Port of Subs under 600 calories: 113 orders, ranked

Of the 197 single orders we track at Port of Subs, 113 come in at or under 600 calories — 57%. The most protein in one item under 600 is the Grilled Chicken Buffalo Melt (Medium), 48 g for 550 calories; the most filling by protein and fiber per calorie is the Grilled Chicken Spinach Salad (35 g protein, 3 g fiber, 230 cal). 93 entrées fit under 600; 73 do not.

Source: Port of Subs nutrition guide (official) · Data refreshed October 16, 2026

• 113 orders under 600
• 48g most protein in one item
• 48g protein in a full meal
• 73 entrées over 600

As of October 2026, 113 of the 197 Port of Subs single orders we track come in at or under 600 calories, and the most protein in a complete Port of Subs meal under 600 is 48 g (A medium Grilled Chicken Buffalo Melt and a 21-ounce Coca-Cola Zero Sugar).

Three complete Port of Subs meals under 600 calories

Under 600, the most-protein meal is built on the Grilled Chicken Buffalo Melt (Medium) (550 cal), which leaves 50 calories for its sides and drink. One meal-sized entrée, up to two different sides and a drink — the MinMax app's meal and the best under the cap, drink included (water only where no published drink fits; the lightest meal takes a zero-calorie drink, or water). The lightest meal is unchanged from under 500; the others use the extra 100 calories.

Build your own Port of Subs order under 600 calories → Swap any item, add a side, share the link.

Every Port of Subs order under 600 calories, ranked by protein

Single orders only — no desserts, kids' meals, combos, sauces or toppings — by grams of protein, then calories. The median order under 600 is 360 calories and 93 of the 113 are entrées. Figures as Port of Subs published them, rounded to whole numbers (how we check them).

What 600 calories buys at Port of Subs

Going from 500 to 600 calories adds 23 orders: Meatball Marinara (Small) (510), Macaroni Salad (Regular) (520), Classic Sub #9 (Medium) (530), Classic Sub #2 (Medium) (540), Classic Sub #8 (Medium) (540), Classic Sub #10 (Medium) (550), Classic Sub #11 (Medium) (550) and Classic Sub #13 (Medium) (550) and 15 more.

What doesn't fit under 600

73 of 166 Port of Subs entrées are over 600 calories; the lightest of them, the All American Club (Medium), misses by 10 calories at 610. Tighter budget: Port of Subs under 500. Closest misses: All American Club (Medium) (610), Classic Sub #10 - Wrap (610), Classic Sub #18 - Wrap (610), Classic Sub #11 - Wrap (620) and Classic Sub #13 - Wrap (620).

More at Port of Subs

• Port of Subs calories & nutrition (394 items listed)
• Port of Subs under 300 calories (38 orders)
• Port of Subs under 400 calories (75 orders)
• Port of Subs under 500 calories (90 orders)
• High-protein Port of Subs orders (100 items)
• Port of Subs calorie calculator (build an order under your cap)

Under 600 calories at other chains

The same cap at 3 Subs & sandwiches chains, or the cross-chain pillar: fast food under 500 calories (the 600-calorie cap has no cross-chain page yet).

• Capriotti's under 600
• QuikTrip under 600
• Sheetz under 600