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The latest news from the OHIS
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Dear Colleagues and Friends,
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Randomized controlled trial
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Olive oil consumption has been suggested to have a favourable impact on children's health. This observational study aimed to investigate the association between olive oil consumption and metabolic indices (obesity and cardiovascular fitness) and lifestyle factors (dietary habits, sleep, and screen time). Population data was derived from a health survey on a sample of 177,091 children aged 8–17 years old in Greece. This study showed that an exclusive use of olive oil among schoolchildren was inversely associated with obesity (total and central) and favourably associated with cardiorespiratory fitness. In addition, olive oil intake was strongly associated with a healthy lifestyle profile. Authors explain that the exclusive consumption of olive oil as part of a balanced Mediterranean dietary pattern does seem to provide favourable health benefits and should be further promoted. In the same way, a very recent observational study (cross-sectional study) conducted in 1,491 older adults (≥ 65 years old) observed how the Mediterranean dietary pattern (which includes olive oil consumption as the main fat) has been related to longevity and can support physical function in older adults. More specifically, the authors of this study observed that non-adherence to a Mediterranean Dietary Pattern was associated with both lower values ​​of handgrip strength and longer sitting time.
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Regarding experimental studies on animals models, we highlight a study that investigated the effects of fish oil and olive oil on the process of atherosclerosis. The Mediterranean diet has been associated with decreased cardiovascular morbidity and mortality and both fish and olive oil are key components of this diet. Therefore, they compared their effects on non-alcoholic fatty liver disease and atherogenesis in a mouse model by administering a high fat diet, high fat+ fish oil diet and high fat+ olive oil diet. The additions of both fish and olive oil significantly decreased plasma cholesterol elevation compared to the high fat diet. Fish oil reduced liver steatosis and inflammation while olive oil reduced steatosis alone. Lastly, only the addition of fish oil significantly reduced atherosclerotic lesion area by 51% compared to the high fat group.
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Thanks!
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