Bison

Food · Protein · Food, Typed Supps

Bison is a lean red meat that's packed with iron and vitamin B12, but its low fat means you have to cook it gently or it turns tough and dry.

Stage by stage

Chewing & Breakdown (Mouth): Chewing and saliva start breaking down bison's dense muscle protein into smaller fragments.
Stomach Digestion (Stomach): Stomach acid unlocks heme iron from myoglobin and begins splitting proteins into peptides.
Intestinal Absorption (Small Intestine): The small intestine absorbs amino acids, heme iron, zinc, and vitamin B12 into the bloodstream.
Muscle & Blood Use (Muscle & Bone Marrow): Amino acids support muscle repair and growth while iron and B12 fuel red blood cell production.

Timing

Bison fits any meal as a main protein source and, unlike plant-based iron, doesn't require pairing with vitamin C to be well absorbed since its iron is heme iron.

Time to effect

Hours to Weeks: Amino acids from a bison meal begin supporting muscle protein synthesis within a few hours, while measurable improvements in iron status or haemoglobin from regular consumption typically take several weeks.

Allergens

None of the fourteen major allergens. Derived from what this food is, not from a product label.

Eating patterns

Fits: Keto, Gluten-free. Depends on the product: Halal, Kosher, Low-FODMAP.

Satiety

198 on the satiety index, where white bread is 100 — very high. Modelled from the Holt et al. (1995) measurements.

Environmental footprint

99.5 kg CO2e and 1451 litres of freshwater per kg, matched to "Beef (beef herd)" in Poore & Nemecek (2018), Science 360.

Cost band

Pricey — roughly £14 per kg, as a band midpoint rather than a price.

Key nutrients

Nutrition per 100g

Calories: 143
Protein: 28g
Carbohydrate: 0g
of which sugars: 0g
Fat: 2.4g
of which saturated: 0.8g
Fibre: 0g
Sodium: 48mg

Food vs. supplement

Bison delivers heme iron and protein-bound B12 alongside zinc and selenium in one food matrix, which the body generally absorbs more efficiently than isolated iron or B12 supplements taken alone.

Kitchen tip

Bison's low fat content means it cooks faster than beef and dries out easily, so use lower heat, avoid overcooking past medium, and consider adding a little extra fat or moisture when grilling or pan-searing.

Common myth

"Bison is basically a health supplement — it's dramatically healthier than beef in every way." In reality: Bison is genuinely leaner and modestly higher in iron, zinc, and B12 than typical grain-fed beef, but the gap versus grass-fed beef is much smaller; it's a solid lean red meat choice, not a categorically different food.

Recipes that use it

Bison Burger