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Liquid Limits

Can I take protein powder on a plane internationally?

Last updated Updated 8 weeks ago· Reviewed against current airport security guidance

Short answer

Protein powder is a solid and allowed in any quantity in cabin and checked baggage. Bulk amounts (over ~350g or 12oz in the cabin) often get pulled aside for extra screening. Some countries require declaration.

General guidance

Rule basis: General airport security guidance — rules can vary between airports and change over time. Confirm with your departure airport before you fly.

What to do: Pack to 100ml per container in a single 1-litre clear bag unless you've confirmed a larger allowance at both your departure airports.

Liquid Limits is a travel planning tool, not an official aviation source. Always confirm with the airport before you travel.

Quick answer

Yes, any quantity. Containers over ~350g may be flagged for separate screening in the US.

TSA's '350ml powder rule' isn't a ban — just a heads-up that bigger containers will be checked more closely. Allow extra time.

Cabin vs checked

TypeCabinChecked
Single-serve sachetsYesYes
Standard 1–2kg tubYes, may be screenedYes
Pre-portioned scoops in bagYesYes
Liquid ready-to-drink shake≤100ml in cabinYes

Country notes

Australia and NZ are strictest — declare protein powder on arrival, especially if it contains dairy or meat-derived ingredients (collagen, bone broth). The US and UK rarely block it. Middle Eastern airports occasionally test the powder for prohibited substances.

Packing tips

  • Keep the original sealed tub — easier to verify
  • Pre-portion daily scoops into clear ziplock bags
  • Print the ingredient label if it's a niche brand
  • Avoid white powders in unmarked bags — guaranteed to be tested

FAQs

Is protein powder banned anywhere?

No country outright bans personal-quantity protein powder, but Australia, NZ and the US require declaration if it contains animal products.

Does it count as a liquid?

No, it's a solid. Liquid ready-to-drink shakes do count and are capped at 100ml in cabin.

How much can I bring?

Personal-use quantities (1–2 tubs) are fine. Anything that looks commercial may be flagged at customs.

Check your trip

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