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J Am Acad Dermatol. 2007 Aug;57(2):247-56. Epub 2007 Apr 19.

The effect of a high-protein, low glycemic-load diet versus a conventional, high glycemic-load diet on biochemical parameters associated with acne vulgaris: a randomized, investigator-masked, controlled trial.

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  • 1School of Applied Sciences, RMIT University, Melbourne, Victoria, Australia.

Abstract

BACKGROUND:

No previous study has sought to examine the influence of dietary composition on acne vulgaris.

OBJECTIVE:

We sought to compare the effect of an experimental low glycemic-load diet with a conventional high glycemic-load diet on clinical and endocrine aspects of acne vulgaris.

METHODS:

A total of 43 male patients with acne completed a 12-week, parallel, dietary intervention study with investigator-masked dermatology assessments. Primary outcomes measures were changes in lesion counts, sex hormone binding globulin, free androgen index, insulin-like growth factor-I, and insulin-like growth factor binding proteins.

RESULTS:

At 12 weeks, total lesion counts had decreased more in the experimental group (-21.9 [95% confidence interval, -26.8 to -19.0]) compared with the control group (-13.8 [-19.1 to -8.5], P = .01). The experimental diet also reduced weight (P = .001), reduced the free androgen index (P = .04), and increased insulin-like growth factor binding protein-1 (P = .001) when compared with a high glycemic-load diet.

LIMITATIONS:

We could not preclude the role of weight loss in the overall treatment effect.

CONCLUSION:

This suggests nutrition-related lifestyle factors play a role in acne pathogenesis. However, these preliminary findings should be confirmed by similar studies.

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PMID:
17448569
[PubMed - indexed for MEDLINE]
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