Is olive oil good for you? A systematic review and meta-analysis on anti-inflammatory benefits from regular dietary intake

Sep 21, 2019Nutrition (Burbank, Los Angeles County, Calif.)

Health benefits of regular olive oil intake on reducing inflammation: A review and combined analysis

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Circadian Biology on OpenScience ↗PubMed ↗DOI ↗

Abstract

Regular intake of olive oil is associated with reduced levels of inflammation markers.

Evidence from randomized controlled trials indicates that olive oil may lower C-reactive protein levels.
Olive oil consumption is linked to decreased interleukin-6 levels.
Tumor necrosis factor-α may also be reduced through regular dietary intake of olive oil.
Further research is needed to clarify olive oil's effects on inflammation compared to other fats.
Factors such as daily dosage and duration of intake should be considered in future studies.

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The prevalence of non-communicable diseases is rapidly increasing, and evidence shows that diet and lifestyle are key areas of intervention to decrease their burden. Olive oil is considered one of the key nutritional components responsible for the benefits of the Mediterranean diet, which is characterized by the use of olive oil in meals as the main source of fat; a high consumption of water, fruits, nuts, vegetables, legumes, whole grains, spices, and herbs; a moderate consumption of dairy products (mainly cheese and yogurt), fish, poultry, and red wine; and a reduced consumption of red meat and processed foods. The aim of this review was to summarize evidence from randomized controlled trials on the effect of regular dietary intake of olive oil on three inflammatory markers: C-reactive protein, interleukin-6, and tumor necrosis factor-α. Reviewed RCTs reveal beneficial effects of olive oil by reducing levels of inflammation markers. Olive oil taken on a regular basis can be a good dietary fat alternative, especially to manage IL-6. However, further research is required to clarify the effects of olive oil consumption on inflammation, comparing to other fats. Moreover, olive oil daily dosage, different time-lenght intervention and follow-up periods should be taken into consideration.

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Is olive oil good for you? A systematic review and meta-analysis on anti-inflammatory benefits from regular dietary intake

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