Nordic Sun – 100% Organic Quince Juice 1 L

Scientifically Supported Health Benefits of Quince

• Immune support and antioxidant protection

The vitamin C and polyphenols in Japanese quince enhance the function of immune cells while neutralizing free radicals. These effects reduce susceptibility to infections and oxidative stress-related aging [1,2].

• Anti-inflammatory and antiallergic activity

Quince flavonoids suppress histamine release and inflammatory cytokines. In experimental models, quince fruit extracts reduced allergic airway responses and histopathological signs of inflammation [3,4].

• Digestive health and microbiota balance

Organic acids and pectins promote digestion and support a healthy gut microbiome. Some studies show increased bifidobacteria growth and improved bowel regularity with consumption of quince-derived products [5].

• Skin and collagen support

High vitamin C content supports collagen synthesis, wound healing, and skin barrier function. Additionally, polyphenols and triterpenes protect skin cells from UV-induced oxidative stress [1,6].

• Hepatoprotective properties

In vitro and animal studies suggest that quince extracts help protect liver cells from chemical-induced damage, likely through antioxidant and anti-inflammatory pathways [3,7].

• Metabolic and blood sugar support

Quince polyphenols inhibit α-glucosidase activity and reduce post-meal blood glucose spikes. These effects may be beneficial for individuals with insulin resistance or prediabetes [8].

• Respiratory and throat soothing effects

Traditional use includes treating cough and throat irritation. Modern studies suggest mucilage and polyphenol content may coat and soothe mucous membranes [4].

References

1. Wojdyło, A., et al. (2013). Polyphenolic compounds and antioxidant activity of Japanese quince (Chaenomeles japonica) fruit. Food Chemistry, 141(1), 1–9.
2. Mroczek, A., et al. (2018). Phenolic profiles and antioxidant activity in leaves and fruits of quince. Phytochemistry Letters, 23, 134–140.
3. Zhang, J., et al. (2017). Triterpenoids from Japanese quince and their anti-inflammatory and hepatoprotective effects. Fitoterapia, 119, 67–74.
4. Lee, J. S., et al. (2011). Antiallergic effects of Chaenomeles sinensis and Chaenomeles japonica. Journal of Ethnopharmacology, 134(3), 876–880.
5. Koleska, M., et al. (2020). Fermented Japanese quince juice improves gut microbiota composition and bowel function. Nutrients, 12(11), 3374.
6. Chen, M., et al. (2019). Polyphenols from quince protect human dermal fibroblasts from UV-induced damage. Journal of Functional Foods, 58, 110–118.
7. Li, H., et al. (2015). Hepatoprotective effect of Chaenomeles japonica extracts in rats. Pharmaceutical Biology, 53(9), 1375–1381.
8. Nowak, R., et al. (2018). Chaenomeles japonica fruit polyphenols as inhibitors of digestive enzymes: Implications for diabetes and obesity. Molecules, 23(12), 3156.