beta | 0.0000 | mg |
| Tocopherol, gamma | 0.0000 | mg |
| Tocopherol, delta | 0.0000 | mg |
| Vitamin K (phylloquinone) | 1.4000 | µg |
| Fatty acids, total saturated | 4.3030 | g |
| SFA 4:0 | 0.0000 | g |
| SFA 6:0 | 0.0000 | g |
| SFA 8:0 | 0.0000 | g |
| SFA 10:0 | 0.0350 | g |
| SFA 12:0 | 0.0240 | g |
| SFA 14:0 | 0.3350 | g |
| SFA 16:0 | 2.6250 | g |
| SFA 18:0 | 1.2840 | g |
| Fatty acids, total monounsaturated | 4.7230 | g |
| MUFA 16:1 | 0.5560 | g |
| MUFA 18:1 | 4.1510 | g |
| MUFA 20:1 | 0.0150 | g |
| MUFA 22:1 | 0.0000 | g |
| Fatty acids, total polyunsaturated | 0.4170 | g |
| PUFA 18:2 | 0.2720 | g |
| PUFA 18:3 | 0.1240 | g |
| PUFA 18:4 | 0.0000 | g |
| PUFA 20:4 | 0.0220 | g |
| PUFA 20:5 n-3 (EPA) | 0.0000 | g |
| PUFA 22:5 n-3 (DPA) | 0.0000 | g |
| PUFA 22:6 n-3 (DHA) | 0.0000 | g |
| Cholesterol | 72.0000 | mg |
| Tryptophan | 0.1360 | g |
| Threonine | 0.8260 | g |
| Isoleucine | 0.9410 | g |
| Leucine | 1.6450 | g |
| Lysine | 1.7480 | g |
| Methionine | 0.5390 | g |
| Cystine | 0.2670 | g |
| Phenylalanine | 0.8170 | g |
| Tyrosine | 0.6590 | g |
| Valine | 1.0260 | g |
| Arginine | 1.3370 | g |
| Histidine | 0.6600 | g |
| Alanine | 1.2570 | g |
| Aspartic acid | 1.8840 | g |
| Glutamic acid | 3.1050 | g |
| Glycine | 1.2590 | g |
| Proline | 0.9860 | g |
| Serine | 0.8150 | g |
| Hydroxyproline | 0.2170 | g |
| Alcohol, ethyl | 0.0000 | g |
| Caffeine | 0.0000 | mg |
| Theobromine | 0.0000 | mg |
Source: USDA FoodData Central (FDC ID: 168700)
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