Research

Hormonal

Exogenous administration of spermidine or spermine improves glucose homeostasis, insulin sensitivity, and reduces adiposity in diet-induced obesity mouse models.

Current research indicates that spermidine and spermine supplementation may improve metabolic health in obese individuals, particularly by enhancing insulin sensitivity and reducing fat accumulation. However, most evidence comes from animal models. While human trials show increased blood levels with supplementation, direct metabolic benefits in humans are not yet fully established. Consult a healthcare provider before starting supplementation, especially if you have existing metabolic conditions.

ModerateSupportsMEDIUM confidence
Furthermore, the administration of either spermidine or spermine has been shown to be effective for improving glucose homeostasis and insulin sensitivity and reducing adiposity and hepatic fat accumulation in diet-induced obesity mouse models.
Bruno Ramos‐Molina et al. · Frontiers in Nutrition · 2019

Why this rating

Evidence is derived from multiple animal models (mice/rats) and in vitro studies, but lacks direct human clinical trial data confirming efficacy in humans.

Source

Dietary and Gut Microbiota Polyamines in Obesity- and Age-Related Diseases

Bruno Ramos‐Molina et al. · Frontiers in Nutrition · 2019

DOI 10.3389/fnut.2019.00024

narrative_reviewCited 228×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →