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Increased Dairy Product Intake Alters Serum Metabolite Profiles in Subjects at Risk of Developing Type 2 Diabetes

Sarah O'Connor, Karine Greffard, Mickael Leclercq, Pierre Julien, Stanley John Weisnagel, Claudia Gagnon, Arnaud Droit, Jean-François Bilodeau, Iwona Rudkowska

Mol Nutr Food Res. 2019 Oct;63(19):e1900126.

PMID: 31368661

Abstract:

Scope:
Metabolomics is increasingly used to identify biomarkers of diet or chronic diseases, such as type 2 diabetes. Yet, metabolite signatures following dairy intake in hyperinsulinemic subjects have not been identified. The objective is to evaluate the effects of a high dairy diet (HD) for 6 weeks (4 servings or more per day), compared with an adequate dairy diet (AD) (2 servings or less per day), on serum metabolite profiles in hyperinsulinemic adults.
Methods and results:
In this crossover trial, subjects are randomized to HD or AD for 6 weeks. Serum metabolites are assessed using GC/MS. Twenty-six subjects completed the study. Levels of pentadecanoic acid, tyrosine and lathosterol are increased in HD, while 1,5-anhydrosorbitol, myo-inositol, 3-aminoisobutyric acid and beta-sitosterol are decreased (p < 0.05). Sorbitol levels are increased after AD, while hexanoic acid, lauric acid, l-kynurenine, methionine, and benzoic acid levels are reduced (p < 0.05). Histidine, caprylic acid, nonanoic acid, decanoic acid, lauric acid, heptadecanoic acid, and benzoic acid levels are increased in HD compared to AD, while malic acid levels are increased in AD compared with HD (p < 0.05).
Conclusion:
Higher dairy products intake modifies metabolite profiles in hyperinsulinemic subjects.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP88235250 6-(7-Nitrobenzofurazan-4-ylamino)hexanoic acid 6-(7-Nitrobenzofurazan-4-ylamino)hexanoic acid 88235-25-0 Price
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