Whether you’re flying for work, heading to a fitness retreat, or just staying consistent with your nutrition while on holiday, it’s natural to wonder: Can I take protein on a plane? The answer is yes, but there are a few rules to keep in mind depending on how you’re travelling, where you’re flying, and how you’re packing your supplements.
In this guide, we’ll break down how to travel with protein powder or shakes on a plane, what security will allow, and a few practical tips to make your trip smoother, without skipping your gains.
Can you fly with protein powder?
Yes, you can bring protein powder on a plane, both in your carry-on and checked luggage. Protein powders are classified as dry goods, so there’s no issue with bringing them through airport security in most countries, including Australia, New Zealand, the U.S., and the UK.
However, if you’re travelling internationally, it’s always a good idea to check the customs regulations of your destination, especially for any restrictions on animal-based products (like whey protein) or supplements containing banned ingredients.
Important tips:
- Keep the powder in its original container with the label clearly visible.
- If you’re using a smaller container or ziplock bag, security may ask to test it, be prepared for extra screening.
- Avoid carrying very large quantities (over 350g in your carry-on) to reduce potential delays at security.
What about Ready-to-Drink RTD protein shakes?
Liquid protein shakes are treated just like any other liquid at security. This means:
- In carry-on luggage, any liquid must be in containers of 100ml or less, and all liquids must fit into a 1-litre clear resealable plastic bag.
- Most store-bought protein drinks are well over this limit and would not be allowed through security.
- However, you can bring them in your checked baggage, or buy them after passing security at the airport.
Tip: If you need a shake during your flight, bring the powder in a shaker bottle and add water once you’re past the security checkpoint.
What about protein bars?
In fact, protein bars are often the most convenient choice for flying:
- No liquid restrictions – Unlike protein shakes, bars won’t get flagged at security.
- Travel-friendly – Individually wrapped, lightweight, and mess-free.
- No refrigeration required – Most bars are shelf-stable and perfect for long flights or layovers.
- Great for quick refuelling – Easy to eat at the airport, during a flight, or right after landing.
Just make sure your protein bars are commercially packaged if you’re travelling internationally, and always check customs rules if they contain animal-based ingredients (like whey or collagen) in case of quarantine declarations.
If you’re looking for a no-fuss, high-protein snack on the go, protein bars are one of the most practical and compliant options for air travel.
Domestic vs International flights
On domestic flights within Australia, protein powder and supplements rarely present an issue. However, on international flights, your protein might face stricter scrutiny, particularly at customs on arrival.
Countries like New Zealand, for example, have very strict biosecurity laws, and even sealed supplements can be flagged if they contain dairy or animal byproducts.
Best practice:
- Declare your protein supplements if you’re unsure.
- Look for plant-based options when travelling to destinations with tight quarantine rules.
- Always keep the ingredient label intact.
Best ways to pack protein powder for flying
1. Keep it simple (KISS)
If you only need a few servings, portion your powder into a travel-safe tub or individual sachets. This is more convenient than lugging around a full 1kg tub.
2. Use a labelled shaker
Fill your shaker cup with a scoop of powder, keep it dry until you get past security, then add water later. Easy, fast, and compliant.
3. Use ziplocks (use with caution)
Ziplock bags work for short trips, but they can raise questions at security, especially if the powder is unlabelled. Always keep your powder accessible in case you’re asked to explain what it is.
FAQs about flying with protein
Q: Can I bring a protein bar on a plane?
A: Absolutely. Protein bars are solid foods, so there are no restrictions in carry-on or checked luggage.
Q: Will I get stopped at security for protein powder?
A: Sometimes, yes—especially if the powder is loose or unlabelled. It’s not banned, but it may trigger a bag search.
Q: Can I take creatine or pre-workout too?
A: Yes. Most powdered supplements are allowed, but again, check international customs rules before travelling.
Q: What’s the best way to stay on track with protein while flying?
A: Travel with a dry shaker and powder. You can mix it after security or once you’re on the plane.
Key takeaways on travelling with protein
You can take protein on a plane, whether it’s powder, bars, or even shakes, if you follow the rules. For carry-on, dry powders are fine, liquids are restricted, and bars are a great go-to. Just be mindful of the destination country’s customs laws and pack smart to avoid any hiccups along the way.
Travelling doesn’t mean you need to miss a shake. With a bit of planning, your protein routine can keep up with your flight schedule.
