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Simultaneous and sensitive quantification of protein and low molecular weight persulfides, polysulfides and H2S in biological samples | Nature Communications

The researchers noted that "acute ingestion of SPB [Setria Performance Blend]* after eight days may enhance blood flow, L-citrulline, and L-arginine plasma concentrations after high-intensity exercise, which may enhance performance." *Setria Performance Blend is now referred to as Setria for Sport This study demonstrates the specific benefits for endurance athletes, especially in terms of improved blood flow, oxygen delivery, and recovery capacity following high-intensity exercise

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Vitamin D also regulates multiple enzymes involved in the production of steroid hormones [368,369] and plays a role in insulin secretion and sensitivity via modulating the function of pancreatic beta cells [370,371]