“…Severe selenium deficiency can cause symptoms and diseases including myopathy, cardiomyopathy, arrhythmia, muscle wasting, impaired immunity, low thyroid function, loss of skin and hair pigmentation, whitened nail beds, and progressive encephalopathy [15,16]. On the other hand, zinc deficiency has been reported to cause diarrhoea, emotional disorders, weight loss, intercurrent infection, bullous-pustular dermatitis, and hypogonadism in males [15,17]. Finally, copper deficiency in adults can manifest in hematologic and neurologic symptoms, and cases of normocytic anaemia, myelopathy and myeloneuropathy related to copper deficiency after bariatric procedures have been described [15,[18][19][20][21][22].…”