Chromium and blood sugar: what the claim covers
Futures Nutrition Editorial Team · 13 August 2026
Chromium and blood sugar: what the claim covers
The short answer: the sentence "Chromium contributes to the maintenance of normal blood glucose levels" is an officially authorised health claim (Regulation (EU) No 432/2012). The decisive word is "maintenance": the claim describes a contribution to a normal bodily function in healthy people. It does not say that chromium brings elevated values down, and it must have nothing to do with diabetes — disease references are expressly prohibited for foods.
Standing in front of the shelf, most people read the sentence the other way round: as a promise that a supplement regulates blood sugar. That short circuit is exactly why the wording sounds so stilted — it is a legally negotiated text, not an advertising slogan. It is worth taking it apart once.
The sentence word by word
Exactly two claims are authorised for chromium, and in precisely this wording:
- Chromium contributes to normal macronutrient metabolism.
- Chromium contributes to the maintenance of normal blood glucose levels.
Both may only be used if the product is at least a source of chromium within the meaning of Regulation (EC) No 1924/2006 — that is, if it reaches 15 % of the nutrient reference value per daily portion. The reference value for chromium is 40 µg, so the threshold is 6 µg per recommended daily portion.
What follows from that, and what does not, can be set side by side:
| Wording | Status |
|---|---|
| "Chromium contributes to the maintenance of normal blood glucose levels" | authorised, Regulation (EU) No 432/2012 |
| "lowers blood sugar", "regulates blood sugar" | not authorised — strengthens the claim beyond its wording |
| "for diabetes", "for diabetics" | inadmissible: food information must not attribute to a food the property of preventing, treating or curing a disease (Art. 7(3) of Regulation (EU) No 1169/2011) |
| "helps with weight loss", "for a normal body weight" | no authorised claim exists for chromium |
| "against tiredness" | no authorised claim exists for chromium (for iron, magnesium or vitamin C it does) |
Why "maintenance" does not mean "reduction"
Health claims under Article 13 of the health claims regulation address the general healthy population. They describe that a nutrient contributes to a normal function — to normal blood clotting, to normal muscle function, and here to the maintenance of normal blood glucose levels. A state that is already normal can be maintained, but not improved; the whole claim lies in that.
Everything beyond that falls into other categories. Claims on the reduction of disease risk form a separate group that has to be authorised individually (Article 14). And statements about treatment or cure are not provided for at all in food law — that is what medicines legislation is for.
For the reader this means something quite practical: the sentence on the pack is not information about what a supplement does to measured values. It is the information that chromium plays a role in normal metabolism and that the product contains enough of it to be allowed to mention that.
Where the sentence comes from
The European Food Safety Authority (EFSA) assessed four chromium claims in a single opinion in 2010 (EFSA Journal 2010;8(10):1732): the contribution to normal macronutrient metabolism (ID 260, 401, 4665, 4666, 4667), the maintenance of normal blood glucose concentrations (ID 262, 4667), the contribution to the maintenance or achievement of a normal body weight (ID 339, 4665, 4666) and the reduction of tiredness and fatigue (ID 261).
Two of them are on today's list of authorised claims, two are not. So anyone who reads something about weight or tiredness on a chromium pack is reading something that should not be there — it was assessed, it did not make the list.
The contradiction worth knowing about
Four years after the claim assessment, the same EFSA panel looked at chromium again, this time with the question of dietary reference values for intake (EFSA Journal 2014;12(10):3845). The outcome was unambiguous: the mechanism by which trivalent chromium is supposed to influence insulin action is not established; the panel saw no evidence that chromium is an essential trace element. Neither an average requirement nor an intake recommendation could be derived. And the sentence that matters here: there is no evidence of beneficial effects associated with chromium intake in healthy subjects with normal blood glucose.
The reason lies in the structure of the available studies. Most investigations of chromium supplementation were carried out in people with impaired glucose tolerance or lipid metabolism disorders; in EFSA's assessment, no conclusions for healthy people can be drawn from them. One of the few studies comparing both groups directly is a randomised cross-over trial with 17 participants from 1991: four weeks of 200 µg chromium daily as chromium chloride or placebo, on a strictly controlled diet providing less than 20 µg chromium per day. Glucose and insulin values after a load test were lower at the end of the chromium phase only in the eight participants with elevated values — in the nine with normal values, nothing changed.
How does that fit with an authorised claim? They are two different procedures with two different questions. In 2010, the question was whether a relationship between chromium and a normal bodily function was sufficiently substantiated; in 2014, how much chromium a person needs — and whether an intake value could be derived from a health benefit. Once authorised, claims stay on the list until the Commission changes it. Both therefore stand side by side, and anyone reading the pack should know both.
What chromium does in metabolism — and what is open
The idea behind both claims is old: trivalent chromium, chromium(III), is said to be necessary for the effectiveness of insulin in processing carbohydrates, fats and protein. Historically this went by names such as "glucose tolerance factor". EFSA notes that this role is postulated but not substantiated: attempts to produce chromium deficiency in animal models have not given consistent results, and for animal nutrition the authority sees no evidence of essentiality. The indications of a requirement in humans come essentially from cases of long-term artificial nutrition via the vein.
The second authorised claim — normal macronutrient metabolism — refers, incidentally, to exactly those three: carbohydrates, fats, protein. It is the more general of the two and appears more often in combination products than the blood glucose wording.
What this means for the pack on the shelf
A fairly sober purchase aid follows from all this. With chromium, the number on the front says little, because the reference value is very low at 40 µg: 6 µg are already enough for the authorised claim, and 200 µg are, arithmetically, 500 % of the reference value. Three figures are worth keeping apart: the estimated adequate intake of the German Nutrition Society (30-100 µg per day for adolescents from 15 years and adults), the nutrient reference value used for labelling (40 µg), and EFSA's guidance value for additional intake from supplements and fortified foods (250 µg).
Our Chromium 200 µg provides 200 µg of chromium as chromium picolinate per tablet. That is above the maximum level proposed by the German Federal Institute for Risk Assessment (60 µg per recommended daily portion, 2021) and below EFSA's guidance value of 250 µg for additional intake from supplements and fortified foods. Neither figure is a legal limit: binding European maximum levels for vitamins and minerals in food supplements have still not been set.
Anyone taking several products alongside each other should add up the labels — chromium is often tucked away in multivitamin and mineral combinations, which is worth checking in the Minerals category; all chromium products are in the Chromium category.
And the most important point in practice: if blood glucose values really are the issue — because there is a test result or a suspicion — that belongs in medical hands, not on the shelf. Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle.
Frequently asked questions
May a chromium pack state that it lowers blood sugar? No. Only the wording "Chromium contributes to the maintenance of normal blood glucose levels" is authorised. A formulation that suggests a reduction or an effect in diabetes is not a permitted variation but a different claim — and, in the second case, a disease reference, which is prohibited for foods.
Why is the claim authorised if EFSA saw no benefit for healthy people in 2014? Because these are two separate procedures with different questions. The 2012 authorisation rests on the claim assessment of 2010; the 2014 reference value assessment had to clarify whether a requirement could be derived. The list of authorised claims changes only when the European Commission changes it.
Does chromium help against cravings for sweets? There is no authorised claim for that. The body weight claim was assessed alongside the others in 2010 and is not on the list; corresponding advertising promises are therefore unsupported.
How much chromium has to be in a product before the sentence may be used at all? At least 15 % of the nutrient reference value per daily portion, so 6 µg. That is a low threshold — the claim therefore says nothing about whether a product contains much or little chromium.
Sources: Regulation (EC) No 1924/2006 on nutrition and health claims (Art. 13, condition "source of"); Regulation (EU) No 432/2012 establishing the list of permitted health claims (official wording of the two chromium claims); Regulation (EU) No 1169/2011, Art. 7(3) (prohibition of disease-related claims) and Annex XIII (nutrient reference value for chromium: 40 µg); EFSA NDA Panel, Scientific Opinion on the substantiation of health claims related to chromium … EFSA Journal 2010;8(10):1732 (ID 260, 401, 4665-4667, 262, 339, 261); EFSA NDA Panel, Scientific Opinion on Dietary Reference Values for chromium, EFSA Journal 2014;12(10):3845 (no AR, no PRI, no AI; "no evidence of beneficial effects associated with chromium intake in healthy subjects"; the cross-over study Anderson et al. 1991 with 200 µg chromium chloride over four weeks is reported there); EFSA ANS Panel, EFSA Journal 2010;8(12):1882 (250 µg/day as a guidance value for additional intake); German Nutrition Society (DGE), reference values for nutrient intake, chromium (estimated value 30-100 µg per day); German Federal Institute for Risk Assessment, proposed maximum levels for chromium in foods including food supplements (2021): 60 µg per recommended daily portion; composition and recommended use according to the label of the product mentioned.
