Turkey is slightly leaner than chicken, but the two birds are remarkably close in overall nutrition. A 3-ounce serving of roasted turkey breast has 160 calories and 6 grams of fat, while the same serving of roasted chicken breast comes in at 170 calories and 10 grams of fat. Both deliver 24 grams of protein. The real differences show up in fat content, micronutrients, price, and how easy each one is to cook well.
Protein and Calories: Breast to Breast
When you compare the cuts most people buy, turkey breast and chicken breast, the protein is identical at 24 grams per 3-ounce serving. Turkey pulls slightly ahead on calories (10 fewer) and significantly ahead on fat, with 6 grams compared to chicken’s 10. That 4-gram fat difference adds up if you’re eating poultry daily. Over a week of daily servings, choosing turkey breast over chicken breast would cut roughly 28 grams of fat from your diet without sacrificing any protein.
For anyone focused on building muscle or losing weight, both are excellent choices. Turkey breast simply gives you the same protein in a slightly leaner package.
Where Turkey Stands Out: Micronutrients
Turkey is a strong source of several vitamins and minerals that chicken provides in smaller amounts. Per 100 grams, turkey delivers about 21 micrograms of selenium (roughly 40% of your daily need), 7.6 milligrams of niacin, and 1.2 micrograms of vitamin B12. It also provides a solid dose of B6 at about 0.6 milligrams per 100 grams.
Selenium supports thyroid function and acts as an antioxidant. B12 is essential for nerve health and red blood cell production, and many people don’t get enough of it. Turkey covers a meaningful portion of both in a single serving. Chicken contains these same nutrients but generally in lower concentrations, particularly B12 and selenium.
Where Chicken Wins: Versatility and Price
Chicken is cheaper and easier to find in a wider variety of cuts. A whole chicken averages around $2.03 per pound at U.S. retail, and boneless chicken breast runs about $4.17 per pound. Whole frozen turkeys are typically priced lower per pound than chicken during the holidays but aren’t stocked year-round in most stores. Boneless turkey breast, when available, tends to cost more than its chicken equivalent outside of November.
Chicken is also more forgiving in the kitchen. Turkey breast, because it’s so lean, dries out quickly when overcooked. Chicken breast has a bit more intramuscular fat, which gives it a small margin of error before it turns tough. For weeknight cooking where speed matters more than precision, chicken is the more practical choice. Turkey rewards patience: brining, slower roasting, or using a meat thermometer to pull it right at 165°F makes a real difference.
The Tryptophan Question
Turkey has a reputation for making people sleepy, but the idea that it contains unusually high levels of the amino acid tryptophan is only half true. Turkey does contain more tryptophan than chicken: about 410 milligrams per pound of raw light meat, compared to 238 milligrams per pound for chicken. That’s a real difference. But tryptophan only causes drowsiness when it reaches the brain in large amounts relative to other amino acids, and a high-protein meal actually makes that harder because other amino acids compete for the same entry point.
The post-Thanksgiving sleepiness people associate with turkey is almost entirely caused by overeating, large amounts of carbohydrates (stuffing, mashed potatoes, pie), and alcohol. You’d feel the same way after a large chicken dinner with all the sides.
Processed Versions: Watch the Sodium
One important caveat applies to deli meat. Whether you buy sliced turkey or sliced chicken at the deli counter, the sodium content is roughly the same and often high. A single slice of low-sodium deli turkey or chicken (about 28 grams) still contains around 216 milligrams of sodium. Standard versions can pack 300 to 400 milligrams per slice. Four or five slices on a sandwich can deliver a quarter of your daily sodium limit before you add mustard or cheese.
If you’re comparing turkey and chicken for health, the comparison only holds up for fresh, unprocessed cuts. Once either bird gets brined, cured, or packaged as lunch meat, the nutritional advantage of choosing one over the other largely disappears under a wave of added salt.
Which One Should You Actually Buy?
If your priority is minimizing fat and maximizing micronutrients per calorie, turkey breast is the better choice. It’s leaner, richer in selenium and B12, and delivers identical protein. For people managing their weight or tracking macros closely, those small differences compound over time.
If your priority is convenience, cost, and cooking flexibility, chicken is hard to beat. It’s available everywhere in every cut, costs less, and works in a wider range of recipes without drying out. The nutritional gap between the two is real but not dramatic. Swapping one for the other won’t transform your health. Both are lean, high-protein meats that outperform most other animal proteins on a calorie-for-calorie basis. The best choice is whichever one you’ll actually enjoy eating consistently.