Can You Bring Supplements and Powders on a Plane? TSA Rules and Packing Tips

What Supplements Can You Bring on a Plane?

But can you bring supplements on a plane? In most cases, yes. Vitamins, pills, gummies, and powdered supplements can all go through TSA security. Powders come with a few extra screening rules, though, and international trips usually involve another set of restrictions once you leave the U.S.^1-2

For most everyday supplements, the TSA rules are pretty straightforward:

Vitamins, capsules, and tablets: These can go in your carry-on or checked luggage.¹ That means packing your vitamins in a carry-on is generally fine.

Gummies: Gummy vitamins and supplements are also generally fine in your luggage. They are not treated like beverages under the TSA liquids rule.

Powders: Protein powders and other powdered supplements are permitted in carry-on bags. The extra rule kicks in when a powder container is larger than 12 ounces or 350 mL.²

Liquid supplements: Standard liquids in a carry-on must follow the 3-1-1 rule: containers of 3.4 ounces (100 mL) or less, packed in a quart-size bag.

What Is the TSA Powder Rule?

The TSA powder rule tends to get misunderstood because 12 ounces is not always the cutoff where your supplement suddenly becomes prohibited.

Powder-like substances over 12 ounces or 350 mL in a carry-on may need additional screening. TSA can ask you to place the container in a separate bin, and the container may need to be opened. If security cannot clear the powder, it will not be allowed into the aircraft cabin. So, TSA recommends putting larger quantities in checked baggage when possible.²

If you're bringing small, travel-size servings of powdered supplements on a plane, the total amount of powder from all your travel packs can exceed 12 ounces. They would be screened like anything else in your bag.

Packing Supplements Without the Security Stress

Don't stress - you do not need a complicated system for traveling with supplements. A little organization is usually enough.

For pills and gummies: use packaging that makes it easy to tell what you brought. TSA does not require vitamins and supplements to be in original packaging. However, prescription medications may have different requirements - check with your healthcare provider and state laws regarding prescription drug labeling.⁵

For powders: This is where individual travel packs can be handy. Smaller packets take up less room, and you'll avoid carrying one large container through security. If you do need to bring a bigger tub or pouch in your carry-on, keep it somewhere reasonably accessible in case TSA wants a closer look at it.

Use original packaging for powders: You should probably think twice before dumping an unidentified powder into a random plastic bag. That does not automatically make it prohibited (although the optics aren't ideal), but clearly identifiable packaging can make things simpler if your bag gets pulled aside.

What Should You Expect at the Security Checkpoint?

Most supplements in carry-on luggage go through the X-ray along with the rest of your belongings. TSA may pull an item aside if officers need a closer look, and large powder containers are more likely to need that extra step.²

If that happens, it doesn't mean you did anything wrong. But do give yourself a little extra time, especially if you're carrying a larger amount of powder.

One more thing for international trips: getting something through TSA only covers departure security in the US. Other countries have their own rules about what can cross their borders. The State Department recommends checking restrictions for every country you plan to visit or transit through, especially if you take dietary supplements.⁴ TSA rules can and do change. Before you fly, check the current standards and requirements on the TSA.gov website.

Keep Your Supplements Easier to Pack

If AG1 is coming with you, pack our lightweight, individual AG1 Next Gen Travel Packs or AG1 Pro Travel Packs so you can mix your daily healthy drink on the road. (If gummies are more your speed, shop AG1 Essentials Gummies.)

Pack the servings you need, add water or juice when you're ready, and keep one part of your daily routine simple while you're away!

Frequently Asked Questions

Do vitamins have to be in original bottles when flying?

No, not for TSA screening. Vitamins are allowed in carry-on and checked luggage.^1-5 Keeping things labeled can still save some confusion, especially on an international trip.

Will TSA open my vitamins?

Usually there is no reason for TSA to open an ordinary bottle of vitamins, but officers can inspect items if something needs additional screening. Powder containers are more likely to get extra attention—even more so when they exceed 12 ounces or 350 mL.²

Can I take supplements through airport security?

Yes. Most common vitamins, pills, gummies, and powders can go through TSA security.^1-2 Liquid supplements need to meet the normal carry-on liquid rules unless a medical exception applies.³

Can I bring protein powder in my carry-on?

Yes, protein powder in a carry-on is allowed. But if the container is over 12 ounces or 350 mL, be prepared for some additional screening.²

References:

1. Transportation Security Administration. Vitamins. Accessed August 20, 2026. https://www.tsa.gov/travel/security-screening/whatcanibring/items/vitamins

2. Transportation Security Administration. What is the policy on powders? Are they allowed? Accessed August 20, 2026. https://www.tsa.gov/travel/frequently-asked-questions/what-policy-powders-are-they-allowed

3. Transportation Security Administration. Liquids, aerosols, and gels rule. Accessed August 20, 2026. https://www.tsa.gov/travel/frequently-asked-questions/liquids-aerosols-and-gels-rule

4. US Department of State. Medicine and health. Updated August 11, 2025. Accessed August 20, 2026. https://travel.state.gov/en/international-travel/planning/guidance/medicine-health.html

5. Transportation Security Administration. Travel tips. Accessed August 20, 2026. https://www.tsa.gov/travel/travel-tips