Can I take protein powder on a plane?

Can I take protein powder on a plane internationally?

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.

Last updated May 27, 2026 · Reviewed against current airport security guidance

Short answer

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.

At a glance

Security · Airline · Border

Security

Will this pass the checkpoint?

Check rules

Rules vary by airport — some still enforce 100ml, others now allow 2L containers in CT scanners.

Source: Airport operator pages

Airline

Can this travel in cabin or checked baggage?

Cabin OK

Most airlines defer to airport security on liquids in the cabin.

Border

Can you bring this into the destination country?

Usually OK

Liquids themselves are rarely a customs issue — but contents (alcohol, dairy, CBD) might be.

Three separate rule systems · Any one can stop your item

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

Type	Cabin	Checked
Single-serve sachets	Yes	Yes
Standard 1–2kg tub	Yes, may be screened	Yes
Pre-portioned scoops in bag	Yes	Yes
Liquid ready-to-drink shake	≤100ml in cabin	Yes

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