Energy drinks and caffeine labeling: the rules across the EU and US

Caffeine is the active that defines energy drinks and increasingly shows up in functional and pre-workout beverages — and it comes with specific labeling rules that differ sharply between the EU and the US. Get them wrong and you face a mislabeling problem on a high-visibility, heavily scrutinized product category.

The EU: warnings and limits

In the EU, a beverage with a caffeine content above 150 mg per litre must carry a “High caffeine content” statement, with the wording that it's not recommended for children or pregnant or breastfeeding women, plus the caffeine amount per 100 ml. Energy drinks are also generally held to an upper caffeine limit, so both the warning and the level matter. The statement has to appear in the same field of vision as the product name.

The US: GRAS levels and classification

In the US, there's no single federal caffeine cap for all drinks; instead, added caffeine is bounded by food-safety rules — it's recognized as safe for cola-type beverages up to a defined level — and the product's classification matters. Sold as a conventional beverage, caffeine is declared in the ingredient list; sold as a supplement, it appears on the Supplement Facts panel, sometimes within a blend. The classification shapes the disclosure.

Why this trips manufacturers up

The same energy or functional drink can need a front-of-pack warning in the EU and a different treatment in the US, and the threshold that triggers the warning is a precise number tied to the formula. A reformulation that nudges caffeine up can cross a labeling threshold without anyone noticing — the classic source of a non-compliant label.

Tie the label to the caffeine level

Because the warnings and declarations are driven by the caffeine content, the reliable approach is to derive them from the formula: the system knows the caffeine per 100 ml, applies the right threshold per market, and surfaces the required statement automatically — rather than relying on someone to remember the rule.

This is general information, not regulatory or legal advice. Requirements differ by market and change over time, so confirm current rules with the FDA, the relevant EU authority, or a qualified regulatory expert before relying on them.

Where Lemoniq fits

Lemoniq derives caffeine declarations and warnings from the structured formula — tracking the caffeine level, applying the right per-market threshold, and surfacing the required statements — so an energy or functional drink's label stays correct as the formula changes.

The takeaway

Caffeine labeling means EU high-caffeine warnings and limits, US classification-driven disclosure, and thresholds tied to a precise level. Deriving the warnings from the formula is what keeps an energy drink compliant across markets as it's reformulated.

Lemoniq derives caffeine warnings and declarations from your formula, per market. See how it works