Fast food: order the protein, leave the meal deal at the counter.
You're at the counter, you're hungry, and the combo is shouting at you. Fine. Here's how to walk out with the least damage, and how to make "sometimes" actually mean sometimes.
The short version
- Best
- Grilled chicken or fish, a kebab plate with salad, sliced fish soup, a single plain burger.
- OK
- A döner in bread with extra salad, chicken rice with less rice, one burger in its bun.
- Never
- Fries, soft drinks, milkshakes, anything deep-fried, the upsize, sauce refills.
- When
- Once a week at most, inside your eating window, as a meal. Not as a 1 am bonus meal.
- Our take
- Order the main thing. Leave the fries and the drink at the counter.
The one rule: the meal, not the meal deal
A burger is a bun with some protein in it. The damage mostly comes with what the till adds: fries, a soft drink, a dessert "for just 1 euro more". So the rule is simple: order the main item alone, with water.
The drink alone settles it. The WHO wants free sugars under 10% of your daily energy, ideally under 5%, which is about 25 g or six teaspoons. A single can of sugary soda can hold up to 40 g.1 One drink, and the day's sugar budget is gone before you've unwrapped anything.
What fast food does to your body
Weight and blood sugar
The CARDIA study followed 3,031 young American adults for 15 years. People who ate fast food more than twice a week, at the start and the end, gained an extra 4.5 kg compared with people who went less than once a week, and their insulin resistance (the early step towards type 2 diabetes) rose twice as much.2 It's observational, so fast food isn't the only difference between those groups. But the direction is hard to ignore.
You eat more than you think
In a tightly controlled trial, 20 adults lived in a US research clinic and ate as much as they liked from either ultra-processed or unprocessed meals for two weeks each. On the ultra-processed food they ate about 500 kcal a day more and gained around 0.9 kg in two weeks.3 Small study, strict setup, clear result. And we're bad at guessing: in a study of more than 3,000 fast-food customers, adults underestimated their meal by about 175 kcal on average, and the bigger the meal, the bigger the miss.4 Diners at a chain with a "fresh, healthy" image guessed lower than at a classic burger chain. Marketing works.
Salt
The WHO says adults should eat less than 5 g of salt a day. The world average is about 11 g, and much of it comes from processed food and sauces.5 In Singapore, average sodium intake reached 3,620 mg a day in 2022, roughly 9 g of salt, and nine in ten residents were above the limit. The main sources were salt and sauces added in cooking, and meals eaten out.6 More on that in our low sodium guide.
The fryer
A review of 17 studies found that people who ate the most fried food had about 28% more heart attacks, strokes and other major heart events than those who ate the least.7 These are observational studies with big differences between them, so read it as a warning, not a verdict. Fries carry a second problem: acrylamide, which forms when starchy food is fried or baked hot. The EU's food safety authority (EFSA) names fried potato products as a main source and says acrylamide potentially increases cancer risk.8
The sausage
The WHO's cancer agency classifies processed meat as a known cause of bowel cancer. Every 50 g eaten daily raises the risk by about 18%.9 The Würstelstand is a once-in-a-while stop, not a lunch plan.
What actually helps: protein
Protein keeps you full. A big review in the American Journal of Clinical Nutrition found that meals with at least about 25–30 g of protein improved appetite control and weight management.10 That's why protein goes first in every order below, and why it's the bit you never skip. Our high-protein guide has the details.
Order by order
| Where | What to order | Verdict |
|---|---|---|
| Burger chain | Grilled chicken burger or wrap, side salad, water | Best |
| Burger chain | Single plain burger, no extra cheese or bacon, water | OK |
| Burger chain | Double or triple burger, fries, soft drink, dessert | Never |
| Kebab shop | Kebab plate or Dürüm with lots of salad, sauce on the side | Best |
| Kebab shop | Döner in bread, extra salad, one sauce | OK |
| Kebab shop | Döner box with fries, or kebab pizza | Never |
| Würstelstand | One sausage, no bread, mustard and a gherkin, water | Least bad |
| Würstelstand | Käsekrainer, Leberkässemmel, Currywurst with fries | Never |
| Hawker centre | Sliced fish soup, yong tau foo in soup (no fried items) | Best |
| Hawker centre | Chicken rice with less rice, economic rice with one meat and two vegetables, less gravy | OK |
| Hawker centre | Char kway teow, nasi lemak with fried chicken, murtabak | Never |
| Fried chicken chain | Grilled pieces if they have them, a salad, water | OK |
| Anywhere | Fries, onion rings, nuggets, milkshakes, soft drinks, the upsize | Never |
The four-week step-down
If fast food is a twice-a-week thing right now, don't fight it all at once. Drop one piece a week:
- Week 1: lose the drink. Same order, but water or sparkling water. Not diet cola: sweeteners are on our never list, because they keep the sweet habit alive.
- Week 2: lose the fries. Side salad or nothing. The burger tastes the same without them, promise.
- Week 3: lose the extras. Single instead of double, one sauce, no refills, no dessert.
- Week 4: lose a visit. From twice a week to once. That one visit becomes your Rebel Day meal, not a Tuesday habit.
How often is "sometimes"? Once a week, at most. CARDIA's trouble zone was more than twice a week, and our plan has one Rebel Day for a reason.
"The salad is always the healthy pick." Crispy chicken, croutons, bacon bits and a creamy dressing make a salad that can rival the burger. Pick grilled, ask for the dressing on the side, and use half of it.
"Diet cola cancels out the fries." Nothing cancels the fries. And diet drinks aren't our swap: sweeteners stay on the never list. Water is free, and it's the only drink on the menu with nothing to hide.
"A wrap is lighter than a burger." A wrap is a bun rolled flat. Crispy chicken plus sauce is crispy chicken plus sauce, whatever it's wrapped in. Look at what's inside, not at the shape.
Eat, forget
Eat
- Grilled chicken, grilled fish, kebab meat on a plate
- A single burger, eaten slowly
- Side salad, extra lettuce, tomato, onion, cucumber
- Soups: sliced fish soup, yong tau foo in soup
- Steamed chicken, with less rice
- Mustard, chilli, lemon, one sauce portion
- Water, sparkling water, unsweetened tea
Forget it
- Fries, wedges, hash browns, onion rings
- Nuggets, popcorn chicken, anything battered
- Soft drinks, milkshakes, sweetened iced tea, bubble tea
- "Diet" and "zero" drinks
- Upsizing, double and triple patties, cheese sauce
- Sauce refills and dip pots
- Sausages, Leberkäse, bacon add-ons
- Desserts, sundaes, pies
Eat it where you live
Singapore and Southeast Asia
- Sliced fish soup or yong tau foo in soup: pick tofu, vegetables and fish balls, not the fried items
- Chicken rice: steamed chicken, less rice, go easy on the dark sauce
- Economic rice: one meat, two vegetables, and say "less gravy". Sauce is where the salt sits
- Kopi-o kosong or teh-o kosong instead of the sweet versions
- Skip char kway teow, nasi lemak with fried chicken, murtabak and the fried snacks
Austria, Germany, Switzerland
- Kebab: the plate or a Dürüm, heavy on salad, sauce on the side
- Würstelstand: one sausage, no Semmel, mustard and a Pfefferoni or gherkin. There's no green option here, only a least-bad one
- Burger chains: same rules everywhere, protein plus salad, water
- Skip the Käsekrainer, the Leberkässemmel, Currywurst with Pommes, and the Bratwurst at 2 am
About that 2 am kebab: it's usually alcohol ordering, not you. Our alcohol guide explains why everything you eat while drinking gets stored instead of burned, and why the kitchen should be closed by then anyway.
Can't give up the fries?
- Small, never large. Never "make it a large for 50 cents"
- Share one portion between two people
- Eat the protein first, the fries last. You'll eat fewer
- No extra salt, one ketchup portion
- Swap for a side salad every second time
Still a no: soft drinks, milkshakes, upsizing, and fast food more than once a week.
Allergies and intolerances
In the EU, restaurants and takeaways must be able to tell you which of the 14 mandatory allergens are in unpackaged food.11 Ask. Shared fryers and grills mean cross-contact is common.
| Item | Allergens to watch | Swap |
|---|---|---|
| Burger bun, kebab bread, wrap | Gluten (wheat), sesame, often milk and egg | Plate or lettuce wrap |
| Mayonnaise, burger sauces | Egg, mustard | Lemon, chilli, salsa |
| Cheese, yoghurt and garlic sauce | Milk | Chilli sauce, plain salad |
| Sausages, Leberkäse | Often mustard, celery, milk | Grilled chicken |
| Soy sauce, dark sauce, sesame oil | Soy, gluten (wheat), sesame | Chilli, lime, ginger |
| Fish balls, fish cakes, fried items | Fish, crustaceans, gluten, egg | Tofu, plain vegetables |
Talk to your doctor first if you…
- have high blood pressure: one fast-food meal can use up most of a day's salt
- have diabetes: fries plus a sugary drink is a fast blood-sugar spike, so know how your body reacts
- have kidney disease: salt, potassium and phosphorus in processed food all matter
How fast food fits into your plan
On normal days, it doesn't. Your plan is built on real meals inside your eating window. If Healthen me knows you eat out a lot, it gives you a short list of safe orders for the places you actually go.
Fast food belongs on Rebel Day, inside your eating window. Order the burger, skip the combo. Tomorrow is your fasting day, and the kitchen is closed anyway.
This article is general information, not medical advice. If you have a medical condition, talk to your doctor before changing how you eat.
Sources
- World Health Organization. WHO calls on countries to reduce sugars intake among adults and children, news release, 4 March 2015 (Guideline: Sugars intake for adults and children). who.int
- Pereira MA, Kartashov AI, Ebbeling CB et al. Fast-food habits, weight gain, and insulin resistance (the CARDIA study): 15-year prospective analysis. The Lancet 2005;365(9453):36–42. doi.org/10.1016/S0140-6736(04)17663-0
- Hall KD, Ayuketah A, Brychta R et al. Ultra-processed diets cause excess calorie intake and weight gain: an inpatient randomized controlled trial of ad libitum food intake. Cell Metabolism 2019;30(1):67–77. doi.org/10.1016/j.cmet.2019.05.008
- Block JP, Condon SK, Kleinman K et al. Consumers' estimation of calorie content at fast food restaurants: cross sectional observational study. BMJ 2013;346:f2907. doi.org/10.1136/bmj.f2907
- World Health Organization. Sodium reduction, fact sheet. who.int
- Ministry of Health Singapore and Health Promotion Board. National health surveys highlight need to focus on healthy diets and lifestyles (National Nutrition Survey 2022), 27 September 2023. moh.gov.sg
- Qin P, Zhang M, Han M et al. Fried-food consumption and risk of cardiovascular disease and all-cause mortality: a meta-analysis of observational studies. Heart 2021;107(19):1567–1575. doi.org/10.1136/heartjnl-2020-317883
- European Food Safety Authority. Acrylamide (topic page; scientific opinion on acrylamide in food, 2015). efsa.europa.eu
- International Agency for Research on Cancer. IARC Monographs evaluate consumption of red meat and processed meat, press release No. 240, 26 October 2015; Bouvard V et al. Carcinogenicity of consumption of red and processed meat. The Lancet Oncology 2015. iarc.who.int
- Leidy HJ, Clifton PM, Astrup A et al. The role of protein in weight loss and maintenance. American Journal of Clinical Nutrition 2015;101(6):1320S–1329S. doi.org/10.3945/ajcn.114.084038
- Regulation (EU) No 1169/2011 on food information to consumers, Articles 9 and 44 and Annex II (the 14 allergens, including non-prepacked food). eur-lex.europa.eu/eli/reg/2011/1169/oj