
Supplement Timing Calculator
This calculator creates your personalized daily supplement schedule using timing science from 240+ NIH-sourced supplements. Simply search and add your supplements to see exactly when and how to take them for maximum absorption and effectiveness.



📊 Science-Backed Timing
Maximize absorption with timing recommendations based on 240+ supplements from NIH sources. Each supplement includes bioavailability percentages and optimal time windows backed by pharmacokinetic research.
⚠️ Interaction Alerts
Automatically detects conflicts between your supplements—like iron competing with calcium or zinc depleting copper. Get instant warnings about timing conflicts and absorption interference.
📅 Personalized Daily Schedule
Build your supplement stack and receive a complete daily timeline organized by morning, afternoon, evening, and bedtime. Know exactly when and how to take each supplement for maximum effectiveness.