Effects of dietary cold-pressed turnip rapeseed oil and butter on serum lipids, oxidized LDL and arterial elasticity in men with metabolic syndrome

Abstract

BackgroundRapeseed oil is the principal dietary source of monounsaturated and n-3 polyunsaturated fatty acids in the Northern Europe. However, the effect of rapeseed oil on the markers of subclinical atherosclerosis is not known. The purpose of this study was to compare the effects of dietary intake of cold-pressed turnip rapeseed oil (CPTRO) and butter on serum lipids, oxidized LDL and arterial elasticity in men with metabolic syndrome.MethodsThirty-seven men with metabolic syndrome completed an open and balanced crossover study. Treatment periods lasted for 6 to 8 weeks and they were separated from each other with an eight-week washout period. Subjects maintained their normal dietary habits and physical activity without major variations. The daily fat adjunct consisted either of 37.5 grams of butter or 35 mL of VirginoR CPTRO. Participants were asked to spread butter on bread on the butter period and to drink CPTRO on the oil period. The fat adjunct was used as such without heating or frying.ResultsCompared to butter, administration of CPTRO was followed by a reduction of total cholesterol by 8% (p < 0.001) and LDL cholesterol by 11% (p < 0.001). The level of oxidized LDL was 16% lower after oil period (p = 0.024). Minimal differences in arterial elasticity were not statistically significant.ConclusionCold-pressed turnip rapeseed oil had favourable effects on circulating LDL cholesterol and oxidized LDL, which may be important in the management of patients at high cardiovascular risk.Trial registrationClinicalTrial.gov NCT01119690

Evidence of health benefits of canola oil

“…Five of the seven studies examined the effects of margarines or mayonnaises made with canola oil on TC levels and all showed a lowering of TC levels, in a range from 3.3% to 21.7%, compared with a high‐SFA‐treated group. Palomäki et al . and Valsta et al .…”

“…Seven studies compared canola oil‐based diets with those high in SFAs . The high‐SFA diets in these studies contained >12% of energy from SFAs and >30% of energy from total fat, mainly in the form of butter, margarine, mayonnaise, and other high‐SFA foods.…”

“…The high‐SFA diets in these studies contained >12% of energy from SFAs and >30% of energy from total fat, mainly in the form of butter, margarine, mayonnaise, and other high‐SFA foods. Five of the seven studies examined the effects of margarines or mayonnaises made with canola oil on TC levels and all showed a lowering of TC levels, in a range from 3.3% to 21.7%, compared with a high‐SFA‐treated group. Palomäki et al .…”

“…Several studies were designed to specifically compare canola oil‐based diets with high‐SFA diets . These studies all showed significant reductions in LDL‐C levels after canola oil‐based diets were consumed, with an average reduction of 16.2% (range, 10–29.4%).…”

Evaluation of bad habits as risk factors for cardiovascular diseases in Sarajevo Canton

“…It is assumed that physical activity has a positive effect on reducing the risks of changing factors like blood pressure, serum lipid profile, glucose tolerance and obesity. It is believed that the best result among those with higher energy consumption of 2000 calories per week of physical activity, which represents about 1 hour of daily exercise (14). The results of our study showed that the highest percentage (38.4%) patients a day to walk 15-30 minutes, 24.2% of respondents could not walk, and the lowest percentage (4.5%) patients a day hike of more than one hour.…”