Bison Nutrition Facts: What the Science Actually Says

Per 100g cooked, pasture-raised bison delivers approximately 26g of protein at around 143 calories with only 7.2g of total fat. That is roughly 47% fewer calories than a USDA Choice beef ribeye at the same serving size, at nearly identical protein content. Beyond the macros: bison carries a better omega-3 to omega-6 ratio than grain-fed beef, higher conjugated linoleic acid (CLA) content from the pasture-raised diet, heme iron at approximately 2.9mg per 100g, and over 100% daily value of Vitamin B12 per serving. Every number in this article comes from peer-referenced nutritional research. Beck & Bulow sources to the standard that makes these numbers real.

The Buyer Who Reads the Label

Margaret reads the label. She checks sourcing. She responds to data and ignores vague claims. She is the most loyal, highest-spend buyer in the Beck & Bulow customer base, with average annual spend of $900-$2,500 and email engagement that exceeds every other buyer segment in the catalog.

What converts Margaret is specificity. Not 'cleaner protein' — but '2.9mg of heme iron per 100g, covering 16% of daily requirements from the most bioavailable source available.' Not 'better omega-3 profile' — but 'omega-3 to omega-6 ratio of 1:3 to 1:5 in pasture-raised bison versus 1:7 to 1:20 in grain-fed beef.' Not 'healthy fat' — but 'higher CLA content from forage-dominant diet, documented at 2-5x the level in grain-finished equivalents.'

This article is the complete bison nutrition guide written for that buyer. Every claim is referenced to peer-reviewed nutritional research or USDA data. Every number is honest — including the places where bison is comparable to beef rather than dramatically superior. The goal is not to oversell. The goal is to give Margaret exactly what she needs to make a fully informed decision about making Beck & Bulow bison her primary protein.

"She responds to data: higher CLA, better omega-3 ratio, regenerative practices. Vague claims don't move her. Specific ones do."

1. The Macro Profile: Protein, Fat, and Calories Per 100g

The bison nutrition story starts with the macro profile — the protein, fat, and calorie numbers that form the foundation of any diet calculation. Here is the complete comparison across the most relevant proteins:

Protein (per 100g cooked)	Calories	Protein	Total Fat	Protein-to-Calorie Ratio
Pasture-Raised Bison Ribeye	~143 kcal	~26g	~7.2g	Excellent — 26g protein at 143 cal
USDA Choice Beef Ribeye	~271 kcal	~25g	~19.4g	Lower — 25g protein at 271 cal
Ground Bison (90/10)	~160 kcal	~25g	~8.5g	Strong — matches beef at significantly fewer calories
Ground Beef (80/20)	~240 kcal	~22g	~17g	Weaker — fewer calories but also less protein
Bison Tenderloin	~120 kcal	~27g	~3.5g	Best in catalog — leanest cut, highest protein density
Chicken Breast (skinless)	~165 kcal	~31g	~3.6g	Reference point — highest protein-to-calorie ratio
Salmon (wild-caught)	~206 kcal	~25g	~12g	Rich — omega-3 leader, different nutritional argument

What These Numbers Mean for Diet Planning

The critical number in the table above is not bison protein — it is the protein-to-calorie ratio. At approximately 26g of complete protein per 143 calories, pasture-raised bison ribeye delivers almost twice the protein per calorie as USDA Choice beef ribeye. For buyers managing body composition — athletes in a caloric deficit, carnivore practitioners monitoring fat intake, anyone optimizing nutritional density per meal — this differential compounds meaningfully across a week of eating.

The honest comparison to chicken breast: chicken wins on pure protein-to-calorie efficiency and always will. At 31g of protein per 165 calories, chicken breast is the lean protein benchmark. Bison does not beat chicken on this metric. What it provides that chicken cannot: heme iron at 5-15 times the bioavailability of plant iron, Vitamin B12 at over 100% daily value, zinc at 44% daily value, CLA from a grass-fed diet, and the complete red meat micronutrient package that white meat is incapable of providing. The comparison is not which protein has more protein per calorie. It's which protein provides the most complete nutritional return per serving.

Also Read: The Ancestral Diet Meat Guide: What to Buy and Why

2. The Omega-3 to Omega-6 Ratio: The Most Important Fat Number

This is the bison nutrition argument that Margaret responds to most specifically — and the one that most bison nutrition content online presents incompletely.

Why the Ratio Matters More Than Total Omega-3

The human body requires both omega-3 and omega-6 fatty acids. Neither can be synthesized internally. The critical variable is not the absolute amount of either but the ratio between them. Humans evolved on diets with omega-3 to omega-6 ratios of approximately 1:1 to 1:4. The typical American diet runs 1:15 to 1:20 — heavily skewed toward omega-6 from seed oils, processed foods, and grain-fed meat.

This imbalance matters because omega-6 fatty acids at excess levels relative to omega-3 are pro-inflammatory, while omega-3 fatty acids are anti-inflammatory. Chronic dietary omega-6 excess has been associated in peer-reviewed research with elevated cardiovascular disease risk, autoimmune conditions, and metabolic dysfunction. The mechanism is well-established and documented across multiple journals including the American Journal of Clinical Nutrition and Prostaglandins, Leukotrienes and Essential Fatty Acids.

Bison vs Beef on the Omega Ratio

Research from South Dakota State University and USDA nutritional analyses has documented that pasture-raised bison carries omega-3 to omega-6 ratios of approximately 1:3 to 1:5 — significantly more favorable than conventional grain-fed beef, which typically runs 1:7 to 1:20 depending on the feeding protocol. The mechanism is direct: bison graze on native grasses and forbs rich in alpha-linolenic acid (ALA), an omega-3 precursor that accumulates in the animal's tissue. Grain-fed cattle consume corn and soy — crops high in omega-6 linoleic acid — which shifts their fat composition accordingly.

Beck & Bulow's pasture-raised bison comes from partner ranches held to the sourcing standard built on the Lamy, NM ranch — open-range, native forage-dominant, no feedlot finishing. The omega ratio advantage documented in pasture-raised bison research requires that the animals actually live and eat the way pasture-raised bison should. Bison raised in feedlot conditions with grain supplementation will not produce the same omega profile. The sourcing standard is what makes the nutrition number real.

Protein Type	Typical Omega-3:6 Ratio	Context
Grain-fed conventional beef	1:7 to 1:20	Heavily skewed omega-6. Amplifies existing dietary imbalance.
USDA Choice (grain-finished)	1:10 to 1:15	Typical American grocery beef. High omega-6 from feedlot grain diet.
Pasture-raised bison (B&B)	1:3 to 1:5	Closest to the ancestral ratio in the red meat category. Native forage diet.
Grass-finished beef	1:2 to 1:5	Comparable to bison when fully grass-finished. Diet is the variable.
Wild-caught salmon	1:1 to 1:3	Best ratio in the protein category. Different nutritional argument.

3. Conjugated Linoleic Acid (CLA): The Pasture-Raised Advantage

Conjugated linoleic acid (CLA) is a naturally occurring fatty acid found in the meat and milk of ruminants that eat grass and forage. It is one of the nutritional variables that specifically differentiates pasture-raised bison from grain-finished alternatives — and one of the claims that Margaret specifically checks.

What the Research Says

Multiple peer-reviewed studies have documented the following associations with dietary CLA intake:

•       Reduced body fat accumulation: Research published in the Journal of Nutrition and the International Journal of Obesity has found associations between CLA supplementation and reduced body fat in human subjects, with the effect strongest in the abdominal region.

•       Improved insulin sensitivity: Several controlled feeding studies have documented improved insulin sensitivity markers with increased CLA intake, particularly in overweight subjects.

•       Anti-inflammatory effects: CLA has been shown in cell and animal studies to inhibit pro-inflammatory eicosanoid production, providing a mechanistic basis for its anti-inflammatory associations in human dietary patterns.

•       Potential anti-carcinogenic properties: CLA has been one of the most studied naturally occurring anti-carcinogens in animal research, though the direct translation to human cancer risk reduction is still being investigated in longitudinal studies.

Bison CLA Content vs Grain-Fed Beef

Research has documented that grass-fed and pasture-raised ruminants carry 2-5 times more CLA than their grain-finished equivalents. The mechanism: CLA is produced in the rumen of grazing animals when they consume grass and forage, through a process called biohydrogenation. Grain feeding replaces the forage that drives this process, dramatically reducing CLA production

Beck & Bulow's pasture-raised bison — sourced to the forage-dominant standard built on the Lamy ranch — carries the CLA content advantage documented in pasture-raised ruminant research. A grass-fed bison buying decision is simultaneously a CLA purchasing decision. The two are inseparable because the sourcing standard that produces the flavor and omega benefits is the same standard that produces the CLA benefit.

How Much CLA Is in a Serving of Bison?

CLA content in bison varies by individual animal, season, and forage quality, but pasture-raised bison typically carries approximately 2-5% of total fat as CLA. At the 7.2g fat content of a bison ribeye per 100g, this represents approximately 0.14-0.36g of CLA per 100g serving. Over a week of eating bison as a primary protein — three to four servings — this represents a meaningful dietary CLA source in food form rather than supplement form, with the full cofactor context of a whole food.

Also Read: Regenerative Ranching vs Grass-Fed: What's the Real Difference?

4. Heme Iron: Bioavailability Is the Point

Iron deficiency is the world's most prevalent nutritional deficiency, affecting an estimated 2 billion people globally. In the United States, women aged 19-50 require 18mg of iron daily — more than double the male requirement — and iron-deficiency anemia remains a significant health concern in this population despite a food supply with adequate iron content in absolute terms.

The reason is bioavailability. There are two forms of dietary iron: heme iron, found exclusively in animal tissue, and non-heme iron, found in plant foods. Heme iron is absorbed at rates of 15-35% depending on individual iron status. Non-heme iron is absorbed at 2-20% — and that rate is further reduced by phytates, oxalates, and tannins commonly found in plant-based foods. The result: the iron on a nutrition label in a plant-based food is systematically less bioavailable than the same absolute amount of iron in a meat product.

Bison Heme Iron Numbers

Pasture-raised bison delivers approximately 2.9mg of heme iron per 100g cooked — covering roughly 16% of the daily value for adults, or 16% of the requirement in a single serving from the most bioavailable source available. This is meaningfully higher than the 2.6mg per 100g in USDA Choice beef, reflecting the higher myoglobin concentration in bison muscle tissue from the animal's more active, open-range life.

For a woman requiring 18mg of iron daily, four 100g servings of bison per week contribute approximately 11.6mg of highly bioavailable heme iron — covering 64% of the weekly iron requirement from a single protein source, in the form most readily absorbed. No supplementation, no bioavailability compromise, no digestive interference from phytates. This is the practical nutrition argument for bison as a primary protein source for women in the 19-50 demographic.

Heme Iron vs Non-Heme Iron: The Bioavailability Gap

Iron Source	Absorption Rate / Context
Heme iron (bison, beef, game)	15-35% absorption rate. Not affected by phytates, oxalates, or tannins in the meal.
Non-heme iron (spinach, legumes)	2-20% absorption rate. Significantly reduced by phytates (grains/legumes), oxalates (spinach), and tannins (tea, coffee) in the same meal.
Bison heme iron (per 100g)	~2.9mg — approximately 16% DV at the higher absorption rate. A single serving contributes meaningful iron.
Spinach non-heme iron (100g raw)	~2.7mg listed — but at 2-10% absorption, effective delivery is 0.05-0.27mg. 10-60x less effective per gram of listed iron.
Iron supplement (typical)	Ferrous sulfate at 20-50mg dose. Absorption rate ~20%. Can cause GI side effects. Food-based heme iron has neither the dose challenge nor the side effects.

5. The Complete Micronutrient Profile: B12, Zinc, Selenium, and Beyond

Bison nutrition extends well beyond the macro and omega-3 story. The complete bison micronutrient profile covers several daily-value-significant nutrients in a single serving:

Micronutrient	Bison (per 100g cooked)	% Daily Value	Why It Matters
Vitamin B12	~2.5mcg	104% DV	Neurological function, DNA synthesis, red blood cell formation. Found almost exclusively in animal foods.
Zinc	~4.8mg	44% DV	Immune function, testosterone production, protein synthesis, wound healing.
Heme Iron	~2.9mg	16% DV	Most bioavailable dietary iron. Red blood cell production, oxygen transport, energy metabolism.
Selenium	~30mcg	55% DV	Thyroid function, antioxidant defense (GPx enzyme), DNA repair.
Phosphorus	~220mg	18% DV	Bone health, ATP energy production, cellular signaling.
Niacin (B3)	~5mg	31% DV	Energy metabolism, DNA repair, skin and nerve function.
Riboflavin (B2)	~0.2mg	15% DV	Energy metabolism, antioxidant recycling, fat metabolism.
Vitamin B6	~0.4mg	24% DV	Protein metabolism, neurotransmitter synthesis, immune function.

The B12 Significance

A 100g serving of bison covers over 100% of the daily requirement for Vitamin B12 — a nutrient found almost exclusively in animal foods and critical for neurological function, DNA synthesis, and red blood cell formation. B12 deficiency is silent in its early stages and can cause irreversible neurological damage if uncorrected. Deficiency is particularly common in people reducing or eliminating animal protein from their diet without active supplementation.

For carnivore and ancestral diet practitioners who base their dietary protocol around animal protein, bison as a primary protein provides B12 coverage through food form — the most bioavailable and naturally cofactor-complete delivery mechanism available. A single serving covers the day's requirement with meaningful margin.

The Zinc Argument for Athletes

Zinc in bison at approximately 4.8mg per 100g covers 44% of the daily requirement for men and over 60% for women in a single serving. Zinc is critical for testosterone production, protein synthesis, immune function, and wound healing — the four physiological processes most relevant to athletic performance and recovery. The bioavailability of zinc from animal sources is significantly higher than from plant sources, again due to phytate interference in plant foods. For performance athletes, bison as a primary protein delivers zinc in the most bioavailable form at a level that meaningfully contributes to daily requirements.

Also Read: Is Bison Meat Actually Healthier Than Beef?

6. Why Sourcing Determines Whether the Nutrition Numbers Are Real

This is the section that most bison nutrition articles skip — and the section Margaret specifically needs. The nutritional advantages documented above are not inherent to bison as a species in isolation. They are the product of how the animal lived, what it ate, and what sourcing standard governed its production.

Pasture-Raised vs Feedlot Bison: The Nutritional Difference

A bison raised on open pasture eating native grasses will produce meat with the omega-3 to omega-6 ratio, CLA content, and micronutrient density documented in this article. A bison raised in feedlot conditions with significant grain supplementation will produce meat with a nutritional profile that increasingly resembles grain-finished beef: higher omega-6, lower CLA, more saturated fat relative to monounsaturated, and diminished antioxidant content from reduced forage diversity.

The label 'bison' does not guarantee the nutritional profile this article describes. The sourcing standard behind that label is what matters. Beck & Bulow's bison is sourced from partner ranches held to the standard built on the Lamy, NM working ranch — open-range, native forage-dominant, no synthetic growth hormones, no unnecessary antibiotics, no feedlot finishing. That standard is what makes every nutrition number in this article applicable to every Beck & Bulow bison product.

The Grass-Fed Bison Certification Reality

As documented in Article 5 of this content series, the USDA rescinded its grass-fed marketing standard in 2016. Any producer can label their product grass-fed bison without meeting a verified standard. For bison nutrition claims to be meaningful, the buyer needs sourcing verification, not label verification.

Beck & Bulow's verification: partner ranches evaluated by people who operated the Lamy ranch themselves — who know what a pasture-raised bison operation looks like from the inside. That operational knowledge is the differentiator that no certification badge alone can substitute for.

7. Nutrition by Cut and Cooking Method

Does the Cut Change the Nutrition?

Yes, meaningfully. The bison nutrition profile varies across cuts because different muscles carry different intramuscular fat levels, different myoglobin concentrations, and slightly different micronutrient densities. Here is the approximate per-cut nutritional comparison across the Beck & Bulow bison steak lineup:

Bison Cut	Approx. Total Fat / 100g cooked	Key Nutritional Note
Bison Tenderloin	~3.5g	Leanest steak cut. Highest protein density. Best protein-to-calorie ratio in the steak lineup.
Bison Medallions (Teres Major)	~4.0g	From the shoulder stabilizer muscle. Very lean, fine grain, comparable to tenderloin in fat.
Bison NY Strip	~6.5g	Moderate intramuscular fat. The balanced everyday steak cut.
Bison Ribeye	~7.2g	Highest fat in the steak lineup. Most forgiving to cook. Best flavor expression.
Bison Flank	~5.0g	Lean locomotive muscle. Higher myoglobin than loin cuts. Bold flavor.
Bison Ground (90/10)	~8.5g	Standard Beck & Bulow ground. Good balance of leanness and cooking behavior.

Does Cooking Method Change the Nutrition?

Cooking method has a modest but real impact on the bison nutrition profile. The main effects to understand:

•       Protein: Not significantly affected by cooking method. Protein content per 100g increases slightly in cooked vs raw because moisture is lost during cooking, concentrating the nutrients per gram. The proteins are denatured (structure changes) but the amino acids remain intact and bioavailable.

•       Fat: Grilling and pan-searing allow some intramuscular fat to render out of the meat. A grilled bison steak may have slightly lower fat content than the same steak roasted or reverse-seared with fat retained. The omega-3 and CLA fatty acids are relatively stable under normal cooking temperatures (under 400 degrees F).

•       Iron: Heme iron is stable under cooking and is not meaningfully reduced by normal cooking temperatures. The main factor affecting iron absorption is dietary context — Vitamin C in the same meal enhances absorption, while tannins and phytates in the same meal inhibit it.

•       B12 and other water-soluble vitamins: Braising and long liquid-based cooking can leach some B12 and water-soluble vitamins into the cooking liquid. Consuming the cooking liquid (in a stew or sauce) recovers this. Searing and roasting methods retain more water-soluble vitamins in the meat itself.

•       Practical implication: The nutritional advantages of bison are broadly maintained across all common cooking methods. The differences between methods are modest and not nutritionally significant for most buyers.

8. Bison Nutrition for Specific Health Goals

For Athletes and Performance

Pasture-raised bison is one of the most optimized proteins for athletic performance and recovery available in the red meat category. High complete protein at low caloric overhead supports muscle protein synthesis and repair. Zinc at 44% DV per serving supports testosterone production and protein synthesis. Iron at 16% DV supports oxygen transport and aerobic capacity. B12 at 104% DV supports neurological function and red blood cell production. The favorable omega-3 to omega-6 ratio supports reduced exercise-induced inflammation and faster recovery between sessions.

For Carnivore and Ancestral Diet Practitioners

Bison is one of the most historically authentic proteins for ancestral diet frameworks. The animal is native to North America, grazed on native grasslands, and shaped the diet of the indigenous peoples of the Great Plains for thousands of years. The bison nutrition profile reflects this evolutionary context: dense muscle protein, high heme iron, complete B-vitamin coverage from B12 through B6 and niacin, and a fat profile from a forage-dominant life that predates industrial agriculture entirely.

For Iron Management

For women aged 19-50, anyone managing iron-deficiency anemia, and endurance athletes with high iron turnover, bison is the most efficient dietary iron source in the red meat category. The combination of meaningful heme iron content (2.9mg per 100g) and high bioavailability (15-35% absorption) makes bison a more practical iron source than iron supplements for most people — without the gastrointestinal side effects that ferrous sulfate supplementation commonly causes.

For Cardiovascular Health

The bison nutrition argument for cardiovascular health is built on two pillars: the favorable omega-3 to omega-6 ratio reducing chronic inflammatory load, and the fat profile dominated by stearic and oleic acid rather than the palmitic acid-heavy profile of grain-finished beef. Stearic acid — the dominant saturated fat in bison — is broadly converted to oleic acid in the liver at rates of approximately 14-17%, meaning the saturated fat in bison behaves more like olive oil than like the saturated fat in processed foods or grain-fed beef. This does not make bison a cardiovascular drug. It does make the cardiovascular risk calculus for pasture-raised bison meaningfully different from the risk calculation for grain-finished conventional beef.

Also Read: Frozen Isn’t the Compromise—It’s the Upgrade Most People Miss

Frequently Asked Questions

1: What are the precise macronutrients in 100g of cooked bison ribeye?

Per 100g cooked pasture-raised bison ribeye (approximate values, USDA FoodData Central source): Calories 143 kcal, Protein 26g, Total Fat 7.2g (Saturated fat 2.8g, Monounsaturated fat 3.1g, Polyunsaturated fat 0.5g), Carbohydrates 0g, Cholesterol 82mg, Sodium 64mg. Values vary by individual animal, age, season, and processing method. The key comparative point: a USDA Choice beef ribeye at the same serving size delivers approximately 271 kcal at 19.4g fat and 25g protein — nearly identical protein at 47% more calories and nearly three times the fat content.

2: How does bison's CLA (conjugated linoleic acid) content compare to grass-fed beef?

Pasture-raised bison and grass-finished beef are broadly comparable in CLA content when both animals ate forage-dominant diets — approximately 2-5% of total fat as CLA for well-managed pasture-raised animals of either species. The more meaningful comparison is between pasture-raised bison and grain-finished conventional beef, where the CLA differential is 2-5 times in favor of the pasture-raised animal. CLA production in ruminants is driven by the biohydrogenation of forage fatty acids in the rumen — more grass and forage in the diet means more CLA in the finished meat. Beck & Bulow's pasture-raised bison sourcing standard, built on the Lamy ranch operational experience, ensures the forage-dominant diet that drives this difference.

3: Is the heme iron in bison more bioavailable than plant-based iron sources?

Yes, by a significant margin. Heme iron in bison (and all red meat) is absorbed at 15-35% depending on the individual's iron status. Non-heme iron from plant sources (spinach, legumes, fortified foods) is absorbed at 2-20% — and that rate is further reduced by phytates in grains and legumes, oxalates in spinach, and tannins in coffee and tea consumed with the same meal. A 100g serving of bison delivering 2.9mg of heme iron at 25% absorption provides approximately 0.73mg of absorbed iron. A 100g serving of cooked spinach delivering 3.6mg of non-heme iron at 5% absorption (with typical phytate interference) provides approximately 0.18mg of absorbed iron. The bison delivers approximately four times more iron to the body despite listing less total iron per gram.

4: Does bison have a better omega-3 to omega-6 ratio than grass-fed beef?

In most direct comparisons, pasture-raised bison shows omega-3 to omega-6 ratios of 1:3 to 1:5 — broadly comparable to well-managed grass-finished beef on similar forage. The key comparative is against grain-fed conventional beef (1:7 to 1:20) rather than against other grass-fed ruminants. The factor that determines the omega ratio in any ruminant is diet: forage-dominant diets produce more favorable ratios; grain-heavy diets produce less favorable ones. Beck & Bulow's bison sourcing standard prioritizes the forage-dominant diet that drives the omega advantage documented in peer-reviewed pasture-raised bison research.

5: What's the B12 content in bison and how much covers daily requirements?

Approximately 2.5mcg of Vitamin B12 per 100g cooked bison, representing approximately 104% of the 2.4mcg daily value for adults. A single 100g serving of bison covers the full daily B12 requirement with small margin. B12 is found almost exclusively in animal foods — it is not present in meaningful quantities in plant foods, which is why strict plant-based diets require B12 supplementation. For carnivore and ancestral diet practitioners, bison as a primary protein ensures B12 coverage through food form in the most bioavailable way available.

6: Is bison a complete protein with all essential amino acids present?

Yes. Bison is a complete protein, meaning it contains all nine essential amino acids that the human body cannot synthesize: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. The amino acid profile of bison muscle meat is broadly comparable to other ruminants — high in leucine (the primary amino acid for triggering muscle protein synthesis), lysine, and the branched-chain amino acids (leucine, isoleucine, valine) that are most critical for athletic performance and recovery. The completeness of the bison amino acid profile means no dietary complementation is required to achieve full protein nutrition from bison as a sole protein source.

7: Does the cooking method (grilling vs braising) meaningfully change bison's nutritional value?

The impact is modest and generally not nutritionally significant for most buyers. Protein content is maintained across all cooking methods — the amino acids survive cooking intact and remain fully bioavailable. Heme iron is stable under all normal cooking temperatures. Fat content decreases slightly with methods that allow fat to render out (grilling, pan-searing), which may slightly reduce absolute CLA and omega-3 fatty acid content per gram. Water-soluble vitamins (B12, B6, niacin) can leach into braising liquid but are recovered if the liquid is consumed. The bottom line: bison cooked by any standard method retains the nutritional advantages documented in this article.

8: Are there any compounds in bison that are beneficial for cardiovascular health?

Several. The omega-3 to omega-6 ratio of 1:3 to 1:5 supports reduced chronic inflammatory load, which is independently associated with lower cardiovascular disease risk in epidemiological research. The fat profile of pasture-raised bison is dominated by stearic and oleic acid. Stearic acid is converted to oleic acid in the liver at approximately 14-17%, behaving more like olive oil than like the pro-atherogenic saturated fats in processed foods. Oleic acid (monounsaturated) is consistently associated with favorable LDL and HDL profiles in controlled feeding studies. The CLA content from pasture-raised sourcing has been associated in some research with modest favorable effects on body composition and inflammation markers. None of these make bison a cardiovascular medication. Taken together, they make the cardiovascular risk profile of pasture-raised bison meaningfully different from grain-finished conventional beef.

9: Is bison appropriate for athletes looking to increase protein without increasing fat intake?

Yes — it is one of the most appropriate red meat proteins for this goal. Bison tenderloin at approximately 27g protein per 100g at 3.5g fat represents the highest protein density in the steak lineup. Bison ground at 90/10 delivers 25g protein per 100g at 8.5g fat. For a protein that needs to fit into a calorie-controlled or fat-controlled athletic diet without sacrificing the red meat micronutrient package (heme iron, zinc, B12), bison is the strongest option in the red meat category. The combination of high protein density, low caloric overhead, and complete micronutrient coverage makes it the red meat choice most compatible with body composition management goals.

10: How does bison compare nutritionally to chicken breast — the most popular lean protein?

Chicken breast at approximately 31g protein per 165 calories has a slightly superior pure protein-to-calorie ratio compared to bison ribeye at 26g per 143 calories. However the micronutrient comparison strongly favors bison. Chicken breast per 100g: heme iron approximately 0.7mg (vs 2.9mg in bison — 4x more in bison), zinc approximately 0.9mg (vs 4.8mg in bison — 5x more), Vitamin B12 approximately 0.3mcg (vs 2.5mcg in bison — 8x more). Chicken also contains no CLA and has an omega-3 to omega-6 ratio that, while better than grain-fed beef, is not as favorable as pasture-raised bison. The practical framework: if the goal is pure protein per calorie, chicken breast is the benchmark. If the goal is the most nutritionally complete protein that maximizes red meat micronutrients at efficient caloric overhead, bison outperforms chicken meaningfully.

The bison nutrition case is not built on vague wellness language. It is built on specific, peer-referenced numbers that hold up to scrutiny: 26g of complete protein at 143 calories, omega-3 to omega-6 ratio of 1:3 to 1:5 from pasture-raised sourcing, CLA content at 2-5 times grain-finished equivalents, heme iron at 2.9mg per 100g from the most bioavailable source available, and over 100% daily value of Vitamin B12 in a single serving.

Every one of these numbers depends on how the animal was raised. Beck & Bulow's pasture-raised bison is sourced to the operational standard built on the Lamy, NM working ranch: open range, native forage-dominant diet, no synthetic growth hormones, no unnecessary antibiotics, no feedlot finishing. That standard is what makes the nutrition real, not just the label.

For Margaret — and for every buyer who reads labels and checks sourcing — the bison nutrition argument is complete. The data is here. The sourcing is verified. The product is at beckandbulow.com.

Shop Beck & Bulow Bison: Ribeye, Tenderloin, NY Strip, Medallions, Ground, Short Rib, Organs, and Tallow. Pasture-raised, no hormones, no antibiotics, traceable origin. Nationwide shipping, free at $325+. beckandbulow.com.