Pastrami and corned beef are nutritionally similar, but corned beef is slightly leaner while pastrami tends to be higher in sodium. Neither qualifies as a “healthy” protein by dietary guidelines standards, since both are processed red meats. The real differences come down to the cuts of beef used and how each is cooked.
The Cuts Make a Difference
Corned beef is typically made from the flat cut of brisket, which is leaner and easier to slice. Pastrami uses the point cut of brisket, which has more marbling and fat running through it. Pastrami can also be made from navel (beef belly from just below the ribs) or deckle (a lean shoulder cut), but the fattier point brisket is most common at delis.
This difference in starting material means corned beef generally has less total fat per serving. Its texture is firmer because of the lower fat content. Pastrami, with its extra marbling, has a richer, more tender bite.
How Cooking Methods Affect Nutrition
Both meats start with the same process: the beef sits in a salt brine for 7 to 10 days. After that, they diverge. Corned beef is boiled or slow-cooked in liquid, sometimes alongside vegetables. Pastrami is coated in a thick crust of black pepper, coriander, mustard seeds, and garlic, then smoked low and slow for 8 to 10 hours before being steamed.
Boiling corned beef can draw out some fat into the cooking liquid, which you discard. Smoking pastrami, on the other hand, renders fat slowly while building flavor, but much of that fat stays in the meat. The spice crust on pastrami does add beneficial compounds like those found in black pepper and coriander, though in small enough quantities that the health impact is minimal.
Sodium: Both Are High
Sodium is the biggest nutritional concern with either option. Both are brined for over a week in a salt solution, which loads the meat with sodium. In a comparison of standard deli products at a 2-ounce serving size, pastrami came in at about 630 mg of sodium while corned beef had roughly 490 mg. That’s a meaningful gap. A typical deli sandwich uses 4 to 6 ounces of meat, so you could easily hit half your daily sodium limit from the meat alone.
If sodium is your main concern, corned beef has a slight edge. But “slight” is the key word here. Both are salty enough to matter if you’re watching your blood pressure or following a low-sodium diet.
Uncured Versions Can Help
Uncured versions of both meats skip the sodium nitrates and nitrites used in traditional curing. These additives preserve the bright red color you see at the deli counter and inhibit bacterial growth, but they’ve been linked to health concerns when consumed regularly. Without them, the meat looks browner and duller, which is normal.
Some uncured brands also happen to be lower in sodium. Laura’s Lean, for example, offers an uncured pastrami at 280 mg of sodium per 2-ounce serving and an uncured corned beef at 330 mg. That’s roughly half the sodium of conventional versions. Products certified by the American Heart Association tend to meet stricter sodium thresholds, so those labels are worth looking for.
Choosing “first cut” or “flat cut” corned beef also helps on the fat side, since these terms refer to the leaner portion of the brisket.
The Bigger Picture: Processed Meat
The U.S. Dietary Guidelines for Americans recommend that most of your meat intake come from fresh, frozen, or canned lean options rather than processed forms like hot dogs, sausages, ham, and luncheon meats. Both corned beef and pastrami fall squarely in the processed category. Dietary patterns higher in processed red meat are consistently associated with worse health outcomes, including higher risks of heart disease and certain cancers.
The guidelines specifically suggest replacing processed or high-fat meats with seafood as a way to reduce saturated fat and sodium intake. So while corned beef has a small nutritional advantage over pastrami (less fat, less sodium), the honest answer is that neither is a great choice for regular eating. As an occasional indulgence, the differences between them are too small to worry about. Pick whichever one you enjoy more, and if you eat deli sandwiches often, consider rotating in turkey, chicken, or fish to balance things out.
Quick Comparison
- Fat content: Corned beef is leaner because it uses the flat brisket cut. Pastrami uses fattier cuts with more marbling.
- Sodium: Corned beef runs around 490 mg per 2-ounce serving versus 630 mg for pastrami in conventional products.
- Cooking: Corned beef is boiled (which removes some fat). Pastrami is smoked and steamed (which retains more fat).
- Nitrates: Both conventional versions contain curing salts. Uncured options are available for both.
- Lower-sodium picks: Uncured brands can cut sodium nearly in half for both meats.