there’s a new whole-fruit
BOTANICAL on the block.
Feiolix® is a whole-fruit powder derived from feijoa (Acca sellowiana), a distinctive, aromatic fruit cultivated extensively in New Zealand.
Traditionally eaten fresh in autumn, feijoa is now being studied as a botanical ingredient, including in a randomised controlled trial of Feiolix®, because of its naturally high fibre and polyphenol content.
For brands developing products in gut health and metabolic nutrition, feijoa offers a differentiated fruit-based platform beyond commoditised ingredients.
From Fruit
to Ingredient.
Feijoa is an evergreen shrub or small tree native to the highlands of South America and grown widely in New Zealand since the 1920s. The fruit is oval, green and highly aromatic, about the size of a chicken egg.
Ripe feijoa bruises easily and is seldom shipped fresh, so most of the crop is eaten close to where it grows.
Botanical name: Acca sellowiana (syn. Feijoa sellowiana)
New to the fruit itself? Our feijoa fruit guide covers what a feijoa is, pineapple guava, taste, growing and nutrition.
Feijoa Nutritional &
Bioactive Profile
Feijoa is naturally rich in:
- Dietary fibre (soluble and insoluble)
- Polyphenols
- Flavonoids
- Vitamin C
- Diverse plant phytonutrients
Raw feijoa provides 6.4 g of fibre and 32.9 mg of vitamin C per 100 g (USDA FoodData Central). In an analysis of Australian-grown fruit, the edible peel held significantly more antioxidant flavonoids and vitamin C than the pulp (Phan et al., Foods, 2019), which is the rationale for using the whole fruit, skin included.
what the
research shows.
Digestive Health &
Fibre.
What the evidence shows:
- Raw feijoa is a high-fibre fruit: 6.4 g per 100 g (USDA FoodData Central)
- Feiolix® contains xyloglucan fibre (Feiolix technical data)
- In mice fed a high-fat diet, Feiolix increased beneficial gut bacteria (animal study, not yet shown in people)
The FERDINAND trial did not report stool, gut bacteria or short-chain fatty acid results.
Blood Glucose
Research.
Human data so far:
- FERDINAND (6 months, 97 adults with overweight and prediabetes, placebo-controlled): no significant difference from placebo in fasting glucose or body weight. The low-energy diet drove most of the change in both groups.
- Consumer study (16 healthy adults, 10 days, continuous glucose monitor, no placebo group): the glucose rise 30 minutes after a high-sugar breakfast was 12% to 35% smaller on Feiolix days than on baseline days, depending on dose (300 mg to 2300 mg). It is small and non-randomised, so it cannot show cause.
For mechanistic insights and research data, visit our Science Behind Feiolix® page.
Blood Pressure
Research.
In FERDINAND:
- Systolic blood pressure was lower with Feiolix than placebo at 4 and 6 months (126 versus 133 mmHg at 6 months)
- The authors caution that 47% of participants had hypertension at baseline and the effect was not seen in those with normal blood pressure
- No treatment effect on HbA1c, insulin, cholesterol or body composition
Source: Mohamed et al., Diabetes, Obesity and Metabolism, 2026.
Explore formulation concepts within our NPD Support section.
Polyphenols &
Vitamin C.
Raw feijoa provides 32.9 mg of vitamin C per 100 g (USDA), and vitamin C contributes to the protection of cells from oxidative stress (authorised EU health claim).
About 60% of the polyphenols in Feiolix® are catechins, according to the FERDINAND paper. The authors discuss catechins as a possible contributor to the blood pressure result but did not measure this.
The Whole
Fruit Advantage.
Feiolix® is produced from the entire feijoa, including the skin.
This approach keeps:
- The peel, which holds more flavonoids and vitamin C than the pulp (Phan et al., Foods, 2019)
- The fruit’s own fibre
- The full range of compounds in the fruit, rather than a single isolated extract
Whole-fruit powders suit clean-label, naturally positioned product development.
For the full trial results and methods, see Science Behind Feiolix®.
Feiolix®: Designed for
Product Innovation.
To access technical documentation, positioning materials and formulation support, visit our NPD Support section.
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Let’s Formulate the Next Generation
of Metabolic Health Solutions.
Whether you are developing blood glucose support or metabolic nutrition products, Feiolix® offers a natural, whole-fruit ingredient, and its first randomised controlled trial is published. Brands can find supply partners through Anagenix’s distributor network.
