Trial reportThe journal of nutrition, health & aging2015
Twelve-month consumption of a polyphenol extract from olive (Olea europaea) in a double blind, randomized trial increases serum total osteocalcin levels and improves serum lipid profiles in postmenopausal women with osteopenia.
Trial report in The journal of nutrition, health & aging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
46 citing papers in PubMed, 3 syntheses or guidelines pooled it, 92 citations in OpenAlex.
- Meta-analysis of the synergistic effect of traditional Chinese medicine compounds combined with conventional Western medicine in the treatment of osteoporosis.Frontiers in endocrinology · 2025Pooled it
- The effect of non-pharmacological interventions on bone health among patients with low bone mass: a systematic review and meta-analysis.Frontiers in endocrinology · 2025Pooled it
- Pooled it
- Polyphenols increase circulating lipids but improve LDL particle quality and reduce LDL oxidation in postmenopausal women: metabotype- and age-dependent effects in a randomised, placebo-controlled crossover trial.European journal of nutrition · 2026Trial
- Trial
- Trial
- The effect of olive leaf extract on cardiovascular health markers: a randomized placebo-controlled clinical trial.European journal of nutrition · 2021Trial
- Indirect Chronic Effects of an Oleuropein-Rich Olive Leaf Extract on Sucrase-Isomaltase In Vitro and In Vivo.Nutrients · 2019Trial
- Nutritional implications of olives and sugar: attenuation of post-prandial glucose spikes in healthy volunteers by inhibition of sucrose hydrolysis and glucose transport by oleuropein.European journal of nutrition · 2019Trial
- The Effect of Olive Leaf Extract on Upper Respiratory Illness in High School Athletes: A Randomised Control Trial.Nutrients · 2019Trial
- Impact of phenolic-rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial.European journal of nutrition · 2017Trial
- Hydroxytyrosol supplementation increases vitamin C levels in vivo. A human volunteer trial.Redox biology · 2017Trial
- Effects of Olive Leaf Extract on Anxiety Symptoms and Metainflammation in Women with Excess Weight: A Randomized Double-Blind Placebo-Controlled Pilot Trial.Life (Basel, Switzerland) · 2026Article
- Food and Medicine Homologous Plants in Osteoporosis: A Scoping Review of Preclinical Evidence.Food science & nutrition · 2026Review
- Optimizing Omega-3 Polyunsaturated Fatty Acids for Healthy Ageing: Human Intake Evidence and Dairy Cow Dietary Interventions for Milk Enrichment.Foods (Basel, Switzerland) · 2026Review
- Cow's Milk Positively Impacts Bone Formation by Regulating the Osteocalcin Pathway Compared to Transgenic and Non-Transgenic Soy-Based Beverages in BALB/c Mice.Molecular nutrition & food research · 2026Article
- Polyphenol-Microbiota Interactions in Atherosclerosis: The Role of Hydroxytyrosol and Tyrosol in Modulating Inflammation and Oxidative Stress.Nutrients · 2025Review
- The Role of Olive Oil Polyphenols in Osteosarcopenic Obesity-Related Biological Domains: A Systematic Review of Current Evidence.Foods (Basel, Switzerland) · 2025Review
- Utilizing a Combination of Supplements Comprising Boric Acid, Magnesium, Vitamin D3, and Extra Virgin Olive Oil to Improve Metabolism in Menopausal Ovariectomized Rats.Biological trace element research · 2025Article
- Pretreatment with oleuropein protects the neonatal brain from hypoxia-ischemia by inhibiting apoptosis and neuroinflammation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesOsteoporosis is a skeletal disorder characterized by impaired bone turnover and compromised bone strength, thereby predisposing to increased risk of fracture. Preclinical research has shown that compounds produced by the olive tree (Olea europaea), may protect from bone loss, by increasing osteoblast activity at the expense of adipocyte formation. The aim of this exploratory study was to obtain a first insight on the effect of intake of an olive extract on bone turnover in postmenopausal women with decreased bone mass (osteopenia). DESIGN AND
settingFor that, a double blind, placebo-controlled study was performed in which participants were randomly allocated to either treatment or placebo groups.
participants64 osteopenic patients, with a mean bone mineral density (BMD) T-score between -1.5 and -2.5 in the lumbar spine (L2-L4) were included in the study. INTERVENTION AND MEASUREMENTS: PARTICIPANTS received for 12 months daily either 250 mg/day of olive extract and 1000 mg Ca (treatment) or 1000 mg Ca alone (placebo). Primary endpoints consisted of evaluation of bone turnover markers. Secondary endpoints included BMD measurements and blood lipid profiles.
resultsAfter 12 months, the levels of the pro-osteoblastic marker osteocalcin were found to significantly increase in the treatment group as compared to placebo. Simultaneously, BMD decreased in the placebo group, while remaining stable in the treatment group. In addition, improved lipid profiles were observed, with significant decrease in total- and LDL-cholesterol in the treatment group.
conclusionThis exploratory study supports preclinical observations and warrants further research by showing that a specific olive polyphenol extract (Bonolive®) affects serum osteocalcin levels and may stabilize lumbar spine BMD. Moreover, the improved blood lipid profiles suggest additional health benefits associated to the intake of the olive polyphenol extract.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.