They are also eating less variety
GPX5 is synthesized primarily by epididymal head epithelial cells and secreted into the epididymal cavity to compensate for a deficiency of antioxidant enzymes in immature sperm (Lahti et al., 2001)
A study by Dalmasso et al
Its regular formulation consists of: Milk Thistle Phospholipid Proprietary Blend: milk thistle integrated into a phospholipid complex, which bridges silymarins lipophilia and hydrophobia to improve absorption and bioavailability4 Siliphos: a branded milk thistle phytosome, which research suggests is better at moving into cells and reaching the bloodstream5 About Siliphos in Life Extension, the phosphates are carriers of silybin, believed to be the primary compound responsible for milk thistle's biological activity, particularly with regard to liver health.6 Here, the Siliphos provides 47.52mg of additional silybin, so the key takeaway (again) is that Life Extension delivers increased bioavailability of an important active compound
Common side effects include nausea, vomiting, and diarrhea, which are typically transient