Olive Leaf — 20% Oleuropein Standardized Extract — 60 Vegetarian Capsules — Immune & Cardiometabolic Support*
LifeSource Vitamins Olive Leaf provides a standardized olive leaf extract (20% oleuropein) to support healthy immune defenses, vascular wellness, and antioxidant protection. Produced in FDA-registered, GMP-certified facilities and
3rd-party tested
for identity, purity & potency.*
Research Promise:
At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is based on human studies verified by the
National Institutes of Health (NIH), a world-leading health authority, plus insights from 39 clinically respected organizations and 20 globally renowned health-focused universities.*
Clinically Studied Benefits (with research)
• Supports healthy blood pressure* — Olive leaf extract lowered systolic/diastolic measures in adults with stage-1 hypertension. (NIH/PubMed — Susalit E, 2011)
• Improves vascular health & lipids* — Phenolic-rich OLE improved blood pressure and lipid profile. (NIH/PubMed — Lockyer S, 2016; NIH/PMC — Lockyer S, 2016)
• Promotes insulin sensitivity* — 12-week RCT improved insulin sensitivity and β-cell function in overweight men. (NIH/PubMed — de Bock M, 2013; NIH/PMC — de Bock M, 2013)
• Shortens sick-day duration* — Season-long OLE reduced illness duration in athletes. (NIH/PubMed — Somerville V, 2019; NIH/PMC — Somerville V, 2019)
• Cardiometabolic support* — Meta-analyses confirm OLE’s role in BP and lipid management. (NIH/PMC — Razmpoosh E, 2022)
• Blood pressure direction of effect* — Favorable changes shown in pooled RCTs. (NIH/PMC — Ismail MA, 2021)
• Antioxidant support* — OLE improved oxidative-stress markers in human studies. (NIH/PMC — Saibandith B, 2017)
• Cardiometabolic overview* — Controlled trials show positive direction for BP/lipids. (NIH/PMC — Lockyer S, 2016)
• Exercise-season wellness* — As above, reduced sick-day duration supports active adults. (NIH/PMC — Somerville V, 2019)
• Glucose-insulin dynamics* — Reinforces direction of effect for insulin sensitivity. (NIH/PMC — de Bock M, 2013)
Additional Studies Showing Promising Benefits*
• Lipid outcomes* — 8-week trial reported mixed lipid effects, showing importance of standardization. (NIH/PMC — Stevens Y, 2020)
• Metabolic syndrome overview* — Reviews connect olive phenolics with cardiometabolic balance. (NIH/PMC — Saibandith B, 2017)
• BP & lipids (meta-analysis)* — Confirms OLE’s supportive role in hypertension/dyslipidemia. (NIH/PMC — Razmpoosh E, 2022)
• Blood pressure pooling* — Systematic review supports favorable BP outcomes. (NIH/PMC — Ismail MA, 2021)
• Seasonal wellness in athletes* — Reduced sick-day duration supports immunity. (NIH/PMC — Somerville V, 2019)
• BP & lipid direction* — Confirmed hypotensive/lipid-lowering activity. (NIH/PMC — Lockyer S, 2016)
Global Evidence & Authoritative Reviews*
• Global monographs & reviews* — WHO, NCCIH, EFSA/EMA, USP/NSF, ABC, and other public sources confirm olive leaf’s safety and use in cardiometabolic and immune wellness.*
We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
• Supports healthy immune defenses*
• Helps maintain healthy blood pressure already in the normal range*
• Promotes antioxidant protection for cellular health*
• Vegan, non-GMO; made in FDA-registered, GMP-certified facilities*
• Allergy note: contains no soy, dairy, or gluten*
• 3rd-party lab tested for identity, potency & purity
Suggested Use
See product label for full instructions, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
• Serving Size — See Supplement Facts label
• Servings Per Container — See Supplement Facts label
• Form — Easy-to-swallow vegetarian capsules
• Free From — Non-GMO, gluten-free; no artificial colors, preservatives or synthetic chemicals*
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Olive Leaf — 20% Oleuropein Standardized Extract — supports immune defenses, vascular wellness, and antioxidant protection. 3rd-party tested quality. Clinically Studied Ingredients — NIH/PubMed!*
