Summer holidays bring a lot of anticipation, the countdown to departure, the packing list pinned to the fridge, and the hope that the weather holds. For anyone living with diabetes, that same excitement comes with an extra layer of planning, one that makes all the difference between a holiday spent managing the condition well and one spent firefighting it.
Diabetes and the Summer Heat
Diabetes and prediabetes affect roughly one in five UK adults, and the condition itself becomes harder to manage once temperatures rise.
Heat complicates things further still, since blood glucose becomes harder to predict as temperatures climb, and insulin itself can be damaged by warmth, with clear insulin turning cloudy as a visible sign it is no longer safe to use.
Footwear in the Heat
Comfort sock specialists Gentle Grip recently teamed up with Diabetes UK to develop a foot care and diabetes advice guide, recommending daily foot checks and proper footwear, rather than going barefoot in hot conditions.
Heat causes feet to swell, which means shoes that fit comfortably at home can become tight and create pressure points on holiday.
Regular checks matter more than usual, particularly where reduced sensation means an injury or blister might go unnoticed.
Loose sand, warm pavements and hours spent barefoot by a pool all carry similar risk, so well-fitting, supportive shoes matter more than the specific setting.
Packing and Preparing for Travel
Proper packing and planning beforehand removes most of the stress once the holiday actually starts. Insulin should travel in hand luggage rather than the hold, where cargo temperatures can drop well below freezing, and the NHS advises carrying a letter from a GP or diabetes care team confirming the need to bring insulin and associated equipment onto a flight.
A cool bag or insulated pouch keeps insulin at a safe temperature throughout the journey, while packing two to three times the usual supply covers any unexpected delays or mishaps.
Socks designed specifically for diabetic foot care are worth adding to that list alongside the usual medical essentials.
Staying Hydrated and Monitoring Blood Sugar
Fluid intake matters more on holiday than people tend to assume, particularly since thirst can become a less reliable signal once the body is already under heat stress.
Drinking water regularly throughout the day, rather than waiting to feel thirsty, helps keep blood glucose levels steadier in warm conditions.
Checking levels more frequently during hot spells is worth adding to the daily routine, since sweating and dehydration can both skew readings in unpredictable directions.
Carrying a fast-acting sugary snack is also worth doing on any day involving extra activity, swimming, or long stretches in the sun, in case levels dip unexpectedly.
Preparation is Key
None of this makes a summer holiday more complicated than it needs to be, only better prepared for. With the right planning in place, the heat becomes one more thing to enjoy rather than something to work around or avoid altogether.
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