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
4GLP-1
no changein humans1Low certainty
1 study
GLP-1
no changein humans1Low certainty
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
Body weight
downin humans1Low certainty
1 study
Body weight
downin humans1Low certainty
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
Fasting plasma glucose
downin humans1Low certainty
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
HbA1c
downin humans1Low certainty
1 study
HbA1c
downin humans1Low certainty
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