Dogs

Olive polyphenols as a natural antioxidant supplement

In a controlled trial of 30 dogs, oil-free olive pulp flour at 11.5 mg per kg body weight per day lowered a blood marker of oxidative stress (d-ROMs).

What the research shows

  • Lower oxidative stress marker (d-ROMs: 101.26 to 86.67 U CARR)30 dogs; p < 0.044 (Minieri et al. 2024)
  • Tendency toward higher blood antioxidant capacityMinieri et al. 2024
  • Natural polyphenols from olive pulp: hydroxytyrosol, tyrosol, oleuropeinBilal et al. 2025 (composition review)

Recommended inclusion

Supplement dose in the trial: 11.5 mg per kg body weight per day of oil-free olive pulp flour (about 230 mg per day for a 20 kg dog).

Complete pet food: inclusion is set for each recipe by palatability and digestibility tests.

In practice

  • Ask for the certificate of analysis for each lot and formulate with its values.
  • Introduce gradually over 7–14 days.
  • Store dry, covered and cool; use the oldest stock first.
  • Compare with a group on your usual diet to document your own results.

References

  1. Minieri S. et al. (2024). A diet supplemented with oil-free olive pulp flour (MOP-ManniOlivePowder) improves the oxidative status of dogs. Animals 14(17):2568. doi.org/10.3390/ani14172568
  2. Bilal R. M. et al. (2025). Nutritional application of olive pomace in dairy animals. Archives of Animal Breeding 68:731. doi.org/10.5194/aab-68-731-2025