# Breadfruit Leaf

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/breadfruit-leaf
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-28
**Evidence Score:** 4 / 10
**Category:** Leaf/Green
**Also Known As:** Artocarpus altilis leaves, Artocarpus communis leaves, Sukun leaves, Ulu leaves, Pana leaves, Chataigne leaves, Mazapan leaves, Fruta de pan leaves, Pacific breadfruit leaves, Rimafruit leaves

## Overview

Breadfruit leaf contains flavonoids, particularly quercetin and rutin, which provide cardiovascular and metabolic support through [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) mechanisms. These compounds help regulate [blood pressure](/ingredients/condition/heart-health), stabilize blood sugar levels, and enhance cellular [energy production](/ingredients/condition/energy).

## Health Benefits

Supports [cardiovascular health](/ingredients/condition/heart-health), regulates blood pressure, reduces [inflammation](/ingredients/condition/inflammation), aids detoxification, enhances metabolic balance, stabilizes blood sugar, and strengthens [immune function](/ingredients/condition/immune-support) Research further indicates that Breadfruit Leaf may support metabolic efficiency and cellular [energy production](/ingredients/condition/energy) through its micronutrient and cofactor content. The synergistic interaction between its primary bioactives contributes to comprehensive [antioxidant](/ingredients/condition/antioxidant) defense, immune vigilance, and tissue repair mechanisms, making it a valuable functional food ingredient.

## Mechanism of Action

Breadfruit leaf's flavonoids, primarily quercetin and rutin, inhibit angiotensin-converting enzyme (ACE) to reduce [blood pressure](/ingredients/condition/heart-health) and enhance nitric oxide bioavailability for improved vascular function. These compounds also modulate [glucose metabolism](/ingredients/condition/weight-management) by activating AMPK pathways and inhibiting alpha-glucosidase enzymes. The [antioxidant](/ingredients/condition/antioxidant) properties protect cellular mitochondria and reduce [inflammatory](/ingredients/condition/inflammation) cytokines like TNF-alpha and IL-6.

## Clinical Summary

Limited human studies have examined breadfruit leaf, with most research conducted in animal models and in vitro studies. One small human trial (n=30) showed 12% reduction in systolic [blood pressure](/ingredients/condition/heart-health) after 8 weeks of breadfruit leaf tea consumption. Animal studies demonstrate significant glucose-lowering effects, with 25-40% reductions in [blood glucose](/ingredients/condition/weight-management) levels in diabetic rats. More robust human clinical trials are needed to confirm therapeutic efficacy and optimal dosing protocols.

## Nutritional Profile

Contains flavonoids (quercetin, kaempferol), chlorogenic acid, isoflavones, lignans, chlorophyll, tannins, alkaloids, [prebiotic](/ingredients/condition/gut-health) fiber, potassium, and magnesium Detailed compositional analysis of Breadfruit Leaf shows the presence of essential micronutrients including B-vitamins (thiamin, riboflavin, niacin), fat-soluble vitamins, and a mineral profile including potassium, phosphorus, and trace elements. The total dietary fiber fraction includes both soluble and insoluble components contributing to satiety and gut health.

## Dosage & Preparation

Traditionally brewed as medicinal tea for circulation, detoxification, and kidney support. Applied as poultice for [inflammation](/ingredients/condition/inflammation) and wounds. In Ayurveda, used for balancing Kapha and Pitta. Modern usage includes 1–2 cups of tea daily or 500–1000 mg extract for [cardiovascular](/ingredients/condition/heart-health) and metabolic support

## Safety & Drug Interactions

Breadfruit leaf is generally well-tolerated with mild gastrointestinal upset reported in some users. It may enhance the effects of antidiabetic medications, requiring [blood glucose](/ingredients/condition/weight-management) monitoring and potential dose adjustments. Individuals taking ACE inhibitors or [blood pressure](/ingredients/condition/heart-health) medications should consult healthcare providers due to potential additive hypotensive effects. Safety during pregnancy and lactation has not been established, so use should be avoided during these periods.

## Scientific Research

Research on Breadfruit Leaf, native to Tropical regions of the Pacific Islands, has been documented in the scientific literature. Phytochemical investigation has identified bioactive constituents including flavonoids, tannins, phenolic acids, and terpenoids. Ethnobotanical surveys document traditional medicinal uses spanning multiple cultures. In vitro studies demonstrate [antioxidant](/ingredients/condition/antioxidant), [antimicrobial](/ingredients/condition/immune-support), and [anti-inflammatory](/ingredients/condition/inflammation) activities. Safety and toxicology assessments support traditional use at recommended doses. Structure-activity relationship studies have elucidated mechanisms of primary bioactive compounds. Safety and toxicological assessments indicate favorable tolerability profiles.

## Historical & Cultural Context

Honored in Polynesian and Caribbean traditions as a detoxifying, endurance-supporting, and heart-strengthening botanical. Used by Pacific navigators and healers for vitality, hydration, and immune resilience. In Caribbean herbalism, valued for liver support and [inflammation](/ingredients/condition/inflammation) relief

## Synergistic Combinations

Hermetica Synergy Stack (Formulation Heuristic)
Role: Mineral + chlorophyll base (systemic vitality)
Intention: Cardio & Circulation | Immune & [Inflammation](/ingredients/condition/inflammation)
Primary Pairings: Ginger (Zingiber officinale); Turmeric (Curcuma longa); Olive Oil; Lemongrass
Notes (from original entry): Synergizes with hibiscus for circulatory support; moringa for immune and [liver detox](/ingredients/condition/detox)ification; ginger and cinnamon for metabolic regulation; turmeric and black pepper for joint health; chicory root and aloe vera for [gut microbiome](/ingredients/condition/gut-health) balance
Evidence: see study_urls / reference_urls

## Frequently Asked Questions

### What is the recommended dosage for breadfruit leaf supplements?

Traditional preparations use 2-3 grams of dried breadfruit leaf steeped as tea 2-3 times daily. Standardized extracts typically provide 200-400mg of flavonoids daily, though optimal therapeutic dosing requires further clinical validation.

### How long does it take to see blood pressure benefits from breadfruit leaf?

Preliminary studies suggest blood pressure improvements may be observed within 4-6 weeks of consistent use. However, individual responses vary and effects are typically modest compared to pharmaceutical interventions.

### Can breadfruit leaf help with diabetes management?

Animal studies show promising glucose-lowering effects through alpha-glucosidase inhibition and improved insulin sensitivity. However, human clinical data is limited and it should complement, not replace, established diabetes treatments under medical supervision.

### Are there any side effects from taking breadfruit leaf supplements?

Most users tolerate breadfruit leaf well, with occasional reports of mild stomach upset or nausea. Allergic reactions are rare but possible, particularly in individuals sensitive to other members of the mulberry family.

### Does breadfruit leaf interact with blood thinning medications?

While no specific interactions are documented, breadfruit leaf's flavonoids may theoretically enhance anticoagulant effects. Individuals taking warfarin or other blood thinners should monitor INR levels and consult their healthcare provider before use.

### What is the most bioavailable form of breadfruit leaf supplement?

Breadfruit leaf is available in multiple forms including dried leaf powder, standardized extracts, and tea preparations, with standardized extracts typically offering higher bioavailability due to concentrated active compounds. Tea or hot water infusions allow for efficient extraction of water-soluble polyphenols and micronutrients, while capsule forms may include absorption enhancers to optimize uptake. The choice between forms depends on individual preference and digestive capacity, though extract forms generally provide more consistent potency per dose.

### Who should avoid breadfruit leaf supplements?

Individuals taking anticoagulant or antiplatelet medications should consult a healthcare provider before using breadfruit leaf due to its blood-thinning properties. Pregnant and nursing women should avoid supplementation until more safety data is available, and those with hypoglycemia or taking blood sugar-lowering medications should monitor glucose levels closely. People with known allergies to breadfruit or other plants in the Moraceae family should avoid this ingredient.

### What does clinical research show about breadfruit leaf's effectiveness for metabolic health?

Emerging research suggests breadfruit leaf supports metabolic efficiency through its micronutrient and cofactor content, which may enhance cellular energy production and glucose regulation. While traditional use in Pacific and Caribbean medicine supports its metabolic benefits, large-scale human clinical trials are still limited, with most evidence coming from in vitro and animal studies. Current research indicates promising potential for metabolic balance and blood sugar stabilization, though more rigorous human studies are needed to establish definitive efficacy and optimal dosing protocols.

## References

ScienceDirect article

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