If you’re trying to stay sugar-free or keto and find yourself at Five Guys, you’re in luck—this is one of the easiest fast food chains to navigate on a low-carb diet.
With fresh, made-to-order burgers and a long list of toppings you can pile on, Five Guys is actually a keto-friendly gem—as long as you know what to avoid.

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What’s Sugar Free and Keto Friendly at Five Guys?
Let’s break down what’s sugar-free and keto-friendly at Five Guys!
🍔 Burgers (Skip the Bun)
At Five Guys, you can order any burger “in a bowl” or wrapped in lettuce. This makes building your low-carb meal super simple.
✅ Choose from:
- Hamburger
- Cheeseburger
- Bacon Burger
- Bacon Cheeseburger
- Little Hamburger / Little Cheeseburger (smaller patty)
- All Beef Hot Dog (no bun)
Pro Tip: Their bacon is cooked fresh in-house—no added sugar in most locations, but always double-check if you’re ultra strict.
🧀 Toppings (Keto-Friendly)
Here’s what you can load up your burger bowl with that’s sugar-free and low carb:
- Lettuce
- Tomato
- Pickles
- Grilled Onions
- Grilled Mushrooms
- Jalapeño Peppers
- Green Peppers
- Raw Onions
- Mustard
- Mayonnaise
- Hot Sauce
- A-1 Sauce (adds a few carbs—use sparingly if needed)
🚫 Avoid: Ketchup, BBQ Sauce, Relish — all contain added sugars
🥤 Drinks
Stick with the usual low-carb drinks:
- Water
- Diet Coke
- Coke Zero
- Unsweet Tea (if available)
- Black Coffee (if available)
🍟 Sides? Sorry, Not This Time
As tempting as those hand-cut fries are, they’re a no-go for keto or sugar-free diets. No onion rings, milkshakes, or Cajun fries either.
✅ Five Guys Keto Summary
Here’s your quick cheat sheet:
- ✔️ Any burger or hot dog – no bun
- ✔️ Add all the low-carb toppings you want
- ✔️ Lettuce wrap or bowl-style only
- ✔️ Stick to mustard, mayo, or hot sauce
- ❌ Avoid fries, buns, shakes, and sugary sauces
📌 Final Thoughts
Five Guys might not look keto-friendly at first glance, but it’s actually one of the most customizable fast food stops around. With fresh ingredients, generous servings, and the ability to go full lettuce-wrap or bowl mode, it’s a go-to for low-carb eaters on the go.
Want more keto-friendly restaurant guides? Check out our full Sugar-Free & Keto Guide to Eating Out <–
