The short answer
An energy drink can be sold in the U.S. either as a conventional beverage (with a Nutrition Facts panel) or as a liquid dietary supplement (with a Supplement Facts panel) — but not both, and not by choice alone. FDA’s January 2014 guidance says it decides by how the product is represented: name, packaging, serving size, recommended intake and marketing.
Words such as “drink”, “beverage”, “water” or “soda” in the name, or claims like “refreshes” or “rehydrates”, make it a beverage. Most energy drinks in cans are beverages.
Beverage or supplement?
| Factor | Points to beverage | Points to supplement |
|---|---|---|
| Name | “Energy drink”, “sparkling water”, “soda” | “Energy shot”, “liquid supplement” |
| Packaging | Cans and bottles like soft drinks | Small vials or shots |
| Serving and intake | Large volumes, drink freely | Defined small dose, daily limit |
| Marketing | Refresh, hydrate, replace soda or coffee | Supplementing the diet |
Caffeine: what FDA has said
- FDA has cited 400 milligrams a day as an amount not generally associated with negative effects for healthy adults.
- FDA notes energy drinks generally contain 54 to 328 mg per 16 fl oz.
- Caffeine is listed as GRAS in cola-type beverages up to 0.02% (21 CFR 182.1180). Higher levels in other drinks need their own safety basis.
- Added caffeine must be listed as an ingredient; stating the amount is not required, but many brands do so voluntarily.
- In April 2018 FDA said dietary supplements of pure or highly concentrated caffeine sold in bulk to consumers are unlawful. About 1,200 mg — less than half a teaspoon of pure caffeine — can cause toxic effects such as seizures.
Other ingredients to check
- Taurine, guarana, ginseng, B vitamins — fine in many products, but each needs a lawful basis in a beverage.
- Colors and preservatives — only FDA-permitted ones; see the Red No. 3 ban.
- Sweeteners — aspartame needs the phenylketonurics statement. See special label declarations.
- Claims — “boosts energy” is a common structure/function-style claim; disease claims are never allowed.
Example: an energy drink from Thailand and an energy shot from Canada
A Thai brand sells a 250 ml canned energy drink with caffeine, taurine and B vitamins. It is a beverage: Nutrition Facts, every ingredient checked as GRAS or an approved additive, caffeine content stated voluntarily. A Canadian company sells a 60 ml “energy shot” with one shot a day as the directions. It labels it a dietary supplement with Supplement Facts and avoids words like “drink” and “refreshing”.
Standard food label review with Nutrition Facts $550. Advanced review with claims $750. FDA food facility registration with U.S. Agent from $300.
Frequently asked questions
Is an energy drink a dietary supplement?
Usually not. If it is named or marketed as a drink or beverage, sold in beverage volumes or marketed to refresh or hydrate, FDA treats it as a conventional food.
How much caffeine can an energy drink contain?
There is no single legal limit for all drinks. FDA lists caffeine as GRAS in cola-type beverages up to 0.02%, and has cited 400 mg a day as not generally associated with negative effects in healthy adults.
Must caffeine content be on the label?
Caffeine must be listed as an ingredient. The amount is not required, but many brands state it.
Can I sell pure caffeine powder?
FDA said in 2018 that supplements of pure or highly concentrated caffeine sold in bulk to consumers are unlawful.
Sources
- FDA Law Blog — FDA finalizes guidance distinguishing liquid dietary supplements from beverages (January 2014)
- FDA — Spilling the beans: how much caffeine is too much? (August 2024)
- IFT — FDA guidance on consumer sales of pure bulk caffeine (April 2018)
- CRN — Facts about caffeine in dietary supplements (21 CFR 182.1180)
Rules checked on November 12, 2026. This article is general information, not legal advice.