Star Fruit Leaf
Averrhoa carambola
About Star Fruit Leaf
Star Fruit Leaf (Averrhoa carambola) is a herb used in the Hawaiian & Polynesian Medicine tradition to help with High Blood Pressure, Cholesterol, Fever, and Skin Health. The fruit / berries and leaves are the parts traditionally used, used both internally and topically.
Botanical background
Averrhoa carambola is a species of tree in the family Oxalidaceae; it has a number of common names, including carambola and starfruit.
Source: Wikipedia, via iNaturalist
Parts used
Conditions addressed
Tea / Infusion
- Steep 1–2 tsp of dried Star Fruit Leaf in freshly boiled water for 5–10 minutes.
- Cover while steeping.
- Strain and drink.
Tincture
- Pack dried Star Fruit Leaf into a jar and cover with 40–60% alcohol.
- Seal and steep for 4–6 weeks, shaking daily.
- Strain and store in a dark dropper bottle.
Powder / Capsule
- Grind dried Star Fruit Leaf into a fine powder.
- Fill size 00 capsules or stir into smoothies or honey.
Topical / Poultice
- Mash fresh Star Fruit Leaf or mix the powder with a little water to form a paste.
- Apply to the affected area for 20–30 minutes.
Infused Oil
- Fill a jar with dried Star Fruit Leaf.
- Pour over a carrier oil until submerged.
- Leave for 4–6 weeks, then strain.
- Use topically or as a salve base.
Herbal Bath
- Brew 4–6 tbsp of Star Fruit Leaf in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
- Soak for 20–30 minutes.
Pregnancy, Breastfeeding & Children
No herb-specific pregnancy/child safety research is documented for Star Fruit Leaf in our references — the guidance below is based on its general effect category, not research on Star Fruit Leaf itself. Always confirm with a midwife, doctor, or pediatrician.
Pregnancy
Use CautionThis herb may affect blood pressure. Since blood pressure changes are a significant pregnancy risk factor (e.g. preeclampsia), herbs in this category are generally used only under medical supervision rather than self-directed — this is a general, mechanism-based caution, not herb-specific research.
Breastfeeding
Use CautionGenerally used cautiously during breastfeeding, particularly if the nursing parent is also on blood pressure medication.
Children
Use CautionBlood-pressure-active herbs are generally used cautiously in children and typically only under pediatric guidance.
Contraindications
- Pre-surgery — discontinue at least 2 weeks prior (potential antiplatelet effect)
Warnings
⛔ Heart & Blood Pressure Medications
May interact with antihypertensive drugs, blood thinners, or cardiac medications. Do not combine without medical guidance.
⚠️ Allergic Reactions
Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.
⚠️ Not Medical Advice
This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.
Drug & herb interactions
May affect blood pressure
Watch for: Antihypertensive medications (ACE inhibitors, beta-blockers, calcium channel blockers, diuretics)
Combined use can push blood pressure too high or too low — monitor readings if you take blood pressure medication.
May thin the blood
Watch for: Anticoagulants (warfarin), antiplatelets (aspirin, clopidogrel), and other blood-thinning herbs or supplements (ginkgo, garlic, fish oil, vitamin E)
Combining blood-thinning substances can increase bleeding risk, including before surgery or dental work.
Where to find in nature
Native region
Pacific Islands — Hawaii, Samoa, Tonga, Tahiti
Climate
Tropical maritime
Habitat
Pacific Island forests, coastal vegetation, and traditional garden plots
🌿 To see Star Fruit Leaf growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.
Where to buy
In store
- Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
- Naturopathic clinics and integrative medicine practices
- Specialist herbal apothecaries and herbalist practices
- Farmers markets with herb vendors
Online
iHerb
Wide selection of standardised extracts, capsules, and powders with lab testing
Mountain Rose Herbs
Premium bulk dried herbs — certified organic, ethically sourced
Starwest Botanicals
Large selection of certified organic bulk herbs and powders
Herb Pharm
High-quality liquid extracts and tinctures, rigorous quality standards
Amazon
Convenient — verify brand certifications and check third-party testing
Etsy
Small-batch artisan herbalists, hand-harvested and wildcrafted herbs
Quality tips
When buying Star Fruit Leaf, look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.