Yes, pork is a complete protein. It contains all nine essential amino acids your body cannot make on its own, and it delivers them in a highly digestible form. A 3-ounce cooked serving of pork provides about 24 grams of protein regardless of the cut, making it one of the more protein-dense options in a typical diet.
What Makes Pork a Complete Protein
A protein is “complete” when it supplies all nine essential amino acids in sufficient amounts. Pork clears that bar easily. Research from the University of Illinois measured pork’s protein quality using the Digestible Indispensable Amino Acid Score (DIAAS), which is the gold standard metric recommended by the World Health Organization. Every pork product tested scored above 100, meaning pork doesn’t just meet the threshold for a complete protein; it exceeds it.
For context, a DIAAS of 100 means the food provides 100% of the most limiting essential amino acid relative to human needs. Pork loin cooked to 63°C scored 139 for older children and adults. Smoked-cooked bacon hit 142. Even the lowest-scoring pork products landed around 117. These numbers put pork solidly in the “excellent” protein quality category alongside other animal proteins like beef, eggs, and dairy.
Plant proteins, by comparison, are often low in at least one essential amino acid, typically lysine, methionine, or cysteine. That doesn’t make them useless, but it means you need to combine different plant sources to get a complete amino acid profile. With pork, that’s handled in a single serving.
How Well Your Body Absorbs Pork Protein
Having all the amino acids is only half the equation. Your body also needs to break down and absorb them efficiently, and pork performs well here too. In lab studies simulating human digestion, pork showed significantly higher digestibility than plant-based meat alternatives during both the stomach and intestinal phases. Digestion of pork also produced a greater number of small peptides, which are the building blocks your body actually puts to use.
This matters practically because two foods can list the same grams of protein on a nutrition label while delivering very different amounts to your muscles and organs. The protein in pork is more bioavailable than protein from most legumes, grains, or plant-based meat substitutes. If you’re counting protein intake for fitness or health goals, the grams on pork’s label are close to what your body actually gets.
Protein and Calories Across Common Cuts
One of the useful things about pork is how consistent its protein content stays across cuts. The calorie and fat differences, however, vary quite a bit.
- Pork tenderloin (roasted): 120 calories, 24g protein per 3-ounce serving. This is the leanest cut, with roughly 3g of total fat.
- Boneless top loin chop (broiled): 160 calories, 24g protein.
- Loin chop (broiled): 180 calories, 24g protein.
- Rib chop (broiled): 190 calories, 24g protein.
Tenderloin stands out as especially lean. At 120 calories for 24 grams of protein, it’s comparable to skinless chicken breast in terms of protein density. Fattier cuts like ribs climb steeply: a 3-ounce serving of untrimmed ribs packs 337 calories, 26 grams of fat, and 10 grams of saturated fat.
How Pork Compares to Other Meats
Lean pork falls between chicken breast and beef in terms of saturated fat. A broiled lean pork chop has about 3 grams of saturated fat per 3-ounce serving. Roasted chicken breast has 0.8 grams for a comparable portion. Trimmed beef sirloin sits at 2.4 grams. So chicken wins on leanness, but pork chops aren’t far behind trimmed beef, and they’re well ahead of ground beef, which carries about 6 grams of saturated fat per serving.
The protein content is remarkably similar across all these meats, hovering around 24 grams per 3-ounce cooked serving. The real differences show up in fat content and micronutrients.
Nutrients Beyond Protein
Pork brings more to the table than just amino acids. A 3-ounce serving of roasted tenderloin is an excellent source of thiamin (vitamin B1), selenium, niacin, vitamin B6, and phosphorus. It also provides meaningful amounts of riboflavin, zinc, potassium, and vitamin B12.
Thiamin is particularly notable because pork is one of the richest dietary sources. Among people who regularly eat fresh pork, it accounts for 23% to 31% of their total selenium and thiamin intake. Thiamin plays a central role in converting food into energy, and most other common meats provide far less of it. Selenium supports thyroid function and acts as an antioxidant, and zinc is essential for immune function and wound healing.
Fresh Pork vs. Processed Pork
The protein quality of processed pork products like bacon and ham remains high. Their DIAAS scores still exceed 100. But processing introduces trade-offs worth knowing about.
Fresh pork contains virtually no nitrite and only trace amounts of nitrate, around 15 mg/kg on average. Cured and processed products can contain higher levels, though regulations in most countries cap the amounts. The bigger practical concern with processed pork is sodium: ham, bacon, and sausage are typically much higher in salt than fresh cuts.
The 2025-2030 Dietary Guidelines for Americans include pork among recommended protein sources alongside chicken, eggs, seafood, beans, and legumes, with an emphasis on choosing nutrient-dense, high-quality options. In practice, that means fresh or minimally processed cuts give you the same complete protein with fewer added ingredients.
Cooking Temperatures for Safety
Whole cuts of pork (steaks, chops, roasts) are safe at an internal temperature of 145°F (62.8°C) followed by a 3-minute rest. Ground pork needs to reach 160°F (71.1°C) with no rest required. These are the same thresholds that apply to beef, veal, and lamb. The old advice to cook pork until it’s well done is outdated; at 145°F, pork will still have a slight pink center, which is perfectly safe and keeps the meat tender.