Web Analytics
RestaurantsDietsGuidesAllergensBest OfCompare
Nom Diet Guide · Updated June 2026

Keto & Low-Carb Fast Food Guide

Stay in ketosis on the go with options under 20g net carbs at every major chain.

394
Qualifying Items
27
Restaurants
A
Best Grade
Browse Keto & Low-Carb Options Compare Foods

Top Keto & Low-Carb Picks

Hot Tea (Medium)
A
1
Hot Tea (Medium) · McDonald's
Cal
10
Prot
2g
Sod
5
Sug
0g
Dasani Water
A
2
Dasani Water · McDonald's
Cal
0
Prot
0g
Sod
0
Sug
0g
Dasani Bottled Water
A
3
Dasani Bottled Water · Jack in the Box
Cal
0
Prot
0g
Sod
0
Sug
0g

Why Keto & Low-Carb Matters

The ketogenic diet restricts carbohydrate intake to typically 20-50g per day, forcing your body to burn fat for fuel instead of glucose. This metabolic state — called ketosis — has been shown to support weight loss, improve mental clarity, and stabilize energy levels throughout the day.

Eating keto at fast food restaurants might seem impossible given that buns, fries, and sugary sauces are everywhere. But most chains actually have surprisingly good low-carb options if you know what to order. Bunless burgers, grilled chicken, salads with full-fat dressing, and protein bowls can all keep you well under 20g carbs per meal.

The key is knowing which menu items to target and which hidden carb traps to avoid. Sauces, breading, and even some salad toppings can add 10-20g of unexpected carbs. This guide gives you a reliable roadmap for staying keto at any fast food chain.

Research & Evidence

Ketogenic diets lead to 2-3x more weight loss than low-fat diets in the first 6 months.
New England Journal of Medicine, 2003
Carb restriction to under 50g/day can improve triglyceride levels and increase HDL cholesterol.
Annals of Internal Medicine, 2014
Ketosis reduces appetite hormones (ghrelin), naturally decreasing calorie intake.
European Journal of Clinical Nutrition, 2013
Low-carb diets are particularly effective for reducing visceral (belly) fat.
Diabetes Care, 2014

Benefits & Considerations

Benefits

  • Accelerated fat loss through ketosis
  • Reduced appetite and fewer cravings
  • Stabilized blood sugar and insulin levels
  • Improved mental clarity and sustained energy
  • May improve cholesterol markers (increased HDL, lower triglycerides)

Things to Watch

  • "Keto flu" symptoms during the first 1-2 weeks of adaptation
  • Difficult to sustain long-term for some people
  • May lead to nutrient deficiencies without careful planning
  • Very high-fat fast food options can be high in sodium and saturated fat

Ordering Tips

1
Order any burger "protein style" or "lettuce wrapped" to skip the bun (saves 25-40g carbs)
2
Ask for no ketchup, BBQ sauce, or honey mustard — these add 5-15g sugar per serving
3
Choose full-fat ranch, Caesar, or blue cheese dressings (1-2g carbs vs 10g+ in "light" dressings)
4
At Mexican chains, get a bowl without rice or beans and load up on protein, cheese, sour cream, and guacamole
5
Avoid breaded chicken — even small pieces of breading can add 10-15g carbs
6
Breakfast is easy keto: eggs, bacon, sausage, and cheese (skip the toast and hash browns)
Ready to order? Find keto & low-carb options near you.
Browse Keto & Low-Carb Options

Top Chains for Keto & Low-Carb

1
KFC
89 qualifying items
2
Jersey Mike's Subs
30 qualifying items
3
McDonald's
27 qualifying items
4
Subway
22 qualifying items
5
Wingstop
19 qualifying items

Key Takeaways

  • Bunless burgers are the easiest keto option — removing the bun saves 25-40g carbs instantly.
  • Hidden carbs in sauces (ketchup 4g, BBQ 6-9g, teriyaki 10-15g per serving) are the biggest keto trap.
  • Stick to mustard, mayo, ranch, or hot sauce — all under 2g carbs per serving.
  • Chipotle bowls without rice or beans deliver high fat and protein with under 10g net carbs.
  • Breakfast is the easiest keto meal: eggs, bacon, sausage, and cheese are all under 2g carbs.

Top 15 Keto & Low-Carb Items Across All Chains

# Item Restaurant Calories Protein Carbs Sodium Grade
1 Hot Tea (Medium) McDonald's 10 2g 0g 5mg A
2 Dasani Water McDonald's 0 0g 0g 0mg A
3 Dasani Bottled Water Jack in the Box 0 0g 0g 0mg A
4 Bottled Water Jersey Mike's Subs 0 0g 0g 0mg A
5 Classic Wings - Plain (6 pc) Wingstop 540 60g 0g 180mg A
6 Classic Wings - Louisiana Rub (6 pc) Wingstop 660 60g 0g 840mg B
7 Classic Wings - Mild (6 pc) Wingstop 720 60g 0g 960mg B
8 Kentucky Grilled Chicken Drumstick KFC 80 11g 0g 220mg B
9 Kentucky Grilled Chicken Breast KFC 210 38g 0g 710mg B
10 Kentucky Grilled Chicken Whole Wing KFC 70 9g 0g 180mg B
11 Americano (Medium) McDonald's 0 0g 0g 0mg B
12 Diet Coke (Medium) McDonald's 0 0g 0g 70mg B
13 Iced Tea (Medium) McDonald's 0 1g 0g 15mg B
14 Medium Unsweetened Iced Tea Chick-fil-A 0 0g 0g 10mg B
15 Medium Coffee Chick-fil-A 0 0g 0g 15mg B

Keto & Low-Carb Guides by Restaurant

Detailed keto & low-carb guides for each chain with full menus and nutrition data:

Taco BellTaco Bell McDonald'sMcDonald's ChipotleChipotle Chick-fil-AChick-fil-A Wendy'sWendy's Burger KingBurger King Panda ExpressPanda Express The Habit Burger GrillThe Habit Burger Grill Panera BreadPanera Bread Jack in the BoxJack in the Box SubwaySubway IHOPIHOP Del TacoDel Taco PopeyesPopeyes Carl's Jr.Carl's Jr. SweetgreenSweetgreen Shake ShackShake Shack In-N-Out BurgerIn-N-Out Burger Jersey Mike's SubsJersey Mike's Subs Jimmy John'sJimmy John's Five GuysFive Guys Raising Cane'sRaising Cane's WingstopWingstop Culver'sCulver's WhataburgerWhataburger El Pollo LocoEl Pollo Loco Dairy QueenDairy Queen Sonic Drive-InSonic Drive-In KFCKFC

Explore Other Diets

High Protein

Build muscle and stay full with 20g+ protein picks across every major chain.

Low Calorie

Eat light without sacrificing satisfaction — all under 500 calories.

Low Sodium

Heart-healthy eating made easy — options with 800mg sodium or less.

Weight Loss & GLP-1 Friendly

High protein, low calorie, low sugar picks perfect for weight management and GLP...

Diabetic Friendly

Low sugar, fiber-rich options to help manage blood sugar while eating out.

Low Sugar

Cut the sugar without cutting the flavor — options with 15g sugar or less.

Vegetarian

Meat-free options that don't compromise on taste or nutrition.

Vegan

100% plant-based options across every major chain — no animal products.

Frequently Asked Questions

How many carbs can I eat and stay in ketosis?
Most people maintain ketosis at 20-50g of net carbs (total carbs minus fiber) per day. Beginners should start at 20g to ensure they enter ketosis quickly.
Are bunless burgers really keto-friendly?
Yes. A typical bunless burger with cheese and veggies has 2-5g net carbs. The bun alone adds 25-40g carbs, so removing it makes most burgers perfectly keto.
What about hidden carbs in sauces?
Ketchup has about 4g sugar per tablespoon, BBQ sauce has 6-9g, and sweet sauces like teriyaki can have 10-15g. Stick to mustard, mayo, ranch, or hot sauce.
Can I eat fast food every day on keto?
While not ideal for overall nutrition, you can maintain ketosis eating fast food daily if you choose wisely. Focus on protein and fat, avoid all breading and sugary sauces, and supplement with vegetables at other meals.

Find the healthiest option, anywhere

Nom grades every fast food menu item A–F by the Nom Score, so you can order the best option at any restaurant.

Free to use 1,600+ items graded No signup needed
Find healthy options Compare restaurants