TSA protein: can you bring a protein shot in a carry-on?

TSA does not “approve” brands. It screens liquids, gels, and aerosols under the 3-1-1 rule: containers of 3.4 ounces (100 milliliters) or less, all fitting in one clear quart-sized bag, one bag per passenger for carry-on. Neo Protein is bottled at 3.4 oz / 100 ml so it can go in that bag like any other travel-size liquid.

Rules can differ by airport technology, officer discretion, and destination country. This page is a packing guide, not official TSA policy. Read the current language on TSA.gov before you fly.

U.S. carry-on protein at a glance (verify on TSA.gov)

U.S. carry-on protein at a glance (verify on TSA.gov)
ItemTypical sizeCarry-on pathMain constraint
Neo Protein shot3.4 oz / 100 mlLiquids bag (3-1-1)Must fit in quart bag with other liquids
RTD protein shake11–14 ozUsually checkedOver 3.4 oz liquid limit
Protein powder tub1–5 lbAllowed, extra screening possibleLarge powders in carry-on
Single-serve powder packetSmallUsually carry-onStill a powder; keep accessible

Liquids vs powders at the checkpoint

Ready-to-drink protein in a bottle is a liquid. If it is over 3.4 oz, it belongs in checked luggage unless you have a separate exemption (for example, some medically necessary liquids, which you must declare). A 11–14 oz protein shake will not go through carry-on as a standard toiletry liquid.

Protein powder is a powder. TSA has separately screened larger powder containers in carry-on (often discussed as over 12 ounces / 350 milliliters by volume). A big tub in your personal item can slow you down even when it is allowed. A 3.4 oz shot avoids both the large-liquid problem and the large-powder problem.

How to pack Neo Protein for a flight

Put unopened shots in your quart-sized bag with other liquids. Keep the bag easy to pull out. Do not count on every airport waving through liquids larger than 3.4 oz even if you have heard of CT scanners. For checked bags, bottles can go in luggage; wrap them against leaks. International security may use 100 ml limits that match the same bottle size.

Frequently asked questions

Yes, if the bottle is 3.4 ounces (100 milliliters) or less and fits in your one quart-sized liquids bag. Neo Protein is 3.4 oz / 100 ml. TSA officers make the final call at the checkpoint. Check TSA.gov for the current 3-1-1 rule.

Security rules change. TSA.gov and the officer at your checkpoint control what goes through. Neo Protein is not affiliated with the Transportation Security Administration.

25g protein. 3.4 oz. 100 calories.

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