Olive leaf extract has become increasingly popular as a natural supplement, appreciated for its historical roots and potential health-supporting properties. Derived from the leaves of the Olea europaea plant—the same plant that gives us olives and olive oil—olive leaf extract contains beneficial compounds, notably oleuropein.
At Supp, we’re passionate about providing clear, trustworthy information, empowering you to make informed decisions about your health.
Here’s our quick guide to olive leaf extract, exploring its potential health benefits, recommended dosages, and any considerations you should be aware of.

What is Olive Leaf Extract?
Olive leaf extract is a supplement derived from olive tree leaves. It has a rich history in traditional medicine, especially in Mediterranean regions, where it’s been used to support overall wellness, immunity, and cardiovascular health. The key active ingredient in olive leaf extract is oleuropein, a powerful antioxidant believed to contribute significantly to its health-promoting properties.
Health Benefits of Olive Leaf Extract
Olive leaf extract’s popularity stems from its diverse potential health benefits. While research is ongoing, early studies and traditional use suggest several promising areas:
Immune System Support
Oleuropein, found abundantly in olive leaf extract, may contribute to the normal function of the immune system. Its antioxidant properties could help protect cells from oxidative stress, supporting general immune health and resilience.
Cardiovascular Health
Traditionally, olive leaf extract has been used to support cardiovascular function. Oleuropein is suggested to aid heart health by helping maintain normal blood pressure and promoting healthy blood circulation, both key factors for cardiovascular wellbeing.
Antioxidant Effects
Olive leaf extract is a rich source of antioxidants, which help protect your body’s cells from damage caused by free radicals. Antioxidants play a crucial role in maintaining overall health, potentially reducing oxidative stress and supporting healthy ageing.
Blood Sugar Management
Some early studies indicate that olive leaf extract may support balanced blood sugar levels, making it an area of interest for maintaining metabolic health. While encouraging, these findings require further research to fully understand their practical implications.
Potential Anti-Inflammatory Properties
Chronic inflammation is linked to numerous health issues. Some studies suggest that olive leaf extract, due to its oleuropein content, may have mild anti-inflammatory properties, supporting overall health and wellbeing.

Dosage and Recommendations
As with any supplement, getting the right dosage is key to maximising its potential benefits safely. Typical olive leaf extract supplements, including our own, contain a standardised amount of oleuropein.
Standard Recommended Dosage – Adults typically take 1-2 capsules daily, providing around 90mg of oleuropein per capsule. Always follow the specific instructions provided on your supplement’s packaging.
Consistency and Timing – For optimal absorption, take olive leaf extract with water and food. Consistency in daily supplementation is important to experience its potential health benefits fully.
Safety and Potential Risks
Olive leaf extract is generally considered safe for most adults when taken at recommended dosages. However, there are some precautions to consider:
- Medication Interactions– If you’re currently taking medications, especially for blood pressure, diabetes, or blood thinners, consult your healthcare practitioner before starting olive leaf extract.
- Pregnancy and Breastfeeding – Olive leaf extract supplements are not recommended for pregnant or breastfeeding women due to limited safety data.
- Allergies – Although rare, allergies can occur. Always check the ingredients carefully if you have known allergies.
Always consult your health practitioner before beginning any new supplement routine, particularly if you have existing health conditions or concerns.

Choosing Quality Olive Leaf Extract Supplements
When selecting an olive leaf extract supplement, quality matters. Here’s what to look out for:
Oleuropein Content – A high-quality supplement clearly states its oleuropein content. Aim for standardised extracts for consistent benefits. Our Supp Olive Leaf Extract contains 90mg per capsule.
Purity and Additives – Choose products free from unnecessary fillers, artificial colours, preservatives, and allergens. Our formula is vegan, gluten-free, and manufactured to GMP standards in the UK, ensuring the highest purity and quality.
Trusted Manufacturing – Look for supplements produced in facilities following Good Manufacturing Practices (GMP), which guarantees quality, safety, and consistency.
Final Thoughts
Olive leaf extract is a valuable supplement with promising health-supporting potential, particularly for immune and cardiovascular health. While further research continues to unfold, its traditional use and preliminary studies highlight its potential as a beneficial addition to a balanced, health-conscious lifestyle.
Always prioritise clear, evidence-backed information when considering supplements, and remember that maintaining overall wellness involves a balanced diet, regular physical activity, and a holistic approach to health.




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