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Small-sample absence of apparent side effects does not establish universal safety or isolate a single isomer.\nexposure: Green coffee extract delivering 140 mg/day chlorogenic acids\nevidence_span: {\"source_cache\": \"artifacts/chlorogenic_acid-research/16820341.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"47326bb2b286adb85689ebeb57d99f79bde7d2a62cf8dcedc1a6e349aac986f9\", \"start_char\": 0, \"end_char\": 906, \"text_sha256\": \"47326bb2b286adb85689ebeb57d99f79bde7d2a62cf8dcedc1a6e349aac986f9\"}\n[chlorogenic_acid-p16820341] The blood pressure-lowering effect and safety of chlorogenic acid from green coffee bean extract in essential hypertension. 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