Indeed, in another study in 22 USA free-living men by the same researchers, Se supplementation with even higher doses (300 g per day as high-Se yeast for 48 weeks) did not affect serum androgen levels or semen quality (sperm count, motility, progressive motility, or morphology), despite increased serum and seminal plasma Se concentrations, from 140 to 230 g/L, while sperm Se concentration even decreased (188)
It involves demyelination and axonal loss, predominantly affecting the white matter of the posterior and lateral columns of the spinal cord, leading to subacute sensory-motor ataxia and spastic paraplegia
It gives you more energy for workouts and everyday things, without the need for stimulants
Studies show the compound crosses the blood-brain barrier efficiently despite its peptide structure, achieving central nervous system concentrations sufficient for biological activity following systemic administration