plants to investigate the possibility that these extracts could control the occurrence of obesity (lipase), diabetes (α-glucosidase and dipeptidyl peptidase-IV), Alzheimer’s disease (cholinesterases and β-secretase), and hypertension (angiotensin-converting enzyme) through inhibition of the key enzymes. The gene discussed is ACE; the disease is obesity due to melanocortin 4 receptor deficiency.