Home Ingredients Hytolive® (Olive Fruit Polyphenols / Hydroxytyrosol)
CardiovascularAntioxidantAnti-Inflammatory

Hytolive® (Olive Fruit Polyphenols / Hydroxytyrosol)

Olea europaea
Evidence Level
Strong
1 Clinical Trial
3 Documented Benefits
4/5 Evidence Score

Hytolive® (PLT Health Solutions) is a natural olive (Olea europaea) fruit polyphenol extract standardized for hydroxytyrosol, a polyphenol found in olive oil. Hydroxytyrosol carries an EU-authorized health claim for helping protect blood lipids (LDL) from oxidative stress at 5 mg or more per day. The measured human evidence is for antioxidant and LDL-oxidation biomarkers, not for reductions in heart attacks or strokes. Hytolive® provides this olive oil benefit in a stable, concentrated supplement form without the calories of olive oil.

Studied Dose 5-20 mg/day hydroxytyrosol (as Hytolive). EU health claim: ≥5 mg/day. Cardiovascular studies: 10-30 mg/day.
Active Compound Hydroxytyrosol and olive polyphenols (oleuropein, tyrosol, oleocanthal derivatives); standardized Olea europaea fruit extract.

Benefits

LDL oxidation protection (EU-authorized health claim)

Hydroxytyrosol from olive oil has an EU-authorized health claim (EC No 432/2012) stating that 'olive oil polyphenols contribute to the protection of blood lipids from oxidative stress' at doses of ≥5 mg/day hydroxytyrosol. This EFSA-authorized claim reflects consistent human evidence that olive polyphenols protect blood lipids from oxidative stress. It applies to that specific antioxidant effect and does not extend to preventing cardiovascular events.

Supported by Trial 1

Cardiovascular biomarkers and antioxidant support

Olive polyphenols act on several cardiovascular-related pathways studied in humans: they lower oxidized-LDL and other oxidative-stress markers, and laboratory work shows COX-1/2 inhibition by oleocanthal. Effects on blood pressure are inconsistent: a randomized trial of a standardized olive extract (25 mg/day hydroxytyrosol) found systolic pressure fell about equally in the supplement and placebo groups, with no significant between-group difference. These trials measured biomarkers, not heart attacks, strokes or death, so a reduction in cardiovascular events has not been directly demonstrated for isolated olive polyphenol supplements.

Supported by Trial 1

Antioxidant activity

Hydroxytyrosol is a catechol polyphenol with strong free-radical-scavenging activity in laboratory tests. (ORAC, a test-tube antioxidant score, is not used here because the USDA withdrew its ORAC database in 2012 after concluding the values do not predict antioxidant effects in the body.) In people, 15 mg/day of hydroxytyrosol for 16 weeks lowered oxidized-LDL and other oxidative-stress markers and raised total antioxidant status. These are blood biomarkers of oxidative stress, not measured reductions in any disease.

Supported by Trial 1

Mechanism of action

1

Hydroxytyrosol catechol group free radical scavenging and eNOS activation

The catechol (ortho-dihydroxybenzene) moiety of hydroxytyrosol provides exceptional electron-donating capacity for free radical neutralization through hydrogen atom transfer and single electron transfer mechanisms. Simultaneously, hydroxytyrosol activates the Nrf2/are pathway, upregulating endogenous antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase) for amplified cellular antioxidant protection. The combined direct scavenging and Nrf2 induction explains hydroxytyrosol's superior antioxidant activity relative to structurally simpler polyphenols.

Clinical trials

1
Hydroxytyrosol and oxidized-LDL / antioxidant markers (RCT)
PubMed

Randomized, double-blind, placebo-controlled trial (Moratilla-Rivera 2025). Adults with overweight and prediabetes took 15 mg/day hydroxytyrosol or placebo for 16 weeks. The EFSA-authorized Article 13.5 claim ('olive oil polyphenols contribute to the protection of blood lipids from oxidative stress') applies at 5 mg/day or more of hydroxytyrosol and its derivatives.

49 adults with overweight and prediabetes, aged 40 to 70.

Compared with placebo, hydroxytyrosol significantly reduced oxidized-LDL, protein carbonyls and 8-OHdG, preserved total antioxidant status and GPx activity, and lowered IL-6. There was no change in lipid profile or anthropometric measures. These are oxidative-stress and inflammation biomarkers, not measured cardiovascular events; broader outcomes such as heart attacks, strokes or mortality were not assessed and are inferred elsewhere only from whole-diet Mediterranean studies.

Side effects and drug interactions

Common Potential side effects

Excellent safety profile; olive polyphenols are normal dietary components
Mild GI effects at high doses — take with food
Olive allergy (very rare) — discontinue if reaction

Important Drug interactions

Antihypertensive medications — additive blood pressure lowering at higher doses; monitor
Antiplatelet/anticoagulants — mild antiplatelet activity; monitor if on blood thinners
No significant pharmacokinetic drug interactions at standard doses

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Frequently asked questions about Hytolive® (Olive Fruit Polyphenols / Hydroxytyrosol)

What is Hytolive?

Hytolive® (PLT Health Solutions) is a natural olive (Olea europaea) fruit polyphenol extract standardized for hydroxytyrosol, a polyphenol found in olive oil. Hydroxytyrosol carries an EU-authorized health claim for helping protect blood lipids (LDL) from oxidative stress at 5 mg or more per day.

What is Hytolive used for?

Hytolive is researched primarily for Cardiovascular, Antioxidant, and Anti-Inflammatory. Hydroxytyrosol from olive oil has an EU-authorized health claim (EC No 432/2012) stating that 'olive oil polyphenols contribute to the protection of blood lipids from oxidative stress' at doses of ≥5 mg/day hydroxytyrosol.

What is the recommended dosage of Hytolive?

The clinically studied dose is 5-20 mg/day hydroxytyrosol (as Hytolive). EU health claim: ≥5 mg/day. Cardiovascular studies: 10-30 mg/day. Always follow the product label and check with a healthcare provider for personal advice.

Is Hytolive safe, and does it have side effects?

For most healthy adults, Hytolive is well tolerated at studied doses. Reported effects can include: Excellent safety profile; olive polyphenols are normal dietary components Mild GI effects at high doses — take with food It may also interact with some medications. Hytolive is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Hytolive interact with any medications?

Possible interactions include: Antihypertensive medications — additive blood pressure lowering at higher doses; monitor Antiplatelet/anticoagulants — mild antiplatelet activity; monitor if on blood thinners If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Hytolive?

NutraSmarts rates the evidence for Hytolive as Strong (4 out of 5). It is backed by 1 clinical trial and 4 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(4 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Moratilla-Rivera I, Perez-Jimenez J, Ramos S, Portillo MP, Martin MA, Mateos R Hydroxytyrosol supplementation improves antioxidant and anti-inflammatory status in individuals with overweight and prediabetes: A randomized, double-blind, placebo-controlled parallel trial. Clinical Nutrition. 2025;52:17-26. doi: 10.1016/j.clnu.2025.07.006.PubMedUsed to support: Hydroxytyrosol-specific RCT (15 mg/day) most relevant to Hytolive, reporting reduced oxidized LDL and improved antioxidant/anti-inflammatory biomarkers. Honest limit: outcomes are biomarkers (oxLDL, antioxidant status), not clinical cardiovascular events, with no change in lipid profile; trial is modest in size.
  2. Castaner O, Fito M, Lopez-Sabater MC, Poulsen HE, Nyyssonen K, Schroder H, Salonen JT, De la Torre-Carbot K, et al. The effect of olive oil polyphenols on antibodies against oxidized LDL. A randomized clinical trial. Clinical Nutrition. 2011;30(4):490-3. doi: 10.1016/j.clnu.2011.01.013.PubMedUsed to support: Randomized trial supporting the EFSA-authorized concept that olive-oil polyphenols protect LDL from oxidative damage (here, effects on antibodies against oxidized LDL). Honest limit: this is an antioxidant/LDL-oxidation biomarker effect, not proven reduction of heart attacks or strokes; small sample.
  3. Boronat A, Mateus J, Soldevila-Domenech N, Guerra M, Rodriguez-Morato J, Varon C, Munoz D, Barbosa F, Morales JC, Gaedigk A, et al. Cardiovascular benefits of tyrosol and its endogenous conversion into hydroxytyrosol in humans. A randomized, controlled trial. Free Radical Biology & Medicine. 2019;143:471-481. doi: 10.1016/j.freeradbiomed.2019.08.032.PubMedUsed to support: Randomized controlled trial supporting hydroxytyrosol-related cardiovascular/antioxidant effects in humans, including endogenous conversion of tyrosol to hydroxytyrosol and effects on HDL and inflammatory/vasodilatory markers. Honest limit: small trial focused on surrogate markers rather than clinical endpoints.
  4. Lauwers S, Breynaert A, Verlaet A, Fransen E, Bringmans T, Roth L, Tuenter E, Bosmans J, Hermans N. Evaluation of the effect of olive extracts on blood pressure and cardiovascular health markers in adults: Findings from a double-blind, placebo-controlled, randomised trial. PLoS One. 2026;21(3):e0344278. doi: 10.1371/journal.pone.0344278.PubMedUsed to support: Randomized, double-blind, placebo-controlled trial in 56 adults with elevated systolic blood pressure taking a standardized olive extract (about 25 mg/day hydroxytyrosol plus oleuropein) for 8 weeks. Systolic blood pressure fell in both groups with no significant difference between the olive extract and placebo, and total cholesterol and LDL changes also did not differ from placebo. Blood-pressure lowering is not reliably demonstrated for olive polyphenol supplements. Part-funded by an olive-polyphenol supplier.