Effect of dairy fat on plasma phytanic acid in healthy volunteers - a randomized controlled study

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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BACKGROUND: Phytanic acid produced in ruminants from chlorophyll may have preventive effects on the metabolic syndrome, partly due to its reported RXR and PPAR- α agonist activity. Milk from cows fed increased levels of green plant material, contains increased phytanic acid concentrations, but it is unknown to what extent minor increases in phytanic acid content in dairy fat leads to higher circulating levels of phytanic acid in plasma of the consumers. OBJECTIVE: To investigate if cow feeding regimes affects concentration of plasma phytanic acid and risk markers of the metabolic syndrome in human. DESIGN: In a double-blind, randomized, 4 wk, parallel intervention study 14 healthy young subjects were given 45 g milk fat/d from test butter and cheese with 0.24 wt% phytanic acid or a control diet with 0.13 wt% phytanic acid. Difference in phytanic acid was obtained by feeding roughage with low or high content of chlorophyll. RESULTS: There tended to be a difference in plasma phytanic acid (P = 0.0730) concentration after the dietary intervention. Plasma phytanic acid increased significantly within both groups with the highest increase in control group (24%) compared to phytanic acid group (15%). There were no significant effects of phytanic acid on risk markers for the metabolic syndrome. CONCLUSIONS: The results indicate that increased intake of dairy fat modify the plasma phytanic acid concentration, regardless of cows feeding regime and the minor difference in dietary phytanic acid. Whether the phytanic acid has potential to affects the risk markers of the metabolic syndrome in human still remain to be elucidated.
Original languageEnglish
JournalLipids in Health and Disease
Publication date2011
Volume10
Journal number1
Pages95
ISSN1476-511X
DOIs
StatePublished

Bibliographical note

License: http://creativecommons.org/licenses/by/2.0/

CitationsWeb of Science® Times Cited: 3

Keywords

  • Total cholesterol, Cow-feeding regime, HDL cholesterol, LDL cholesterol, Glucose, Absorption, Fatty acid, Insulin, Phytanic acid, C-reactive protein
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