Feijoa powder

Intervention1 paper4 findings

In a human trial reported in a preprint, feijoa powder lowers fasting plasma glucose and HbA1c without changing GLP-1 in participants with overweight and prediabetes; body weight decreases at 1,150 mg/day in month two.

  • Human trial1

Outcomes

4

GLP-1

no changein humans1Low certainty

1 study
  1. Feijoa powder has no effect on GLP-1 in humans.

    “GLP-1 concentrations did not differ between groups. However, no change in GLP-1 was observed between the treatments.”

    Human trialoverweight and prediabetes12 weeksn = 39

    Effect of daily consumption of whole fruit feijoa powder (Feiolix) on metabolic profile: A Randomised Controlled Trial · medRxiv · 22 Sep 2026 · Preprint

GLP-1 →

Body weight

downin humans1Low certainty

1 study
  1. Feijoa powder decreases body weight in humans.

    “The Feiolix-HD attenuated the increase in triglycerides and reduced body weight and BMI by month 2 compared to placebo.”

    Human trialoverweight and prediabetes1,150 mg/daymonth 2n = 39

    Effect of daily consumption of whole fruit feijoa powder (Feiolix) on metabolic profile: A Randomised Controlled Trial · medRxiv · 22 Sep 2026 · Preprint

Fasting plasma glucose

downin humans1Low certainty

1 study
  1. Feijoa powder decreases fasting plasma glucose in humans.

    “Compared with placebo, Feiolix supplementation significantly lowered fasting plasma glucose, insulin, HOMA-IR, total cholesterol and LDL-cholesterol.”

    Human trialoverweight and prediabetes12 weeksn = 39

    Effect of daily consumption of whole fruit feijoa powder (Feiolix) on metabolic profile: A Randomised Controlled Trial · medRxiv · 22 Sep 2026 · Preprint

Fasting plasma glucose →

HbA1c

downin humans1Low certainty

1 study
  1. Feijoa powder decreases HbA1c in humans (-0.5% (HD), -0.4% (LD) vs placebo).

    “At week 12, HbA1c decreased by 0.5% in the Feiolix-HD and by 0.4% in the Feiolix-LD, with both reductions significantly greater than placebo (p < 0.05);”

    Human trialoverweight and prediabetes12 weeksn = 39

    Effect of daily consumption of whole fruit feijoa powder (Feiolix) on metabolic profile: A Randomised Controlled Trial · medRxiv · 22 Sep 2026 · Preprint

HbA1c →

Latest

Nov 2025: 0Dec 2025: 0Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 1Oct 2026: 01