No effect on oxidative stress biomarkers by modified intakes of polyunsaturated fatty acids or vegetables and fruit

Riitta Freese, L. O Dragsted, S Loft, Marja Mutanen

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review


Diet may both increase and decrease oxidative stress in the body. We compared the effects of four strictly controlled isocaloric diets with different intakes of polyunsaturated fatty acids (PUFA, 11 or 3% of energy) and vegetables and fruit (total amount of vegetables and fruit 516 or 1059 g/10 MJ) on markers associated with oxidative stress in 77 healthy volunteers (19-52 years). Plasma protein carbonyls (2-aminoadipic semialdehyde residues) and whole- body DNA and nucleotide oxidation (urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine excretion) tended to decrease in all treatment groups with no differences between the diets. The diets did not differ in their effects on red blood cell antioxidative enzyme activities, either. The results suggest that in healthy volunteers with adequate nutrient intakes, 6-week diets differing markedly in the amount of PUFA or vegetables and fruit do not differ in their effects on markers associated with oxidative stress.
TidskriftEuropean Journal of Clinical Nutrition
Sidor (från-till)1151-1153
Antal sidor3
StatusPublicerad - 2008
MoE-publikationstypA1 Tidskriftsartikel-refererad


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