The American Association of Diabetes Educators suggests a plan for ensuring your next travel adventure is safe and successful.

Over-pack your medications.

Gone for a week? Pack two weeks’ worth of your diabetes medications in case of travel delays or misplaced supplies (insulin, syringes, testing strips, extra batteries for your pump, a first-aid kit, glucagon emergency kit). If you use an insulin pump, ask the company if you can bring a backup in case yours fails. Have a prescription from your doctor for insulin or oral medication in case of an emergency.

Protect your supplies.

Keep your medications and supplies close at hand and don’t put them in checked luggage or in the car trunk, where they can be exposed to harmful extreme temperatures (too hot or too cold). If you’re flying, keep them in the original packaging (so no one questions they’re yours) in a bag separate from your toiletries, as requested by the TSA. Don’t worry, the TSA allows you to go over the 3.4 liquid-ounce carry-on limit for diabetes medications and supplies.

Identify yourself.

Wear your medical bracelet or necklace that notes you have diabetes and take insulin (if you do). Bring a doctor’s note that explains you have diabetes and lists your medications, as well as a prescription in case you need more. Carry a health card that includes your emergency contact and doctor’s name and phone number. Learn how to say “I have diabetes,” “sugar,” and “orange juice, please” in the language of the country you are visiting.

Carry snacks and low blood sugar treatment.

Low blood sugar (hypoglycemia) can strike any time and food access during travel is unpredictable, so be sure to bring plenty of snacks such as peanut butter crackers, granola bars, and trail mix as well as glucose tablets or gel.

Simplify flying.

Tell the TSA folks that you have diabetes (they’re used to accommodating people with health issues). Visit www.tsa.gov/traveler-information/passengers-diabetes before your trip to learn about current screening policies. If you plan to inject insulin while flying, be forewarned—the pressurized air can make it more challenging to draw up your insulin, if using a vial and syringe, so be extra careful not to inject air into the bottle.

Test often.

New foods, increased activity, and different time zones can throw your glucose levels out of whack, so be sure to test frequently, including before and after meals. If you take insulin, keeping your levels steady can be tricky when changing time zones, so make a plan to adjust your schedule for injecting. Before your trip, see a diabetes educator, who can help you with this challenging process.

Favor your feet.

Wear comfortable well-fitting shoes and socks at all times. Never go barefoot. Check your feet often, especially after a hike or long walk. Feet and ankles often swell during flights so consider wearing light knee-high compression stockings or bring thinner socks to change into if your feet swell. Wear a shoe that can be loosened if that occurs. Pointing and flexing your ankles during a flight can improve blood flow in your calf muscles and decrease swelling as well as lower the risk of blood clots.

Prepare for a health emergency.

If you need medical treatment, ask your hotel to recommend a local doctor who treats diabetes. Before you travel overseas, get a list of local English-speaking doctors through the International Association for Medical Assistance to Travelers at www.iamat.org.