How to order low-sodium food at fast food restaurants

By Shiundu Valerie, RDN / Updated October 12, 2026

Health Impact|Hidden Sodium|3 Steps to Order|Grab-and-Go Choices

Dietitian’s Bottom Line

Over 75% of dietary sodium comes from processed and restaurant food, not the salt shaker. Because fast food is assembled rather than cooked from scratch, reducing salt depends on subtraction:

The 5/20 Rule: Look for items with ≤ 5% Daily Value (%DV) for sodium; avoid anything ≥20% DV.
Strip Hidden Sodium: Skip processed cheese, pickles, olives, and heavy sauces to eliminate up to 800 mg of sodium per order.
Smart Ordering: Ask for grilled proteins unseasoned, order dressings on the side (use the fork-dip method), and swap fries for fruit or plain side salads.

To order low-sodium fast food during travel, focus on selecting basic, unseasoned proteins—such as grilled chicken or roasted meats—and requesting all sauces, dressings, and salt-heavy toppings on the side. This simple strategy allows you to regain control over the “hidden” sodium that accounts for 70–75% of the average intake, most of which is added during industrial processing rather than from the salt shaker on your table.

The Health Impact of a Single High-Sodium Meal

Sodium draws water into the bloodstream, increasing fluid volume and arterial pressure. The cardiovascular response to dietary sodium is faster than most people expect.

Research in over 73% of participants showed that a low-sodium diet produced a significant blood pressure reduction within one week. Mean systolic reduction was approximately 8 mmHg — comparable to the effect of some antihypertensive medications.

Diet and prescription medications work independently. A high-sodium meal can still cause acute blood pressure spikes even if you take daily blood pressure medication.

Learn more: How long does it take for a low-sodium diet to lower blood pressure?

Common Sources of Hidden Sodium in Restaurant Food

According to the FDA, over three-quarters of dietary sodium comes from processed and restaurant food — not from cooking at home or using a salt shaker. Sodium is used industrially as a preservative, leavening agent, and flavour enhancer.

The CDC identifies the following as the primary contributors at travel food stops:

Item	Sodium Source
Deli meat sandwiches	Cured meats brined with sodium; bread contributes additional load
Pizza	Processed crust, salted cheese, and canned sauce compound sodium across three components
Burritos and tacos	Seasoned meat, tortilla, cheese, and sauces each add significant sodium
Burgers	Pre-seasoned patties and buns; sauces and pickles multiply the total
Pastries and white rolls	Highly processed grain products; sodium load underestimated due to frequency of consumption

Label reading shortcut: use the 5/20 rule on the Nutrition Facts panel. Sodium %DV of 5% or less = low-sodium. 20% or more = high. On ingredient lists, sodium also appears as monosodium glutamate (MSG) and sodium bicarbonate.

What do I actually order?

This is the part you can use today, at literally any drive-through. Three moves, in order.

Move 1: Scan before you commit

Most major chains post nutrition info on an app, website, or QR code at the register — check it from the passenger seat before you’re at the counter.

Look for the % Daily Value (%DV) for sodium:

5% DV or less: Low sodium option
20% DV or more: High sodium option

Example: A standard breaded fried chicken sandwich often contains 1,200–1,500 mg of sodium, whereas an unseasoned grilled chicken sandwich typically runs 400–600 mg.

Move 2: Strip the extras

Once you’ve picked a base item, strip what doesn’t need to be there:

Skip sauces and condiments (ketchup, mayo, ranch) — save 100-300mg
Skip the “salty trio”: processed cheese, pickles, olives — save 150-500mg
Ask for the protein unseasoned — many chains apply a standard salt rub before grilling, even on the “healthy” options

You can say this at any counter: “Could I get the grilled chicken with no added seasoning salt, no cheese, and no pickles?”

Move 3: Substitute the defaults

Swap fries for apple slices or a side salad (skip croutons and deli-meat add-ons — same hidden-sodium problem)
Swap soda for water or unsweetened iced tea (you’ll actually be thirstier after a salty meal, so don’t make it worse with sugar)
Ask for sauce on the side, then dip your fork instead of pouring — you get the flavor with a fraction of the sodium
Ask for a lemon wedge or vinegar packet to brighten flavor instead of reaching for more salt

How do I ask for changes without being ‘that’ customer?

Fast food is assembled, not cooked from scratch. That means the sodium reduction strategy is subtraction — removing the high-sodium components rather than requesting a different preparation.

Order plain: request burgers and sandwiches without pickles, cheese, and condiments — these are the highest-sodium add-ons, not the protein itself
Sauce on the side: never allow dressing or sauce to be applied. Use the fork-dip method: dip the fork into the sauce, then spear the food. Full flavour per bite, significantly less sodium overall
Ask about preparation: grilled chicken and baked potatoes are sometimes salt-rubbed or rolled in salt before cooking. Ask for yours unseasoned
Skip the high-sodium extras: olives, croutons, bacon bits, and pickles have disproportionate sodium loads for their serving size
Bring a no-salt spice blend: a portable salt-free seasoning (e.g. herb-and-citrus blend) adds flavour to plain grilled protein without any sodium contribution

Grab-and-Go Choices at Kiosks and Service Stations

When you’re traveling and fast-food chains aren’t an option, service stations offer quick low-sodium alternatives:

Raw or Unsalted Nuts: High in healthy fats and protein without added sodium.
Hard-Boiled Eggs: Check labels to ensure they aren’t stored in brine.
Fresh Fruit: Bananas, apples, and oranges are naturally sodium-free and rich in potassium.
Unsalted Seeds & Trail Mixes: Look for raw pumpkin or sunflower seeds without added salt.

The Bottom Line

Navigating fast food on a low-sodium diet isn’t about perfection; it’s about making deliberate, high-impact subtractions. By remembering Scan, Strip, and Substitute, you can easily reduce a fast-food meal’s sodium content by 50% or more.

Keep our free Low Sodium Fast Food Swap Reference saved on your phone for quick reference on road trips or busy weeknights.

References

Gupta DK, Lewis CE, Varady KA, Su YR, Madhur MS, Lackland DT, Reis JP, Wang TJ, Lloyd-Jones DM, Allen NB. Effect of Dietary Sodium on Blood Pressure: A Crossover Trial. JAMA. 2023 Dec 19;330(23):2258-2266. doi: 10.1001/jama.2023.23651. PMID: 37950918; PMCID: PMC10640704.
https://www.fda.gov/food/nutrition-education-resources-materials/sodium-your-diet

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Updated 12 October 2026 Editorial standards

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