Meat types and cuts, quality, storage, food safety, nutrition and the cooking science behind better results.
Meat kept continuously frozen at 0°F (-18°C) remains safe indefinitely, but texture, flavor and juiciness gradually decline. Ground meat is generally best within 3–4 months, while many whole beef cuts can retain good quality for 4–12 months and fresh pork cuts for about 4–6 months.
Cooked 90/10 ground beef is about 230 calories, 28.4 g protein and 12 g fat per 100 g. Cooked 84/16 pork is about 289 calories and 20 g fat, while 96/4 pork drops to about 187 calories and 7.2 g fat. Fat percentage changes the result more than species alone.
At 0 °F (-18 °C), USDA lists best-quality times of up to 1 year for whole raw chicken, 9 months for parts, 3–4 months for ground chicken and about 4 months for cooked leftovers. Continuously frozen chicken remains safe longer, but quality declines.
The label matters more than the animal name. Cooked 90/10 ground beef is about 230 calories, 28.5 g protein and 12 g fat per 100 g; cooked 93/7 turkey is about 213 calories, 27.1 g protein and 11.6 g fat. Beef supplies more iron and zinc in these references.
“Lean meat” depends more on the cut than the animal. Skinless turkey breast can fall around 1–3 grams fat per 100 grams cooked, chicken breast 3–4 grams, pork tenderloin 3–5 grams, and very lean beef round roughly 5–8 grams.
Beef does not have one nutrition number. Lean cooked cuts often provide about 26–30 g of protein and 5–10 g of fat per 100 g, while a marbled ribeye can exceed 20 g of fat. Iron varies less, with many cuts around 2–3 mg/100 g.
Pork ranges from very lean tenderloin—about 26–28 g protein and 3–5 g fat per 100 g cooked—to pork belly with more than 45 g fat. The cut matters far more than the generic label “pork.”
Skinless cooked turkey breast has about 29–30 g protein and 1–2.5 g fat per 100 g. Thigh can rise to 6–8 g fat, while cooked 93% lean ground turkey can reach 10–13 g, with protein still fairly similar.
Chicken breast is not the only high-protein part of the bird. Most cuts provide substantial protein, but fat changes much more. Skinless roasted breast is around 31 g protein and 3–4 g fat per 100 g; skin-on wings can approach 18–20 g fat.
Red and white meat can provide almost the same amount of protein when lean cuts are compared. Red meat—beef, pork and lamb—usually provides more heme iron and vitamin B12, while white meat such as poultry can be leaner in cuts like breast. For fat and calories, the cut, skin and processing matter more than the color category.
Cooked skinless chicken and turkey breast both provide roughly 29–31 grams of protein per 100 grams. Turkey breast can be a little leaner and lower in calories, but the difference between breast, thigh and skin-on meat is larger than the difference between the two birds.
Lean beef and lean pork can provide very similar amounts of protein. Beef usually supplies more iron and vitamin B12, while pork is notably rich in thiamin. For fat and calories, the specific cut matters more than whether the meat came from cattle or pigs.