Bump.
Lavere lipolys og fettoksidering (m.a.o "fettforbrenning") etter bare en uke med mye fruktose i kostholdet:
"The effects of a 7 d high-fructose diet (HFrD) or control diet on lipid metabolism were studied in a group of six healthy lean males. Plasma NEFA and beta-hydroxybutyrate concentrations, net lipid oxidation (indirect calorimetry) and exogenous lipid oxidation (13CO2 production) were monitored in basal conditions, after lipid loading (olive oil labelled with [13C]triolein) and during a standardised mental stress. Lactate clearance and the metabolic effects of an exogenous lactate infusion were also monitored. The HFrD lowered plasma concentrations of NEFA and beta-hydroxybutyrate as well as lipid oxidation in both basal and after lipid-loading conditions. In addition, the HFrD blunted the increase in plasma NEFA and exogenous lipid oxidation during mental stress. The HFrD also increased basal lactate concentrations by 31.8 %, and lactate production by 53.8 %, while lactate clearance remained unchanged. Lactate infusion lowered plasma NEFA with the control diet, and net lipid oxidation with both the HFrD and control diet. These results indicate that a 7 d HFrD markedly inhibits lipolysis and lipid oxidation. The HFrD also increases lactate production, and the ensuing increased lactate utilisation may contribute to suppress lipid oxidation."
Br J Nutr. 2008 Jan 21;:1-7
Merk at det er snakk om fruktose, og ikke frukt. Menneskekroppen er tilpasset de små mengdene man får fra frukt og grønt, men ikke de store mengdene man først og fremst får fra vanlig hvitt sukker (som er til halvparten fruktose). Man må spise kilovis med frukt og grønt før man får i seg samme mengder fruktose som man får fra en liten pose med godteri...
