Yes. Protein and energy powders are allowed in carry-on and checked bags. In carry-on, containers over 12 oz (350 ml) must go in a separate bin for X-ray and may be opened, so TSA suggests checking large tubs.
Powders are allowed. Any powder-like substance over 12 oz / 350 ml must be placed in its own bin for X-ray and may need extra screening, including opening the container.
Allowed in checked bags in any amount; TSA encourages putting non-essential powders over 12 oz here.
Checked against official TSA, FAA and government pages on . These are US rules unless we say otherwise; the TSA officer at the checkpoint makes the final call.
The rules in numbers
- Powders over 12 oz (350 ml) in carry-on: separate bin for X-ray, possible additional screening
Packing tips
- Pre-portion servings into small bags or containers under 12 oz to skip the separate-bin step.
- Keep supplements in their labeled original packaging to speed up any secondary screening.
- Mixed protein shakes are liquids: 3.4 oz (100 ml) max in carry-on.
Questions people ask
Can I bring protein powder in my carry-on?
Yes. Tubs over 12 oz must be screened in a separate bin and may be opened, so smaller portions are easier.
Is there a limit on protein powder on planes?
TSA sets no maximum, but powders over 12 oz (350 ml) get extra screening in carry-on.