Subway's reputation as the healthy fast-food option is half earned. The building blocks are genuinely good — lean proteins, unlimited fresh vegetables, portion control by size — but the default builds carry more sodium and more sauce calories than most people expect. The difference between a good Subway order and a bad one is four decisions.

The four decisions that matter

  1. Protein. Turkey, roast beef, rotisserie chicken and oven-roasted chicken are the lean end. Anything cured — salami, pepperoni, ham, bacon — is where the sodium and fat live.
  2. Bread or bowl. A 6-inch roll is roughly 190–210 calories and ~37 g carbs. A No Bready Bowl removes that entirely and usually gives you more filling.
  3. Cheese. One portion is 40–80 calories. Not a problem; double cheese plus mayo is.
  4. Sauce. The biggest hidden variable. Mayo is ~100+ calories per 6-inch portion; vinegar, mustard and hot sauce are near zero. Full list in the sauces guide.

Best orders by goal

GoalOrderApprox.
Lowest calorie sub6-inch Veggie Delite, no cheese, vinegar~230 cal
Lowest calorie with meat6-inch turkey, no cheese, veg, mustard~280 cal
High protein, moderate calories6-inch roast beef, double meat, provolone, no mayo~430 cal, ~40 g protein
Low carbTurkey or chicken No Bready Bowl, oil and vinegar~250–350 cal, ~10 g carbs
Full lunch under 5006-inch rotisserie chicken, provolone, loaded veg, mustard, water~420 cal
Lowest sodiumRotisserie chicken or turkey, no cheese, vinegar and pepper only~600–750 mg

Detailed macro tables for the low-carb route are in the keto and low-carb guide, and per-sub calories are in the nutrition guide.

The sodium problem

This is the honest weakness. A Footlong cured-meat sub can carry 2,000–2,700 mg of sodium — most or all of a day's recommended intake — before chips. Practical mitigation: choose a single-protein sub over a multi-meat one, skip the cheese or the sauce rather than loading both, and pair with water instead of a soda. Turkey and rotisserie chicken are the lowest-sodium meats on the line; the B.M.T. and Spicy Italian are the highest.

Best bread choices

  • Hearty Multigrain — best fibre-to-calorie ratio of the rolls.
  • Artisan Italian — the plainest and lowest in sodium.
  • Avoid Italian herbs & cheese if you are counting; it adds fat and salt to the bread itself.
  • Flatbread is not the light option — it usually has slightly more calories than plain Italian. See flatbread and bread types.

Traps that quietly ruin a good order

  • "Make it a meal." Chips and a soda add 300–500 calories to a 400-calorie sub — see chips and sides.
  • Salads with heavy dressing. A salad plus creamy dressing can beat a 6-inch sub on calories; oil and vinegar keeps it honest. Comparison in wraps, bowls and salads.
  • Wraps. A tortilla is often 250–300 calories on its own — more than the bread it replaces.
  • Footlong by default. A 6-inch plus loaded free vegetables satisfies most people; the value argument is in Footlong vs 6-inch.
  • Sidekicks at the till. The Footlong Cookie is 1,000+ calories.

Ordering it accurately

Build the sandwich in the app and the calorie count updates as you add each item — the only way to know your real number, since portions differ slightly by store. See the app guide. If you have allergies or intolerances, read the allergen guide first; shared prep surfaces are the limiting factor, not the ingredients.

This is general nutrition information, not medical or dietary advice. We are an independent guide and not affiliated with Subway; verify current values on official channels before relying on them.

FAQ

What is the healthiest thing to eat at Subway?

A turkey or rotisserie chicken No Bready Bowl, or a 6-inch of the same on multigrain with no mayo and loaded vegetables.

What is the lowest calorie Subway sandwich?

The 6-inch Veggie Delite without cheese, around 230 calories.

Is Subway actually healthy?

It can be one of the better fast-food choices, mainly because you control the protein, sauce and portion. The default builds are saltier than most people assume.

Is a Subway salad better than a sub?

Only if the dressing is light. With creamy dressing a salad can exceed a 6-inch sub's calories.