Keto Restaurant Guide
Keto at Five Guys
Five Guys is one of the easiest burger chains to plan on keto because its nutrition guide breaks every order into parts. The hamburger patty, bacon, and mayonnaise are all 0g carbs. A slice of cheese is about 1g. The carbs sit in the 35g hamburger bun, the fries, the shakes, and a few sweet sauces.
Ask for your burger in a bowl (no bun) and build it from the toppings list. Lettuce, pickles, grilled mushrooms, mustard, and mayo barely move the count. Ketchup, BBQ sauce, and relish are the toppings that add sugar, so pick mustard and mayo instead. The in-store peanuts are a fair keto snack at about 2g net carbs an ounce.
By MeKeto Editorial · Last updated October 2026
Our go-to keto order
Bacon cheeseburger in a bowl, two patties, with lettuce, pickles, grilled mushrooms, mustard, and mayo
4g net carbs
4g carbs, 0g fiber
No bun. Sum of the published components: 2 hamburger patties (0g), 2 cheese slices (1g each), bacon, 2 pieces (0g), lettuce (1g), pickles (0g), grilled mushrooms (1g), mustard (0g), and mayonnaise (0g). Lettuce fiber is listed as under 1g and is counted as 0.
Best keto options
1g carbs, 0g fiber
Sum of 2 hamburger patties (0g), lettuce (1g), pickles (0g), and mustard (0g). Lettuce fiber is under 1g, counted as 0.
4g carbs, 0g fiber
Sum of 1 hamburger patty (0g), 1 cheese slice (1g), lettuce (1g), and tomatoes (2g). Fiber for lettuce and tomato is under 1g, counted as 0.
1g carbs, 0g fiber
The hot dog itself is listed at 1g carbs. The hot dog bun is 33g, so ask for it in a bowl.
0g carbs, 0g fiber
Listed at 0g carbs. Add it to any bowl for fat and flavor.
1g carbs, 0g fiber
One of the lowest-carb toppings at 1g. Green peppers are also 1g.
0g carbs, 0g fiber
Listed at 0g carbs and about 100 calories of fat. A better sauce choice than ketchup or BBQ.
5g carbs, 3g fiber
The in-store bulk peanuts are 5g carbs and 3g fiber per ounce. Easy to overeat, so portion them.
| Item | Carbs | Fiber | Net | Why / how |
|---|---|---|---|---|
| Two patties in a bowl with lettuce, pickles, and mustard | 1g | 0g | 1g | Sum of 2 hamburger patties (0g), lettuce (1g), pickles (0g), and mustard (0g). Lettuce fiber is under 1g, counted as 0. |
| Little cheeseburger in a bowl with lettuce and tomato | 4g | 0g | 4g | Sum of 1 hamburger patty (0g), 1 cheese slice (1g), lettuce (1g), and tomatoes (2g). Fiber for lettuce and tomato is under 1g, counted as 0. |
| Hot dog, no bun | 1g | 0g | 1g | The hot dog itself is listed at 1g carbs. The hot dog bun is 33g, so ask for it in a bowl. |
| Bacon (2 pieces) | 0g | 0g | 0g | Listed at 0g carbs. Add it to any bowl for fat and flavor. |
| Grilled mushrooms | 1g | 0g | 1g | One of the lowest-carb toppings at 1g. Green peppers are also 1g. |
| Mayonnaise | 0g | 0g | 0g | Listed at 0g carbs and about 100 calories of fat. A better sauce choice than ketchup or BBQ. |
| Bulk peanuts (1 oz) | 5g | 3g | 2g | The in-store bulk peanuts are 5g carbs and 3g fiber per ounce. Easy to overeat, so portion them. |
Order with care
35g carbs, 1g fiber
The bun alone is 34g net carbs. Order every burger in a bowl.
72g carbs, 8g fiber
Even the little size is 64g net carbs, and a regular order is 116g. Skip the fries entirely.
65g carbs, 0g fiber
The base alone is 65g of carbs before any mix-ins. There is no keto version.
15g carbs, 0g fiber
Listed at 15g carbs per serving, mostly sugar. Fiber is listed as under 1g and counted as 0. Use mustard or mayo.
5g carbs, 0g fiber
Small but sweet, at 5g carbs per serving. Relish is similar at 4g.
| Item | Carbs | Fiber | Net | What to do |
|---|---|---|---|---|
| Hamburger bun | 35g | 1g | 34g | The bun alone is 34g net carbs. Order every burger in a bowl. |
| Little Five Guys Style fries | 72g | 8g | 64g | Even the little size is 64g net carbs, and a regular order is 116g. Skip the fries entirely. |
| Vanilla shake base | 65g | 0g | 65g | The base alone is 65g of carbs before any mix-ins. There is no keto version. |
| BBQ sauce | 15g | 0g | 15g | Listed at 15g carbs per serving, mostly sugar. Fiber is listed as under 1g and counted as 0. Use mustard or mayo. |
| Ketchup | 5g | 0g | 5g | Small but sweet, at 5g carbs per serving. Relish is similar at 4g. |
How to order keto at Five Guys
- Say "in a bowl" or "no bun" for any burger, cheeseburger, or hot dog.
- Build it with lettuce, pickles, grilled mushrooms, green peppers, mustard, and mayo. All are 1g carbs or less.
- Add bacon and cheese for fat. Bacon is 0g and a cheese slice is about 1g.
- Skip ketchup, BBQ sauce, relish, and A.1. sauce, which carry the sugar.
- Pass on the fries in every size. Even the little order is 64g net carbs.
Net carbs are total carbohydrate minus dietary fiber, rounded to the nearest gram, from Five Guys's published nutrition information (checked October 2026). For a modified order, such as no bun, we subtract the published values of the part you leave off. Menus and recipes vary by location and change over time, so check current nutrition with Five Guys before you order, especially for sauces, dressings, and seasonal items.
Frequently asked questions
Yes. Order any burger in a bowl, without the 35g bun, and choose low-carb toppings like lettuce, pickles, mushrooms, mustard, and mayo. A two-patty bacon cheeseburger built that way is about 4g net carbs from the published components.
Five Guys will serve any burger or hot dog in a bowl instead of a bun. Because its nutrition guide lists the bun separately (35g carbs, 1g fiber), you can see exactly what you save.
The hamburger patty and bacon are both listed at 0g carbs, and mayo and mustard are 0g too. Two patties in a bowl with lettuce, pickles, and mustard add up to about 1g net carbs.
The hamburger bun is 35g carbs with 1g fiber, the hot dog bun is 33g, and the mini bun is 20g. Dropping the bun is the single biggest carb cut you can make.
No. A little order of Five Guys Style fries is 72g carbs with 8g fiber, and a regular order is 131g carbs. There is no low-carb way to order them.
In moderation. One ounce of the bulk peanuts is 5g carbs and 3g fiber, about 2g net. The catch is portion size, since it is easy to eat several ounces while waiting.
Sources
- Five Guys Nutrition and Allergen Information, accessed October 2026.
- Five Guys US Nutrition and Allergen Guide, September 2026 (PDF), accessed October 2026.