A common supplement could supercharge cancer treatments

Zeaxanthin, best known for eye health, has been found to boost the tumor-killing power of T cells. Researchers showed it strengthens T-cell receptors, enhances immune signaling, and improves the effects of immunotherapy. Found naturally in foods like spinach and peppers, it’s safe, accessible, and now a promising candidate for cancer treatment trials.

source https://www.sciencedaily.com/releases/2025/10/251001092214.htm