Sun, Sea and Sausages: How to Come Back From Your Hols Still in Ketosis (Or Cheerfully Not)

Let's be honest about something before we start: you're going on holiday. You've booked two weeks in the Algarve, or maybe that Turkish all-inclusive your sister wouldn't stop raving about, and somewhere in the back of your mind is a small, anxious voice asking whether six months of keto is about to dissolve into a puddle of sangria and paella.

We're not going to pretend the answer is simple. But we've been on enough airport runs to know that a bit of planning beats a lot of regret — and that sometimes, the healthiest thing you can do is order the ice cream and get on with your life. Both truths live in this article.

The Airport Is the First Test (And Boots Is Not Your Friend)

You arrive at Manchester or Gatwick two hours early, as one does, and suddenly you're trapped in a retail purgatory where every sandwich contains 45g of carbs and the 'healthy' options are basically sugar with a marketing budget.

What actually passes the test:

• Boots Meal Deal, deconstructed: skip the sandwich and drink, grab the protein pot (chicken or egg based, usually 2–5g carbs) and a bottle of water. £3.99 for half a meal deal is still cheaper than the airport café.
• WHSmith's nuts and jerky: the nut selections are fine; read the jerky label, as some brands are suspiciously sugary.
• The Full English at Wetherspoons: order it without the toast, hash browns and beans. Nobody will blink. Ask for extra mushrooms.
• Pret's 'Chef's Salads': decent, if pricey. Check the dressing — some sneak in sugar.

One warning: the flight itself is a carb trap. Airlines cater for the masses, and the masses want bread. Eat properly before boarding, or bring your own nuts.

Decoding the All-Inclusive Buffet

Here's the secret about buffets: they're actually brilliant for keto, because the variety works in your favour. You're not stuck with one carb-heavy dish — you're standing in front of fifteen options and you only need three of them.

Breakfast is your easy win. The egg station is your best mate — omelettes made to order, fried eggs, whatever you like. Add bacon (Spanish and Turkish bacon is more like rashers, but it counts), grilled tomatoes instead of the fruit platter, and a black coffee. Avoid the 'fresh juice' — it's essentially pudding in a glass, and the pastries will be calling your name from across the room. Don't walk past the pastry table. Walk the long way round.

Lunch and dinner require a lap. Do a full circuit of the buffet before you pick up a plate. You'll usually find: a carvery or grill station (excellent), a salad bar (watch the dressing — ask for olive oil), a fish dish of some kind, and grilled vegetables. The pasta station and the bread basket are scenery. Admire them, don't eat them.

The dessert situation is where all-inclusives earn their reputation. Our practical advice: the cheese board is your friend at dinner. If you want the actual dessert one night, have it. One slice of cake is a rounding error, not a failure.

The Cocktail Question

A piña colada contains roughly 30g of sugar — more than a can of Coke. A week of them will absolutely knock you out of ketosis, and you'll feel rough for it.

Better poolside options:

• Vodka or gin with soda and fresh lime — the classic, for a reason
• Dry white wine or rosé — around 3–4g per large glass
• A 'dirty' mojito — ask for it without the sugar syrup
• Beer — honestly, a lager is 10–15g of carbs. If a cold pint on the beach is the whole point of the holiday, have the pint. Just know what it is.

And drink water. The sun plus alcohol plus a carb-depleted body is a recipe for feeling dreadful by day three.

The 'When In Rome' Clause

Here's the bit where we're not going to be precious. If you're in Portugal, the seafood rice is a cultural experience. If you're in Turkey, the fresh bread with the mezze is genuinely part of the joy. We're a science site, not a misery cult.

Our honest take: aim for 80/20 on holiday. Eat keto at breakfast and most lunches, relax a little at dinner, and accept that the scales may be unkind when you get home (mostly water, incidentally — it'll shift within a fortnight). The people who come back and quietly resume their routine do infinitely better than the people who decide the holiday 'ruined everything' and never restart.

Your Pocket Travel Card

Screenshot or print this for the airport:

• Swap toast for the egg station, extra bacon, or a side of grilled tomato
• Swap chips for a side salad with olive oil, or the grilled veg from the carvery
• Swap juice for black coffee, or water with lemon
• Swap sweet cocktails for spirits with soda and lime, or dry wine
• Swap dessert for the cheese board — or just have the dessert, once, and enjoy it
• Swap the airport meal deal sandwich for a protein pot and nuts
• Swap guilt for perspective. It's a fortnight, not a lifestyle.

Pack some emergency nuts in your suitcase for the pool-lounger snack attacks, drink more water than you think you need, and — this is the real science — remember that a good holiday lowers cortisol, and cortisol messes with weight more than most people realise. Rest is part of the plan.

Go on. Book the flight. The omelette station will be waiting.