selenium is part of the glutathione peroxidase enzyme system Proposed catalytic mechanism peroxidase. Glutathione Solgar Yeast-Free Selenium 200 mcg,

The episode gets into the fact that for some peptides in particular the GLPs/Reta there are randomized controlled trials to support their specific uses, (also true for Melanotan and GH secretagouges) but many people are taking these compounds for things other than what they were studied and approved for

Less common symptoms include headaches, a thumping heart (palpitations), altered taste, loss of appetite, pale appearance, sore mouth or tongue and ringing in the ears (tinnitus)

Specific Dosage Guidelines Severe Deficiency : For patients with severe vitamin B12 deficiency, an initial dose of 1 mg (1000 g) of intramuscular hydroxocobalamin is commonly administered

Relationship between serum levels of selenium and thyroid cancer: A systematic review and meta-analysis