Beef is a nutrient-dense animal protein providing high-quality complete protein, bioavailable iron, and B vitamins essential for energy metabolism and longevity.
MuscleAntioxidantBrainMetabolismProteinWeight
Nutrition per ~85 g · a palm-sized piece (~3 oz)
Form
136kcal
Protein18.8 g
Carbs0 g
Fat6.2 g
Fiber0 g
Vitamins
Vitamin B121.5 mcg63%
Vitamin B60.54 mg32%
Niacin4.9 mg31%
Riboflavin0.19 mg15%
Biotin2.5 mcg9%
Pantothenic Acid0.29 mg6%
Thiamin43.3 mcg4%
Vitamin E0.24 mg2%
Vitamin K1.1 mcg1%
Folate3.4 mcg1%
Vitamin D0.085 mcg0%
Vitamin D2.5 iu—
Minerals & other
Selenium19.1 mcg35%
Zinc3.3 mg30%
Phosphorus167 mg13%
Choline46.2 mg8%
Iron1.4 mg8%
Copper51.9 mcg6%
Chromium1.7 mcg5%
Potassium224 mg5%
Magnesium9.3 mg2%
Calcium17.8 mg1%
Sodium29.8 mg1%
Manganese2.6 mcg0%
Monounsaturated Fat2.6 g—
Polyunsaturated Fat0.32 g—
Omega60.20 mg—
Cholesterol50.1 mg—
Trans Fat0.26 g—
Saturated Fat2.4 g—
Bioactives estimated
Choline~128 mg
Glutathione~13 mg
Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.
What drives the score weighted inputs
Nutrient density35.0/35Vitamins and minerals relative to calories — the single biggest driver.
Protein quality14.0/15How much protein it delivers, by absolute grams and per calorie.
Bioactives8.4/15Polyphenols, flavonoids and other beneficial plant compounds.
Fiber0.0/10Dietary fiber for gut health, satiety and steadier blood sugar.
Healthy fats4.0/10Fat quality — unsaturated against saturated, and trans-fat free.
Glycemic impact10.0/10Low sugar with a high fiber-to-carb ratio scores best.
These are the scored components, not a sum: the published score also reflects normalisation across the catalog, so the parts above will not add to 71.
Less a 5.0 anti-nutrient penalty (very high saturated fat, high sodium).
MethylationAntioxidantATP / MitoBoneThyroidCollagenNeurotransmitterDetoxGlucoseHematopoiesisLipidsMembranesClottingHPA AxisGlycolysisβ-OxidationKetogenesisNAD⁺mTORAMPKUrea CycleDopamineSerotoninSteroidogenesisVitamin D ActivationInsulin Signaling
Overview
Beef has been a staple protein source across human civilizations for millennia, prized for its exceptional micronutrient density relative to caloric content. Per 100g of lean beef, you obtain 22g of complete protein containing all essential amino acids, making it particularly valuable for muscle maintenance—critical for preventing age-related sarcopenia. The iron content in beef is predominantly heme iron, which has 2-3 times higher bioavailability than plant-based non-heme iron, supporting oxygen transport and mitochondrial function. Beef also provides choline (54.3mg/100g), a compound increasingly recognized as essential for brain health and cellular methylation processes that decline with age. The selenium content (22.5mcg/100g) contributes to glutathione peroxidase production, a primary antioxidant defense system. For longevity-focused nutrition, grass-fed and pasture-raised beef offers additional benefits including higher omega-3 fatty acids and conjugated linoleic acid (CLA), which have emerging evidence for anti-inflammatory and metabolic health effects. Lean cuts minimize saturated fat while maximizing micronutrient concentration.
Health benefits 5
Muscle preservation and strength maintenance with agestrong
Complete protein with high leucine content stimulates mTOR pathway and muscle protein synthesis; bioavailable micronutrients like zinc support protein turnover and hormonal health
Enhanced iron status and oxygen transportstrong
Heme iron has superior absorption rates (15-35%) compared to plant iron; iron is essential for myoglobin, hemoglobin, and cytochrome c oxidase in mitochondrial respiration
Cognitive function and brain healthmoderate
Choline is a precursor for acetylcholine neurotransmitter and phosphatidylcholine in neuronal membranes; supports methylation reactions critical for neuroprotection
Antioxidant defense and cellular protectionstrong
Selenium enables production of selenoproteins including glutathione peroxidase and thioredoxin reductase, primary defenses against oxidative stress and lipid peroxidation
Metabolic flexibility and satiety signalingmoderate
High protein content triggers greater thermogenesis, enhances satiety hormones (GLP-1, peptide YY), and supports metabolic rate; reduces post-meal blood glucose fluctuations
Pairs with
Pair with vitamin C-rich foods (citrus, tomatoes, peppers) to enhance non-heme iron absorption and reduce oxidative stress from iron metabolism
Combine with cruciferous vegetables (broccoli, Brussels sprouts) to amplify Phase II detoxification enzyme expression and reduce heterocyclic amine formation from high-heat cooking
Serve with leafy greens (spinach, arugula) to provide folate and magnesium, supporting methylation cycles and nitric oxide production for vascular health
Pair with fermented foods (sauerkraut, kimchi) to optimize gut microbiota diversity and enhance nutrient absorption, particularly B vitamin synthesis
In the kitchen
Select grass-fed or pasture-raised beef when possible; contains 2-3x higher omega-3 fatty acids and higher CLA compared to grain-fed, with improved fatty acid ratios
Choose lean cuts (sirloin, tenderloin, 93% ground beef) to minimize saturated fat intake while maintaining micronutrient density; aim for 3-4oz portions
Avoid charring at very high temperatures; use moderate heat with marinades containing antioxidants (rosemary, thyme) to reduce heterocyclic amine formation
Store raw beef at 40°F or below and use within 3-4 days; freeze at 0°F for up to 4 months to preserve nutrient quality and food safety
Cook to medium (160°F internal temperature) for food safety; this temperature retains micronutrients better than well-done while eliminating pathogens
When to eat it post workout
Post-exercise window (0-2 hours) maximizes muscle protein synthesis response; beef's complete amino acid profile and high leucine content amplify anabolic signaling when combined with resistance training
Breaks a fast
Beef can be consumed at any meal; post-workout timing offers maximum benefit for muscle maintenance. Evening consumption does not impair sleep and may enhance overnight protein synthesis.