Pomegranate peel extract extends lifespan and healthspan markers in C. elegans
In the nematode C. elegans, an ellagitannin-rich extract from Granato pomegranate peels extended lifespan and improved movement, feeding, muscle integrity and gut barrier function, linked to SKN-1/NRF2 stress-response activation. This is an animal-model result, not evidence of human benefit. [1]
Automatic summary · not editorially reviewed
The key findings
Punicalagin was the predominant compound, and the extracts showed high antioxidant capacity in DPPH and FRAP assays. [1]
In C. elegans, the Granato extract extended lifespan and improved locomotion, feeding activity, muscle integrity and intestinal barrier function. [1]
The improvements were linked to SKN-1/NRF2 pathway activation and reduced age-related oxidative stress, consistent with a hormetic mechanism. [1]
The source at a glance
- Study type / format
- Abstract of a laboratory and animal-model study
- Population / context
- Pomegranate peels from two Italian cultivars; in vivo testing in Caenorhabditis elegans nematodes.
- Summary based on
- Study abstract
- Original publication
- August 15, 2026
Extraction and antioxidant testing of two Italian cultivars
The abstract describes pomegranate peels from two selected Italian cultivars processed with environmentally friendly extraction aimed at optimizing ellagitannin recovery. Punicalagin was the predominant compound, and the extracts showed high antioxidant capacity in DPPH and FRAP assays. These are chemical laboratory measurements, not outcomes in a living organism.
Supporting source [1]
Lifespan and healthspan markers in C. elegans
The Granato cultivar was selected for in vivo evaluation in the nematode Caenorhabditis elegans. There the extract extended lifespan and improved key healthspan markers: locomotion, feeding activity, muscle integrity and intestinal barrier function. The abstract attributes these improvements to activation of conserved stress-response pathways, particularly the SKN-1/NRF2 axis, and associates them with improved mitochondrial function and reduced age-related oxidative stress, consistent with a hormetic mechanism.
Supporting source [1]
Antibacterial activity and proposed applications
The extract also showed antibacterial activity, mainly against Gram-positive bacteria. The authors present pomegranate peel as a sustainable source of high-value bioactive compounds with potential applications in nutrition, dietary supplements and dermo-cosmetics. These are proposed uses, not demonstrated human benefits.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. The in vivo findings come from the C. elegans nematode model, not humans. The abstract does not report sample sizes, extract doses, follow-up duration or statistical details. Proposed applications in nutrition, supplements and dermo-cosmetics are not tested human outcomes.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Schifano E, Cairone F, Guarnieri M, Bonfanti A, Mancini P, Arpante I, Montanari A, Mazzoni C, Uccelletti D, Cesa S. · europepmc.org · August 15, 2026