The word “fit” on a food label is not regulated: anyone can put it on a package without breaking any European rule. There are no thresholds to meet, parameters to satisfy or authorities that verify it. That does not automatically make everything carrying the word false, but it does mean you need to know what actually matters: claims regulated under EU Regulation 1924/2006 have specific conditions, while free-form terms such as “fit,” “clean” or “natural” have none.
Every year the market for “fit” products grows. Entire shelves of protein bars, high-protein yogurts, light biscuits, sports drinks and high-fiber cereals. Packaging designed to communicate health, performance and a smart choice. Clean colors, sans-serif fonts, English claims that sound scientific.
The problem is not that these products exist. The problem is that the word “fit” means nothing from a legal standpoint. It is not a regulated nutrition claim. It has no thresholds to meet, no parameters to satisfy and no authority that verifies it. Anyone can print it on any package tomorrow morning without breaking a rule.
That does not automatically make everything carrying that word false. But it does make it necessary to know what to look at — and what to ignore.
What is regulated and what is not
EU Regulation 1924/2006 governs nutrition claims in the European Union. It establishes that authorized claims — and only those claims — may appear on labels, each subject to specific conditions.
So far, the system works. The problem is with unregulated claims — “fit,” “suitable for athletes,” “clean,” “natural,” “wellness” — which do not appear in the Regulation’s annex, have no conditions to meet and can be used freely. They are implicit health signals with no requirement to prove anything.
A manufacturer that writes “high protein” has to show that 20% of the product’s energy comes from protein. A manufacturer that writes “fit” has to show nothing.
There is more. Using the word “protein” in the commercial name of a product — “Protein Bar,” “Protein Yogurt” — rather than as a regulated nutrition claim can bypass the 20% requirement entirely. A fantasy product name is not subject to Regulation 1924/2006 in the same way. It is a legal route that can evoke a nutritional benefit without technically having to meet that threshold.
What the most common products actually look like
Protein bars contain around 20 to 26 grams of protein per 100 grams — but the stated serving is typically 35–45 grams, which brings the actual protein per serving down to roughly 5–10 grams: about as much as a standard plain yogurt. Many contain 9–12 grams of fat per serving, some of it saturated, along with added sugars — fructose, caramel syrup — that appear in the ingredient list but rarely on the front of the package.
Protein yogurts often achieve the “high protein” claim by adding concentrated milk or soy protein. Their calorie content can be similar to or higher than that of a standard yogurt. Many contain significant amounts of artificial sweeteners.
Gluten-free biscuits presented, implicitly, as healthier deserve a separate note. “Gluten-free” is a medical claim intended for people with celiac disease — it is not a general indicator of healthfulness. Gluten-free biscuits often replace wheat with rice flour or corn starch, producing a higher glycemic index than the conventional product, with comparable or higher amounts of fat and sugar.
Sports drinks are the best-documented case. A 2024 study of 114 claims on sports drinks found that none of the claims analyzed fully complied with the requirements of EU Regulation 432/2012. Only 14 out of 114 — 12.3% — were “nearly compliant.” Most used unauthorized variations of approved wording: “increases endurance” instead of the exact approved phrase “contributes to the maintenance of endurance performance during prolonged endurance exercise.” An apparently tiny change in wording turns an authorized claim into an unauthorized one.
The health-halo effect
There is a cognitive mechanism that makes all of this more insidious. It is called the health-halo effect, and it is one of the most studied biases in eating behavior.
It works like this: when a product carries a health-related attribute — “high protein,” “high fiber,” “natural” — consumers tend to perceive the entire product as healthier, underestimating calories and nutrients of concern. A 2018 PubMed-indexed study showed that when the word “protein” appears in the product title, not as a regulated nutrition claim but as part of the commercial name, overall perceived healthfulness rises significantly. The effect is not even neutralized by the presence of a front-of-pack nutrition traffic light.
The paradoxical result, confirmed by more recent research from 2025, is that people who regularly read nutrition labels appear more susceptible to the halo effect — not less. Familiarity with claims creates a degree of trust that lowers their guard precisely around products that make heavy use of them.
EFSA’s position on sports claims
EFSA has assessed more than 2,150 generic functional claims under Regulation 1924/2006. For claims relating to sports performance, the authorized framework is set out in EU Regulation 432/2012 and is far narrower than the market might suggest.
The authorized claims are few and specific: carbohydrate-electrolyte solutions may state that they “contribute to the maintenance of endurance performance during prolonged endurance exercise,” but only with precise formulations of carbohydrates and electrolytes and in the context of genuinely prolonged exercise. Creatine may claim increased performance in successive bursts of short-term, high-intensity exercise at 3 grams per day. Caffeine may refer to reduced perceived exertion at specific doses relative to body weight.
EFSA systematically rejects claims when the evidence is generic or indirect, when doses in the studies do not match those in the product being sold, or when a benefit has been shown only in professional athletes while the product is marketed to the general population.
How to choose
The first thing to do is separate regulated claims from free-form ones. “High protein” has a verifiable threshold. “Fit” does not. That distinction alone does much of the work.
The second is to look at the nutrition table per serving, not only per 100 grams. A bar with 22% protein per 100 grams that weighs 35 grams is giving you less protein than an egg. The 100-gram comparison is useful for comparing products with one another; it is not the best way to understand what you are actually eating.
The third is to remember that a product optimized for sports performance makes sense if you train with a frequency and intensity that justify additional protein beyond a normal diet. For most people who exercise moderately, protein needs are comfortably covered by a balanced diet that includes meat, fish, legumes and dairy products — without bars, powders or enriched yogurts.
There is nothing wrong with a “fit” product if you buy it knowing what it actually contains. The problem is buying it because you think the label has already done the thinking for you.
Frequently asked questions
- Is the word “fit” on a food label regulated?
- No. “Fit,” “clean,” “natural” and “wellness” are not regulated nutrition claims under EU Regulation 1924/2006 and have no conditions to meet. Anyone can use them on a product without a specific legal threshold.
- How much protein do protein bars actually contain?
- Protein bars may contain 20–26 g of protein per 100 g, but the declared serving is typically 35–45 g. That works out to about 5–10 g of protein per serving — roughly as much as a standard plain yogurt. This is not formally deceptive, but it changes the real calculation considerably.
- Are gluten-free biscuits healthier than regular biscuits?
- Not automatically. “Gluten-free” is intended for people with celiac disease; it is not a general health claim. Gluten-free biscuits often replace wheat with rice flour or corn starch and can have a higher glycemic index, while their fat and sugar content may be comparable to or higher than conventional biscuits.
- What is the health-halo effect?
- It is a cognitive bias in which a health-related attribute — “high protein,” “high fiber,” “natural” — makes consumers perceive the whole product as healthier and underestimate calories or nutrients of concern. Research cited in the source article suggests that people who regularly read labels may be more susceptible to this effect, not less.
- Who may actually benefit from a “fit” or high-protein product?
- People who train often and intensely enough to justify additional protein beyond their normal diet may find such products useful. For moderate physical activity, protein needs are usually covered by a balanced diet containing meat, fish, legumes and dairy products, without a specific need for enriched products or supplements.