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The spleen is an organ that plays key roles in red blood cell production and breakdown, as well as immune system function. When spleen function is limited, these activities may be impacted. (source)
Spleen insufficiency can negatively impact performance by impairing red blood cell production and breakdown, which reduces oxygen transport to muscles and affects endurance. Additionally, weakened immune function due to spleen dysfunction can increase the risk of infections, leading to potential interruptions in training and recovery. Improving spleen function or managing insufficiency effectively could enhance overall athletic performance by ensuring better oxygen delivery and a more resilient immune system, contributing to more consistent training and recovery.
Supplement with Astragalus: Astragalus has been shown to support spleen health. (source) Astragalus contains a compound that enhances immune function, reduces inflammation, and modulates gut microbiota, actions that promote spleen health and function. (source, source) Recommendation: Supplement with at least 1 g of astragalus daily.
Supplement with Milk Thistle: Supplementation with milk thistle has been shown to improve markers of spleen health. (source) Milk thistle provides antioxidant protection, which reduces the impact of toxins, and enhances immune function, all of which support spleen health. (source) Recommendation: Supplement with at least 280 mg of milk thistle daily.
