Form Comparison

Chromium Picolinate vs Chromium Polynicotinate

How chromium picolinate and chromium polynicotinate differ in elemental content, absorption, tolerance, and cost.

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Quick verdict. Picolinate is the most studied form, with better absorption than chloride and a large but inconsistent glucose trial record. Polynicotinate (niacin-bound chromium) also absorbs poorly, has little comparative human data, and its niacin is too small to cause flushing. Choose picolinate for the evidence, and polynicotinate only if you have a specific reason to avoid picolinate.

Side by Side

Chromium Picolinate Chromium Polynicotinate
Elemental content 12.4% elemental chromium Varies by product
Absorption Low Low
How it is absorbed Chromium absorption is low for all forms, roughly 0.4-2.5%. Picolinate is absorbed somewhat better than chromium chloride. Chromium bound to niacin. Absorption is low like other chromium forms; comparative human data are limited.
Typical dose 200-1,000 mcg daily in glucose trials 200-600 mcg daily
Common uses blood glucose support (mixed evidence) blood glucose support
Side effects Rare case reports of kidney and liver injury at high doses. Generally well tolerated.
Cost Low Moderate
Also called Chromax chromium nicotinate, ChromeMate
Labels in index 325 85

When to Choose Chromium Picolinate

Choose chromium picolinate when you want the most studied form. The most studied form. Trial results for glycemic control are inconsistent.

Chromium Picolinate

The form in nearly all of the positive trials, which are few and dated. Not a substitute for diabetes treatment.

What to look for: 200 mcg or less. Tell the prescriber if you use insulin or a sulfonylurea.

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When to Choose Chromium Polynicotinate

Choose chromium polynicotinate when you prefer a non-picolinate form. Niacin-bound and marketed as niacin-bound chromium; the niacin amount is too small to cause flushing.

Chromium Polynicotinate

Avoids the picolinate ligand, with even less efficacy data.

What to look for: No evidence-based reason to choose it over picolinate; the same dose ceiling applies.

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Products on Titrate

In Titrate's index of NIH label data, 325 labels named as chromium products list chromium picolinate and 85 list chromium polynicotinate.

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Chromium does not have its own search category yet. Each product above links to its full label in the NIH database.

Related

References

NIH Office of Dietary Supplements. Chromium: Fact Sheet for Health Professionals.

Stearns DM, et al. Chromium(III) picolinate produces chromosome damage in Chinese hamster ovary cells. FASEB J. 1995;9(15):1643-1648.

Anderson RA, et al. Elevated intakes of supplemental chromium improve glucose and insulin variables in individuals with type 2 diabetes. Diabetes. 1997;46(11):1786-1791.

Althuis MD, et al. Glucose and insulin responses to dietary chromium supplements: a meta-analysis. Am J Clin Nutr. 2002;76(1):148-155.

Trumbo PR, Ellwood KC. Chromium picolinate intake and risk of type 2 diabetes: an evidence-based review by the United States Food and Drug Administration. Nutr Rev. 2006;64(8 Pt 1):357-363.

EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on Dietary Reference Values for chromium. EFSA J. 2014;12(10):3845.

Costello RB, et al. Chromium supplements for glycemic control in type 2 diabetes: limited evidence of effectiveness. Nutr Rev. 2016;74(7):455-468.