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Mark Hyman, MD
3:4110/31/25

Longevity Fact Check: What Urolithin A Really Does to Your Immune System

TLDR

Supporting the immune system daily, rather than just during illness, is crucial for longevity and overall health, with Urolithin A showing promise in rejuvenating immune function by boosting mitochondrial health.

Takeways

Immune health is fundamental to longevity, not just seasonal illness prevention.

Mitochondrial decline weakens the immune system, contributing to chronic inflammation.

Urolithin A rejuvenates the immune system and enhances mitochondrial function.

The immune system is deeply linked to longevity, and age-related decline leads to chronic inflammation and inefficient threat clearance. Mitochondrial health is critical for immune function, as these cellular power plants provide the necessary energy. Urolithin A is identified as a key compound that can significantly improve mitochondrial function and rejuvenate the immune system, leading to a more youthful and resilient profile.

Immune System & Longevity

00:00:15 Immune health is intricately linked to longevity, with the immune system and brain being key biological systems for lifespan and well-being. As individuals age, the immune system becomes less efficient at clearing threats and more prone to low-level activation, fueling chronic inflammation that drives age-related diseases. This chronic inflammation and immune aging go hand in hand, accelerating the diseases of aging.

Urolithin A Benefits

00:01:42 Urolithin A is a promising compound for targeting mitochondrial decline, improving the immune system, and promoting healthy aging. A new clinical trial showed that daily supplementation with 1,000 milligrams of urolithin A led to a more youthful immune profile, with T-cells becoming more responsive, improved threat clearance, reduced inflammation markers, and enhanced mitochondrial energy production. This helps the immune system act younger, faster, and more efficiently.