Bison is one of the leanest red meats available. A 4-ounce serving of bison contains just 8 grams of fat and 166 calories, compared to 14 grams of fat and 224 calories in the same serving of beef. That’s roughly 43% less fat, which puts bison in a category closer to skinless chicken breast than to a typical steak.
Bison vs. Beef by the Numbers
The difference between bison and beef is striking when you look at a standard 4-ounce (113-gram) serving side by side:
- Bison: 166 calories, 24 grams protein, 8 grams fat
- Beef: 224 calories, 22 grams protein, 14 grams fat
Bison delivers more protein per calorie than beef, which makes it especially appealing if you’re tracking macros or trying to build muscle without excess calories. The protein-to-fat ratio in bison is roughly 3:1, while beef sits closer to 1.5:1.
Cholesterol Compared to Other Proteins
Cholesterol content is often a concern for people choosing lean meats. Ground bison comes in at about 72 mg of cholesterol per 3-ounce cooked serving. A bison ribeye is even lower at 67 mg. For comparison, a roasted chicken leg with skin has about 108 mg per 3-ounce serving, while cooked chum salmon has 81 mg. Bison holds up well against nearly every common protein source on this measure.
Different bison cuts vary somewhat. A braised chuck shoulder runs higher at 94 mg per 3 ounces, while a top round steak matches ground bison at 72 mg. If cholesterol is a priority for you, leaner cuts like ribeye and top round are the best options.
The Quality of Fat in Bison
It’s not just the amount of fat that sets bison apart. Grass-fed bison has a favorable balance of fatty acids. Omega-6 fats make up about 13.8% of bison’s total fat, while omega-3 fats account for about 3.4%. That works out to a ratio of roughly 4:1, which falls right at the healthiest end of the recommended 4:1 to 10:1 range for omega-6 to omega-3 intake. Most conventional beef has a much higher ratio, often exceeding 10:1, which is linked to greater inflammation over time.
What Bison Does for Heart Health
A randomized, double-blind crossover trial published in Nutrition Research tested what happens when healthy men eat a 12-ounce serving of bison versus a 12-ounce serving of beef. After a single beef meal, triglycerides rose by 67% and oxidized LDL (the type most associated with artery damage) increased by 18%. After a single bison meal, triglycerides rose only 30%, and markers of inflammation and oxidative stress stayed unchanged.
The longer-term results were even more telling. After seven weeks of eating beef six days per week, participants showed significant increases in several inflammatory markers: C-reactive protein rose 72%, interleukin-6 increased 59%, and blood vessel function declined by 19%. Seven weeks of bison at the same frequency produced none of these changes. Neither diet affected body weight or body fat percentage. The researchers concluded that bison carries a lower risk for artery disease compared to beef.
Nutrient Density Beyond Protein
Bison packs more micronutrients per serving than its calorie count might suggest. A cooked 4-ounce portion delivers 68% of the daily value for vitamin B12, which is essential for nerve function and red blood cell production. The same serving provides 35% of daily zinc needs and 13% of daily iron. Both the zinc and iron in red meat are in their most absorbable forms, which matters for people who struggle to get enough from plant sources alone.
This combination of high protein, low fat, and dense micronutrients is part of why bison shows up so often in recommendations for nutrient-dense eating. You get the benefits of red meat without the caloric cost that comes with fattier cuts of beef or pork.
Cooking Tips for Lean Meat
Bison’s low fat content is a nutritional advantage, but it changes how you need to cook it. Less fat means less insulation, so bison cooks faster than beef and dries out quickly if you overshoot the temperature. The safe minimum internal temperature for bison steaks, roasts, and chops is 145°F (63°C) with a 3-minute rest. Ground bison needs to reach 160°F (71°C).
Most bison fans recommend pulling steaks off heat at medium-rare to medium. Cooking beyond medium turns bison tough and chewy because there isn’t enough intramuscular fat to keep the meat moist. Using a meat thermometer is more important with bison than with a well-marbled beef steak, where you have more margin for error. Lower cooking temperatures and shorter times are the general rule. If you’re grilling, reduce heat by about 25°F compared to what you’d use for a similar beef cut.