Genesee · Answer · Updated 2026-08-25
How does bison nutrition compare to beef nutrition?
Grass-fed bison and lean beef are nutritionally close, but bison tends to edge out beef on a few consistent measures: it typically runs lower in total fat and saturated fat per serving, while delivering comparable or slightly higher protein per 100 grams. USDA data puts cooked ground bison at roughly 24–26g protein and 7–9g fat per 100g, versus lean ground beef at 26g protein and 11–15g fat depending on grind. Bison is also a complete protein, supplying all essential amino acids. Calorie differences are modest — usually 20–40 calories per 100g in bison's favor. Neither is dramatically superior; both are nutrient-dense whole-food proteins worth including in a real-food diet.
Pull up USDA FoodData Central and compare cooked ground bison to 90/10 ground beef side by side. Bison comes in at roughly 24–26g of protein per 100g cooked, with total fat around 7–9g. Lean ground beef — the 90/10 variety most people reach for when they care about macros — lands at a similar protein range but typically carries 11–15g of fat. The calorie gap follows from the fat difference: bison runs somewhere in the 175–195 kcal range per 100g cooked versus 200–215 for comparably lean beef.
Saturated fat is where the difference gets brought up most often. Bison generally has less saturated fat per serving than same-weight portions of beef. Whether that matters to you depends on your overall dietary framework — saturated fat's role in cardiovascular health is genuinely contested in current nutrition science, and plenty of people following whole-food or ancestral diets eat significant saturated fat without concern. The numbers are real; the interpretation is where reasonable people land differently.
Both animals supply complete protein — meaning all nine essential amino acids your body can't synthesize on its own. Bison and beef are also both solid sources of heme iron, zinc, B12, and creatine. If you're comparing bison to plant proteins on amino acid completeness, that's a more lopsided comparison — animal proteins consistently score higher on bioavailability metrics like DIAAS (Digestible Indispensable Amino Acid Score).
The grass-fed variable complicates direct comparisons. Much of the commercially available bison in the U.S. is pasture-raised by default due to how bison are managed, while beef ranges from commodity grain-finished to 100% grass-finished. Grass-finishing in cattle tends to shift the fat profile — more omega-3s relative to omega-6s, higher CLA — which narrows the gap between grass-fed beef and bison. A commodity grain-fed beef comparison versus pasture-raised bison will look more dramatic than a grass-fed-to-grass-fed comparison.