Energy drink brands face a labeling puzzle the FDA never fully spelled out in one place: is your product a beverage or a dietary supplement, and does that choice change what has to be on the can? Get it wrong and you risk a warning letter, a retailer rejection, or a costly relabel run.
This guide walks through how the FDA actually treats functional and energy beverages, what must legally appear on the package, where caffeine disclosure stands today, and the mistakes that trip up new brands most often.
Quick Answer
The FDA does not have a dedicated “energy drink” label category. Instead, your product is regulated either as a conventional food/beverage (requiring a Nutrition Facts panel under 21 CFR 101.9) or as a dietary supplement (requiring a Supplement Facts panel under 21 CFR 101.36), depending on how it’s marketed. Every version also needs a statement of identity, net quantity of contents, an ingredient list, and manufacturer/distributor contact information. Declaring the exact milligrams of caffeine is currently common industry practice, not a strict FDA mandate — though that is an area regulators are actively reviewing.
Step 1: Decide Whether You’re a Beverage or a Dietary Supplement
This is the single most consequential labeling decision you’ll make, because it determines which panel, which claims rules, and which ingredient restrictions apply. The FDA looks at how the product presents itself as a whole, not just one label element. Signals that push a product toward “conventional beverage” status include names or brand language using words like “drink,” “beverage,” “water,” or “juice”; packaging sized and marketed for on-the-spot, thirst-quenching consumption; and marketing that compares the product to other beverages (e.g., soda or sports drinks) rather than to vitamin pills or supplements.
If your product instead reads as something meant to supplement the diet — sold in smaller shot-style bottles, marketed for a specific functional benefit, or positioned alongside capsules and powders — it may be classified as a liquid dietary supplement instead. Conventional beverages must comply with standard food labeling rules and get a Nutrition Facts panel; supplements get a Supplement Facts panel and are governed under the Dietary Supplement Health and Education Act framework, with different rules on structure/function claims and new dietary ingredient notifications. Because this classification affects nearly every other labeling decision, confirm it in writing with a regulatory consultant before you finalize artwork.
Step 2: Cover the Required Label Elements
Regardless of which panel you use, FDA food labeling rules under 21 CFR Part 101 require five core elements on every packaged beverage. First, a statement of identity — the common or usual name of the product — must appear on the principal display panel (the front label or its equivalent). Second, the net quantity of contents (fluid ounces or metric equivalent) must appear on that same panel in a type size proportional to the panel area.
Third, you need either the Nutrition Facts or Supplement Facts panel, formatted per FDA’s current layout requirements (updated in the 2016 nutrition label overhaul), listing calories, serving size, and the required nutrients. Fourth, a complete ingredient list in descending order by weight, with any of the major food allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat, soybeans, and sesame) called out per the FASTER Act. Fifth, the name and place of business of the manufacturer, packer, or distributor, so the label can be traced back to a responsible party. Miss any one of these and the product is technically misbranded, even if every other claim on the can is accurate.
Step 3: Handle Caffeine Disclosure the Right Way
Here’s where the rules get murkier. Under current FDA policy, caffeine must be listed in the ingredient statement whenever it’s added as a standalone ingredient — but the agency does not currently require brands to state the exact number of milligrams per serving on the label. Most major energy drink brands voluntarily disclose total caffeine content (from all sources, including natural sources like guarana or green tea extract) as a separate declaration near the Nutrition or Supplement Facts panel, following industry guidance published by the American Beverage Association. That voluntary guidance also recommends an advisory statement noting the product isn’t intended for children, pregnant or nursing women, or people sensitive to caffeine — a practice worth adopting even though it isn’t a federal requirement.
This area is actively moving. In 2026, the FDA placed caffeine labeling on its regulatory priority list after increased scrutiny of high-caffeine beverages, including state-level investigations into specific brands and reports tying excessive caffeine intake to serious health incidents in young consumers. The agency has signaled it intends to develop best-practice guidance for clearer added-caffeine disclosure, though as of this writing that guidance has not been finalized into a binding rule. If you’re formulating or relabeling now, build in a per-serving caffeine declaration and a sensitivity advisory as your baseline — it’s already the de facto industry standard and positions you ahead of whatever the FDA finalizes. For daily-intake context, the FDA’s own consumer guidance notes that up to 400 mg of caffeine per day is generally not associated with dangerous effects in healthy adults, which is a useful reference point if you’re deciding how to phrase any consumer-facing caffeine education on your packaging or site.
Tips and Common Mistakes
Don’t mix Nutrition Facts and Supplement Facts formatting — pick the classification that matches your actual marketing and stay consistent across the can, case packaging, and website, since inconsistent positioning is a common trigger for FDA scrutiny. If you’re a conventional beverage making a structure/function claim (e.g., “supports focus”), note that FDA’s dietary-supplement disclaimer under 21 CFR 101.93 — the boldface “This statement has not been evaluated…” language and its 30-day FDA notification — is not required on a conventional food label; adding it anyway can itself blur your classification and invite questions about why a “beverage” is using supplement disclosure. What conventional beverages do need to watch is the line between a permitted structure/function claim and a disease claim (anything implying you diagnose, treat, cure, or prevent a disease), since crossing that line can get the product regulated as an unapproved drug regardless of which panel is on the can. Double-check that your total caffeine figure accounts for every source in the formula, not just added caffeine anhydrous — regulators and class-action plaintiffs alike have gone after brands for undercounting caffeine from botanical extracts. Finally, revisit your label at least once a year: allergen rules (like the 2023 sesame requirement), Nutrition Facts formatting, and now caffeine disclosure expectations have all shifted in the past few years, and a label that was compliant when you launched may not be compliant today.
Explore more: more beverage compliance guides.
FDA energy drink labeling rules FAQs
Is it legal to sell an energy drink without listing caffeine milligrams on the label?
Under current FDA rules, yes — caffeine must appear in the ingredient list if added as a standalone ingredient, but stating the exact milligram amount isn’t yet a federal mandate. Most major brands disclose it voluntarily, and the FDA is actively developing guidance that could change this, so it’s the safer long-term choice to include it now.
How do I know if my product should be labeled as a beverage or a dietary supplement?
The FDA looks at the whole picture: product name, packaging format, serving size, and how it’s marketed. If it’s positioned and consumed like a drink (bottled, sized, and advertised as a beverage), it’s typically a conventional food with a Nutrition Facts panel. If it’s positioned as supplementing the diet, it likely needs a Supplement Facts panel instead. Because the line isn’t always obvious, get regulatory sign-off before printing labels.
Does a conventional energy drink need the “not evaluated by the FDA” disclaimer if it makes a claim like “boosts energy”?
No. That disclaimer, along with the requirement to notify FDA within 30 days of using the claim, applies specifically to dietary supplements under 21 CFR 101.93. Conventional beverages making structure/function claims still must keep those claims truthful, not misleading, and clear of disease-treatment language, but the supplement disclaimer itself is not required on a conventional food label.
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Photo: The U.S. Food and Drug Administration / Public domain, via Wikimedia Commons.