Blood glucose levels after a meal don’t move at random. Chromium is one of the trace elements whose part in that process the European Union has reviewed scientifically and authorized in a wording of its own.
Open the Full PictureAfter a meal, blood glucose concentration rises at first, then settles back to a usual level over the following hours. This process has been the subject of nutrition research for decades, research that has also looked at trace elements such as chromium.
The next two sections look at how this research got started historically and at the route by which chromium actually enters the body — background to the claim, which appears in full wording at the end of this section.
In the late 1950s, researchers noticed that rats fed a chromium-poor diet over an extended period cleared glucose from the blood more slowly after a test dose than animals on an ordinary diet. An extract of brewer’s yeast closed that gap in further trials, which set off a search for the component responsible. The research group around Klaus Schwarz and Walter Mertz first called that component the “Glucose Tolerance Factor” — a name from a time when its exact chemical makeup was still unclear. Later work identified trivalent chromium as the main building block of that factor.
Of the chromium taken in through food, only a small share actually reaches the blood — published estimates range from under one to close to two percent of the amount consumed. In blood plasma, chromium travels mostly bound to transferrin, the same carrier protein that also moves iron through the body. At very high amounts of either element, this can measurably affect how much binding capacity is left for the other. A small part of the chromium absorbed is stored in the liver, kidney, and bone tissue; the greater share leaves the body through the kidneys in urine.
For chromium, the European Union has authorized the following claim on this subject: “Chromium contributes to the maintenance of normal blood glucose levels.” EU-authorized wording · Regulation (EU) No 432/2012.
The wording describes a process that runs its normal physiological course when chromium intake is adequate — not any effect beyond that.
“Chromium contributes to the maintenance of normal blood glucose levels.” EU-authorized wording · Regulation (EU) No 432/2012.
The claim refers only to chromium and to the process named — not to any amount above ordinary needs, and not to any other trace element.
40 µg, set out in Annex XIII of Regulation (EU) No 1169/2011 — a figure used for food labeling, not a personal intake recommendation.
Broccoli, potatoes, green beans, whole-grain bread, lean beef, and brewer’s yeast are among the known sources — the amount varies with soil and growing methods.
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This page brings together scientifically grounded background on chromium for readers who want to learn more. It isn’t meant as individual nutrition counseling and doesn’t replace a personal assessment by a doctor or a qualified registered dietitian. A pack that young children can get hold of is a pack stored in the wrong spot. Dietary supplements should only be taken in the daily amount printed on that pack. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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