🍫 Protein bar

Protein bars are solid food items and are fully permitted in carry-on baggage, so a screener finding them in your bag will simply confirm what they are and move on. Bars with dense or foil-wrapped packaging can occasionally look ambiguous on the X-ray, but a quick visual check resolves it. No quantity limits apply.

Solid protein bars face no restrictions in the US, UK, EU, Canada, Australia, or any other major aviation system. Unlike liquid protein shakes, bars are classed as solid food items and bypass the 100ml liquid rule entirely. Biosecurity rules at your destination country are a separate matter — some countries restrict certain food items at the border, so check import rules if you're carrying a large quantity.

There are no quantity limits on solid food items like protein bars in carry-on baggage under TSA or equivalent rules. You could bring a dozen bars in your bag without any issue at security. The only practical limit is your bag's size and weight allowance.

No special packing is needed — protein bars can go anywhere in your bag without going into your quart-sized liquids bag. If your bar includes a gel filling or is packaged with a liquid supplement shot, only the liquid portion would fall under the 100ml rule. Otherwise, toss them in your bag and go.