What is the Latest? Chromium and Cardiovascular Prevention
The Question
Does chromium supplementation play a role in the prevention of cardiovascular disease?The Recommendation
Data from clinical trials is inconsistent regarding the effect of chromium supplements on improving cardiovascular disease (CVD) with no clinically significant effect on related risk factors (e.g. lipid profile). Additional research is required to make a recommendation on chromium supplementation and CVD risk reduction.
Country-specific Recommendations
Cardiovascular guidelines from Australia, Canada, Europe, the United Kingdom and the United States do not include specific recommendations in relation to chromium supplementation.
The Evidence
A 2021 systematic review and meta-analysis of RCTs showed chromium supplementation (42 to 1000 mg/day) in the elemental, picolinate or nicotinate forms for three weeks to two years (mean 12 weeks) may result in a nonclinically significant reduction in total cholesterol, but not on other lipid measures assessed (LDL-C, HDL-C, VLDL-C or triglycerides). Moreover, a total cholesterol-lowering effect of chromium supplementation may be synergistic when provided over shorter durations (<12 weeks), low dose (<200 mg/day), in younger adults (<54 years) and using the picolinate and elemental forms.
Grade of Evidence B
A 2020 narrative review suggested that following Dietary Recommended Intake levels of chromium may aid in reducing CVD risk; however, the evidence reported was inconsistent as it related to the serum lipid profile; findings were not associated with cardiovascular-related morbidity or mortality. Chromium picolinate supplementation was determined to be safe, specifically as it relates to kidney failure or DNA damage.
Grade of Evidence C
Epidemiological data on chromium exposure and CVD risk suggests lower levels of chromium may be associated with greater CVD-related risk in men. However, findings are inconsistent and cannot be extrapolated to women. Sources of chromium exposure are unknown.
Grade of Evidence C
To see the full practice question, including the Evidence Statements, Remarks, Comments and References, click here.