Best Low Sodium Fast Food Options: 15 Picks Under 700 mg

The honest short answer: no mainstream fast food is “low sodium” by the strict FDA label definition (140 mg or less per serving) — but plenty of individual orders come in under 500–700 mg, which is low enough to fit a 1,500–2,300 mg day. The lowest-sodium fast food tends to be small, simple items: basic tacos, plain sliders, grilled chicken pieces, small nugget orders, oatmeal, and undressed salads.

Fifteen real examples, all from official chain nutrition data:

Order	Chain	Sodium	Calories
Rolled & Steel-Cut Oatmeal	Starbucks	125 mg	160
Snack Taco (Crunchy)	Del Taco	135 mg	120
The Original Slider	White Castle	230 mg	140
French Toast Sticks, 3-pc	Burger King	260 mg	230
Crunchy Taco, Fresco style	Taco Bell	270 mg	140
6” Veggie Delite	Subway	280 mg	230
Grilled Chicken Drumstick	KFC	300 mg	80
Chicken McNuggets, 4-pc	McDonald’s	330 mg	170
Chicken Nuggets, 4-pc	Wendy’s	370 mg	180
Hamburger, Protein Style	In-N-Out	390 mg	210
Avocado Toast	Dunkin’	420 mg	250
Greek Salad, half, no dressing	Panera Bread	430 mg	200
Grilled Nuggets, 8-ct	Chick-fil-A	440 mg	130
Hamburger	McDonald’s	510 mg	250
Broccoli Beef	Panda Express	520 mg	150

Numbers are US menu figures verified against official chain nutrition pages as of mid-2026 — recipes change, so confirm in the chain’s own calculator when it matters. Each chain name links to our full sodium-ranked guide for that restaurant.

Not medical advice. Sodium targets vary by person. If you have hypertension, kidney disease, or heart failure, follow your clinician’s guidance on daily limits.

What counts as “low sodium” at a drive-thru?

On a packaged-food label, “low sodium” is a regulated claim: 140 mg or less per serving. Almost no standard fast-food entrée clears that bar — even plain bread and a grilled chicken breast together usually pass it.

So the useful question isn’t “what fast food is low in sodium” by label law — it’s what fits your daily budget. Against the common reference points (2,300 mg ceiling, 1,500 mg ideal):

• Under ~400 mg — a light order. Leaves room for an ordinary day around it.
• ~400–700 mg — a reasonable full meal on most plans.
• 1,000 mg+ — half a strict day or more. Typical for a standard combo, which is why defaults matter.

Every pick in the table above lands under 700 mg as served — no special requests required.

The lowest-sodium pick by category

Searchers usually have a craving, not a spreadsheet. Category winners from our data:

• Burger: White Castle Original Slider (230 mg). Full-size winner: In-N-Out Hamburger, Protein Style (390 mg).
• Chicken: KFC Grilled Drumstick (300 mg) or Chick-fil-A Grilled Nuggets, 8-ct (440 mg) — grilled beats breaded everywhere.
• Tacos / Mexican: Del Taco Snack Taco (135 mg) or Taco Bell Crunchy Taco, Fresco (270 mg).
• Sandwich / sub: Subway 6” Veggie Delite (280 mg) — the lowest standard sub we track.
• Breakfast: Starbucks Steel-Cut Oatmeal (125 mg); Burger King French Toast Sticks, 3-pc (260 mg) if you want something hot.
• Pizza: thin crust, veggie toppings, one slice — roughly 420–520 mg across the big chains.
• Salad: Panera Greek Salad, half, no dressing (430 mg) — dressing is usually the sodium bomb, not the greens.

Why small and simple wins

Notice what the table has in common. None of these items have cheese sauce, bacon, cured deli meat, or a specialty sauce, and most are the smallest size the chain sells. Sodium in fast food concentrates in four places:

1. Cured and processed meats — bacon, sausage, pepperoni, deli slices.
2. Cheese — roughly 150–300 mg per slice or serving.
3. Sauces and dressings — often 200–400 mg per packet or ladle.
4. Bread and breading — the bun plus a crispy coating can add 400+ mg before any filling.

That is why the same chain can be a 300 mg lunch or a 2,300 mg lunch. The brand matters less than the build.

Five swaps that cut sodium fastest

1. Order the smallest size that exists — sliders, snack tacos, 4-pc nuggets, junior burgers.
2. Skip cheese and bacon — the two densest sodium add-ons per calorie.
3. Sauce on the side — dip instead of pour; you’ll use a fraction of it.
4. Grilled over crispy whenever both exist.
5. Fresco-style / no-cheese builds at Mexican chains — pico instead of cheese and creamy sauces.

More detail in our guide to ordering under 800 mg.

What to watch out for

• “Healthy-sounding” defaults that aren’t: many full-size salads with dressing, chicken sandwiches (breaded filet + bun + pickles + sauce), and wraps out-sodium a plain burger.
• Combo creep: a 510 mg burger becomes a 1,200 mg meal once medium fries and two sauce packets join. McDonald’s small fries are 190 mg — size is the whole game.
• Breakfast platters: sausage + cheese + biscuit + hash brown stacks routinely clear 1,500 mg before 9 a.m.
• Drinks are mostly fine — water, unsweetened tea, black coffee, and diet sodas are near-zero. It’s the food that gets you.

FAQ

What fast food is lowest in sodium overall? The lowest standard items we track are snack-size: Del Taco’s Snack Taco (135 mg), White Castle’s Original Slider (230 mg), and Starbucks oatmeal (125 mg) for breakfast. For a full-size entrée, a plain junior hamburger or grilled nuggets in the 330–510 mg range is about as low as drive-thru food goes.

Is any fast food truly “low sodium” by the FDA definition? Almost nothing. The label claim means ≤140 mg per serving, and even basic items like a small fry (190 mg at McDonald’s) exceed it. Plan around your daily budget instead of hunting for the legal claim.

What is the lowest-sodium fast-food burger? White Castle’s Original Slider at 230 mg. Among full-size burgers, In-N-Out’s Protein Style Hamburger (390 mg) and junior/plain burgers in the 500–600 mg range are the realistic floor — the bun, cheese, and sauce do most of the damage.

Can I eat fast food on a 1,500 mg sodium limit? Yes, if the meal stays around 500–700 mg and the rest of the day is plain home food. One careful order per day fits; a standard 1,500–2,500 mg combo does not.

Are salads always the lowest-sodium choice? No. Undressed salads with grilled chicken are excellent (Panera’s half Greek is 430 mg), but once crispy chicken, cheese, croutons, and dressing pile on, salads can pass 1,500 mg — worse than the burger you skipped.

Keep reading

• Low Sodium Fast Food homepage — the 10 lowest-sodium picks across all chains, live from the data
• Lowest Sodium Fast Food Burgers at Every Major Chain, Ranked
• Low Sodium Fast Food PDF: The Printable Cheat Sheet — the lowest order at all 75+ chains, one printable page
• Lowest Sodium Fast Food: How to Order Under 800 mg — the pillar guide with meal-budget tables
• How Much Sodium Per Day? 1,500 vs 2,300 mg Explained
• Low Sodium McDonald’s: Menu Items Ranked
• All 75 chain guides, sodium-ranked

Sources & verification

All figures are US-market values from official chain nutrition calculators and PDFs, compiled and dated on each linked restaurant guide. For the label-claim definitions, see the FDA’s sodium guidance. Menus and recipes change — the chain’s own calculator for your location is the final word.

Last editorial pass: 2026-07-20.