{"version":"1.0","type":"card","id":"720aef21-37d3-4804-8def-dc25919b96bf","url":"https://stacklist.com/card/720aef21-37d3-4804-8def-dc25919b96bf","title":"Energy Drinks vs Coffee: Which is Better for Workouts?","source_url":"https://fitchef.com/shorts/energy-drinks-vs-coffee-workouts/","note":"Are energy drinks worse than coffee for workouts? Performance is identical (291 vs 294 watts). The real gap is in everything the label doesn't mention.","image":{"url":"https://ucarecdn.com/b5563a91-2a7c-4e47-8c43-391a42fab2d6/","alt":"Energy Drinks vs Coffee: Which is Better for Workouts?","width":1280,"height":800},"stack":{"id":"55c6078f-47e9-468f-b0f4-8d04f18e7854","title":"Caffeine Sources Compared - Coffee vs Energy Drinks","url":"https://stacklist.com/c/wellness/stack/55c6078f-47e9-468f-b0f4-8d04f18e7854"},"created_at":"2026-08-30T18:38:41.752Z","updated_at":null,"aco":{"summary":"Energy drinks and coffee deliver identical workout performance because caffeine is the only proven performance-boosting ingredient in both, with cycling power output differing by less than 1%. Coffee offers additional antioxidant and anti-inflammatory benefits, while energy drinks may introduce cardiovascular risks such as prolonged QTc intervals not caused by caffeine alone.","tags":["energy-drinks","coffee","caffeine","workout-performance","sports-nutrition","supplements","heart-safety"],"key_entities":[{"name":"Jagim","type":"person","confidence":0.85},{"name":"Lowery","type":"person","confidence":0.85},{"name":"International Society of Sports Nutrition","type":"organization","confidence":0.9},{"name":"caffeine","type":"concept","confidence":1},{"name":"exercise performance","type":"concept","confidence":0.95},{"name":"QTc interval","type":"concept","confidence":0.85},{"name":"taurine","type":"concept","confidence":0.8},{"name":"chlorogenic acids","type":"concept","confidence":0.75}],"classification":"analysis","language":"en","confidence":0.85,"provenance":{"model":"claude-opus-4-6","tool":"@stacklist/mcp-server@2.0.0","confidence":0.85,"timestamp":"2026-08-30T18:38:53.809Z"},"token_counts":{"approximate":2734,"cl100k":2284},"content_hash":"sha256:93b293dadc5b713a8f85b82cfaf04a4d45dfc57ad70dad79b03c5184f3c632b4","acp_version":"0.2","body_available":true,"body_tokens":2734,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/720aef21-37d3-4804-8def-dc25919b96bf.json","html":"https://stacklist.com/card/720aef21-37d3-4804-8def-dc25919b96bf","md":"/api/public/card/720aef21-37d3-4804-8def-dc25919b96bf.md","stack_json":"/api/public/stack/55c6078f-47e9-468f-b0f4-8d04f18e7854.json"}}