A robust immune system is your first line of defense -- not just against seasonal illness, but against the chronic low-grade infections and inflammatory processes that silently degrade performance and accelerate aging. This collection features the immune-supporting products I have personally tested and incorporated into my own protocols, especially during high-stress periods and travel. You will find targeted supplements that support both innate and adaptive immunity, including zinc formulations, vitamin D3/K2 combinations, medicinal mushroom extracts, and colostrum. I have also included products that address the gut-immune connection, since roughly 70 percent of your immune system resides in your digestive tract. As a Certified Personal Trainer who cannot afford to lose training days to illness, immune optimization is a practical priority for me, not a theoretical exercise. I track my sick days and recovery speed, and the products here have measurably improved both. Exclusive Outliyr discount codes are available on many items. Build an immune system that keeps you in the game year-round.