The document discusses solutions to obesity, including physical exercise and diet control, surgeries like bariatric procedures, and drugs. It notes that drugs are less effective than other options and weight can be regained. Surgeries are invasive and can cause other health issues. The document then focuses on modern pharmacotherapy for obesity, describing different types of drugs that work by decreasing appetite, increasing thermogenesis, or inhibiting digestion. These include sibutramine, rimonabant, and orlistat, but they can have side effects. The rest of the document discusses natural sources of pancreatic lipase inhibitors, including from plants, actinomycetes, algae, and fungi.