Dark meat refers to the portions of poultry that come from muscles the bird uses frequently, like the legs and thighs. These hard-working muscles contain higher levels of a protein called myoglobin, which stores oxygen in muscle tissue and gives the meat its darker, reddish-brown color. White meat, by contrast, comes from muscles used less often, like the breast and wings of a chicken or turkey.
Why Some Cuts Are Darker Than Others
The color difference comes down to one protein: myoglobin. Myoglobin doesn’t circulate in the blood. It sits inside muscle cells, holding onto oxygen so the muscle can use it during sustained activity. The more a muscle works, the more myoglobin it needs, and the darker it appears. In its raw state, myoglobin is purplish-red. When exposed to air, it turns a brighter cherry-red. After cooking, it shifts to brown.
Chickens and turkeys spend most of their lives standing and walking, so their leg and thigh muscles are constantly active. Those muscles develop dense networks of blood vessels and pack in more myoglobin to keep up with oxygen demand. The breast muscles, which would power flight, rarely get used in domesticated birds. With little need for sustained oxygen delivery, breast meat stays pale.
Not All Birds Have White Meat
Ducks and geese are birds of flight, and that changes everything. Because their breast muscles actually work hard during migration and regular flying, those muscles need just as much oxygen as their legs. The result: duck and goose breast meat is noticeably darker than chicken or turkey breast. Game birds that spend significant time in the air can have breast meat nearly as dark as their leg meat. The USDA still classifies duck and goose as poultry, but the color and flavor profile of their meat is much closer to what most people associate with dark cuts.
Dark Meat Has More Fat and Connective Tissue
Beyond color, dark meat is structurally different from white meat. Muscles that do more work need more reinforcement, so dark meat contains significantly more connective tissue, particularly collagen. It also carries more intramuscular fat. Together, these give dark meat its richer, more robust flavor compared to the leaner, milder taste of breast meat.
That extra collagen is also why dark meat behaves differently during cooking. When collagen starts to break down (around 140°F and above), it converts into gelatin, which keeps the meat moist and gives it a silky, tender texture. This is why chicken thighs are far more forgiving than breasts. Overcook a breast by a few degrees and it turns dry and chalky. Overcook a thigh and the extra collagen and fat compensate, keeping the meat juicy. Many cooks actually prefer dark meat cooked well past the minimum safe temperature, around 190 to 200°F, because that’s where the collagen has fully broken down and the texture becomes fall-apart tender.
Nutritional Differences
Dark meat is slightly higher in calories and fat than white meat, but it also delivers more of certain minerals. A cup of cooked dark chicken meat contains about 4 mg of zinc, compared to less than 1 mg in the same amount of raw light meat. Dark meat is also a better source of iron, thanks in part to all that myoglobin (which itself contains iron at its core).
The two types of meat are closer than you might expect on vitamins. Both provide B vitamins, and the B12 content of dark and light turkey meat is nearly identical (about 1.4 mg per 3-ounce serving). Dark meat does contain more total fat, but much of it is unsaturated. The calorie gap between a skinless chicken thigh and a skinless chicken breast is modest enough that choosing between them is more about flavor preference than a major nutritional tradeoff.
Which Cuts Count as Dark Meat
On a chicken or turkey, dark meat includes the thighs, drumsticks, and the meat running along the back. White meat is the breast and the wings. Wings are technically light meat because the flight muscles in domesticated poultry are rarely used, though wings are often cooked with skin and sauce that mask the distinction.
At the grocery store, dark meat is consistently cheaper than white meat in the United States, largely because American consumers have historically preferred breast meat. In many other cuisines, thighs and legs are the prized cuts precisely because of their flavor and resilience during braising, grilling, and stewing. If you’ve ever noticed that a slow-cooked chicken thigh tastes better than a slow-cooked breast, the collagen and fat content of dark meat is the reason.
Cooking Dark Meat
The USDA recommends cooking all poultry, both dark and white, to a minimum internal temperature of 165°F. That’s the safety threshold for killing harmful bacteria. But while breast meat is best pulled right at 165°F to avoid drying out, dark meat benefits from going higher. At 175 to 205°F, the collagen in thighs and drumsticks melts into gelatin, transforming what would otherwise be chewy connective tissue into something rich and tender. This is why dark meat is ideal for slow cooking methods like braising, roasting, and smoking, where prolonged heat has time to work on that collagen.
Dark meat also holds up better to bold seasonings and sauces. Its stronger flavor doesn’t get lost under a marinade the way mild breast meat sometimes can. For grilling, thighs are less likely to dry out over high heat, making them a more reliable choice for backyard cooking where precise temperature control is harder to manage.