Description Chromium is an essential trace mineral.
Function/ Used for Chromium is involved in the processes that make glucose available for energy.

It is also important for the metabolism of amino acids (the ‘building blocks’ of proteins) and fats.

Intake Recommended intake

EU NRV: 40μg (micrograms)1


UK average daily intake

In the UK, the average daily intake of chromium from food was 100μg/day (1997 Total Diet Study).3

As a supplement Available as a single supplement. Also commonly available as part of a multivitamin and mineral formula.

Different multivitamin and minerals products will vary in the percentage NRVs they include. People should always check the label for information about a specific product.

Found in (dietary sources) Good sources include liver, kidney, yeast products, wholegrain cereal, nuts and legumes.
Deficiency Gross chromium deficiency is rarely seen in humans, but signs and symptoms of marginal deficiency include:

Glucose intolerance (insulin resistant hyperglycaemia – high sugar levels in the blood, raised serum lipids and weight loss)2.

Precautions and contraindications Because of its effect on blood glucose levels, diabetics should only take chromium under medical supervision.
Not suitable for epileptics.Safe Upper Level: 10mg1
Use in pregnancy and breastfeeding There is no evidence of adverse effects in pregnancy at normal intakes.
Interactions e.g. with other medications Chromium supplements containing yeast should be avoided by people taking monoamine oxidase inhibitors for the treatment of depression.

People taking any medication for diabetes (either injected insulin or oral antidiabetics) should seek medical advice before taking chromium.
Absorption of beta-blockers and corticosteroids may be increased by chromium; people using these drugs should seek medical advice before taking chromium supplements.2

Adverse effects None known when taken orally.
References 1 Expert Group on Vitamins and Minerals, 2003.

2 Mason, P. Dietary Supplements. Pharmaceutical Press,  London, 2001

3. Manual of Nutrition 12th Ed. Dept. of Health, June 2012.