Lowest Sodium Fast Food Burgers at Every Major Chain, Ranked

The burger is the default fast-food order, and it’s where a day’s sodium hides. A typical signature burger runs 1,000–1,400 mg — half to two-thirds of the FDA’s 2,300 mg daily value before fries touch the tray. But the plain hamburger at most chains is a different story: 380–700 mg, because you skip the cheese, bacon, and extra sauce that do most of the damage.

The single lowest full-size burger we track: Burger King’s Hamburger at 380 mg. The best protein-for-sodium deal: Five Guys’ Hamburger at 480 mg with 39 g of protein — their patties are unseasoned, which is exactly why the number is so low.

Every number below comes from official chain nutrition data.

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.

Plain hamburgers, ranked

These are the basic builds — beef, bun, standard toppings, no cheese, no bacon:

Burger	Chain	Sodium	Calories	Protein
Hamburger	Burger King	380 mg	240	13 g
Protein Style Hamburger (lettuce wrap)	In-N-Out	390 mg	210	12 g
Little Hamburger	Five Guys	430 mg	480	23 g
ButterBurger, The Original Single	Culver’s	480 mg	390	20 g
Hamburger	Five Guys	480 mg	700	39 g
Jr. Hamburger	Wendy’s	490 mg	250	13 g
Hamburger	McDonald’s	510 mg	250	12 g
Hamburger	Jack in the Box	570 mg	340	14 g
Jr. Burger	Sonic Drive-In	590 mg	340	15 g
Yumburger	Jollibee	630 mg	360	13 g
Hamburger	In-N-Out	670 mg	360	16 g
Single Steakburger, plain	Freddy’s	680 mg	380	22 g
Classic Smashburger single, no cheese	Smashburger	720 mg	420	24 g
Justaburger	Whataburger	740 mg	300	14 g
Whataburger Jr.	Whataburger	750 mg	310	14 g
Original Hamburger, plain no chili	Original Tommy’s	780 mg	420	24 g
Hamburger, single	Shake Shack	800 mg	400	26 g
Hamburger	Hardee’s	860 mg	450	22 g
Hamburger	Dairy Queen	870 mg	320	15 g

Two patterns worth noticing. First, the whole bottom half of this table is junior-sized — Sonic’s Jr., Whataburger’s Justaburger, Wendy’s Jr. Portion is a legitimate strategy. Second, Five Guys and In-N-Out sit near the top despite being “premium” chains, because neither salts the patty heavily by default.

The slider caveat

White Castle’s Original Slider is 230 mg — the lowest number on any burger we track. But a slider is roughly half a burger, and nobody eats one. Four Original Sliders (a normal order) is 920 mg, which lands you right back in signature-burger territory. Sliders are only a win if you genuinely stop at two.

Signature burgers, ranked

This is where most people actually order, and where the sodium jumps:

Burger	Chain	Sodium	Calories	Protein
Cook-Out Style Burger, regular	Cook Out	920 mg	480	26 g
Whopper	Burger King	980 mg	670	31 g
Big Mac	McDonald’s	1,050 mg	590	25 g
Cheeseburger	Five Guys	1,050 mg	840	47 g
ShackBurger, single	Shake Shack	1,080 mg	500	28 g
Quarter Pounder with Cheese	McDonald’s	1,140 mg	520	30 g
Original Fatburger	Fatburger	1,190 mg	590	33 g
Whataburger	Whataburger	1,220 mg	590	29 g
Whopper with Cheese	Burger King	1,240 mg	740	35 g
Charburger	The Habit Burger Grill	1,300 mg	480	21 g
Bacon Cheeseburger	Five Guys	1,310 mg	920	52 g
Sonic Cheeseburger	Sonic Drive-In	1,350 mg	680	33 g

The surprise in this table: the Big Mac (1,050 mg) is not the McDonald’s trap — the Quarter Pounder with Cheese (1,140 mg) beats it, and the Double Quarter Pounder hits 1,360 mg. And note the Whopper with Cheese at 1,240 mg — same sandwich as the 980 mg Whopper, plus one slice of cheese. Which brings us to the math that matters most.

The cheese tax: 180–410 mg per slice

Same chain, same burger, one slice of American:

• Burger King: Hamburger 380 mg → Cheeseburger 560 mg (+180 mg)
• McDonald’s: Hamburger 510 mg → Cheeseburger 720 mg (+210 mg)
• Wendy’s: Jr. Hamburger 490 mg → Jr. Cheeseburger 680 mg (+190 mg)
• Five Guys: Little Hamburger 430 mg → Little Cheeseburger 690 mg (+260 mg)
• Culver’s: ButterBurger Single 480 mg → ButterBurger Cheese Single 700 mg (+220 mg)
• In-N-Out: Hamburger 670 mg → Cheeseburger 1,080 mg (+410 mg — the cheeseburger also assumes the spread)

Processed cheese is salt delivery shaped like a dairy product. If you take one rule from this page: order the hamburger, not the cheeseburger, and you bank ~200 mg before any other decision.

Bacon costs about the same. McDonald’s McDouble (920 mg) becomes the Bacon McDouble (1,130 mg); Five Guys’ Little Hamburger (430 mg) becomes the Little Bacon Burger (650 mg). Cheese and bacon together are why “deluxe” versions of anything reliably clear 1,300 mg.

The no-salt-on-the-patty ask

Several chains will grill your patty without the added salt if you ask — and since the patty is cooked to order anyway, it costs them nothing. Our estimates of what that saves, based on removing the added grill salt (method on our methodology page):

Burger	Listed sodium	No-salt patty (est.)
Burger King Hamburger	380 mg	~280 mg
In-N-Out Protein Style Hamburger	390 mg	~310 mg
Five Guys Little Hamburger	430 mg	~350 mg
Wendy’s Jr. Hamburger	490 mg	~390 mg
McDonald’s Hamburger	510 mg	~410 mg

These are estimates, not published figures — the chains don’t list no-salt builds, so treat them as direction, not gospel. What they show is the shape of the opportunity: the grill seasoning alone is roughly 100 mg per patty at most chains.

Why burgers stack sodium so fast

Four layers, each salty on its own:

1. The patty seasoning. Grill salt and seasoning blends are worked into or onto the beef — 100+ mg before toppings exist. This is the layer the no-salt ask removes.
2. The cheese. One processed slice: 180–260 mg at nearly every chain.
3. The bun. Enriched white buns run 200–400 mg on their own — the one layer you can’t customize away, short of a lettuce wrap. That’s why In-N-Out’s Protein Style (390 mg) and Fatburger’s no-bun build (890 mg for a full Fatburger) drop so far below their bunned versions.
4. The sauce and pickles. Ketchup-mustard is cheap; mayo-based “secret” sauces and pickle stacks are not. In-N-Out shows it cleanly: hamburger with spread is 670 mg, with mustard-ketchup instead it’s 610 mg, and the same swap on the cheeseburger saves 60 mg more.

Ordering rules

1. Hamburger over cheeseburger, always. It’s the single biggest lever — ~200 mg at the same chain, same sandwich otherwise.
2. Under 700 mg is a realistic ceiling for a burger. BK’s Hamburger (380 mg), a Five Guys Little Hamburger (430 mg), or a Culver’s Single (480 mg) fits a 1,500–2,300 mg day with room for a side.
3. Junior sizes are a feature, not a compromise. Wendy’s Jr. (490 mg) and Sonic’s Jr. (590 mg) are real burgers at half the signature-burger sodium.
4. Lettuce wrap = minus the bun’s 200–400 mg. In-N-Out Protein Style and Fatburger no-bun prove it in the official numbers.
5. “Double,” “deluxe,” and “bacon” are all sodium multipliers. Each one adds 200+ mg. Stack two and you’re past 1,300 mg before fries.
6. Skip the combo. These numbers are the burger alone — see our guide to ordering a full meal under 800 mg.

Traps to skip

• Anything triple. Whataburger’s Triple Meat (1,720 mg), Sonic’s SuperSonic Double Cheeseburger (1,750 mg), Fatburger’s Triple King (2,179 mg). One sandwich, a full day’s sodium.
• Five Guys Bacon Cheeseburger — 1,310 mg. The 52 g of protein is real, but so is the sodium. The Little Hamburger (430 mg) gets you the same beef, sane numbers.
• The Habit Charburger with Cheese — 1,620 mg. Higher than a Big Mac, wearing a “fresh, never frozen” halo.
• Whataburger Patty Melt — 1,760 mg. The Texas toast and creamy pepper sauce make it the worst single patty-melt we track.
• Assuming chicken is the safer swap — it’s usually not. The average crispy chicken sandwich beats the average signature burger for sodium; see the chicken sandwich ranking.

FAQ

What is the lowest-sodium fast food burger? The Burger King Hamburger at 380 mg among full-size burgers, followed by In-N-Out’s Protein Style Hamburger at 390 mg (lettuce-wrapped) and Five Guys’ Little Hamburger at 430 mg. White Castle’s Original Slider is lower at 230 mg, but it’s slider-sized — four of them are 920 mg.

How much sodium is in a typical fast food burger? Plain hamburgers run 380–700 mg at major chains. Signature burgers — Big Mac, Whopper, Quarter Pounder — run 980–1,360 mg. Doubles, triples, and bacon-cheese builds range from 1,300 mg to over 2,100 mg, which is most of a full day’s 2,300 mg limit in one sandwich.

Is a cheeseburger much worse than a hamburger for sodium? Yes — one slice of processed cheese adds 180–410 mg depending on the chain. McDonald’s goes from 510 mg (hamburger) to 720 mg (cheeseburger); In-N-Out from 670 mg to 1,080 mg. Skipping cheese is the single easiest sodium cut in fast food.

Can I ask for a burger with no salt? At many chains, yes — patties are cooked to order, so “no salt on the patty” is a normal request. Chains don’t publish no-salt nutrition, but our estimates put the savings around 100 mg per patty. It won’t touch the sodium in the bun, cheese, or sauce.

Which fast food burger has the most protein for the least sodium? Five Guys’ Hamburger: 39 g of protein for 480 mg, because the patties are unseasoned. Five Guys’ Little Hamburger (23 g, 430 mg) and Culver’s ButterBurger Single (20 g, 480 mg) are the next-best ratios.

Keep reading

• Lowest Sodium Chicken Sandwiches at Every Major Chain, Ranked
• What Fast Food Is Low in Sodium? 15 Picks Under 700 mg
• Lowest Sodium Fast Food: How to Order Under 800 mg
• How Much Sodium Per Day? 1,500 vs 2,300 mg Explained
• Find low-sodium fast food near you
• All 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 — see our methodology for how we verify numbers. No-salt-on-patty figures are estimates derived from that data, marked as such. Menus and recipes change — the chain’s own calculator for your location is the final word.

Last editorial pass: 2026-08-18.