Iterate Your Supplement Stack in 90 Days: Framework for Clear Decisions

Why You’re Optimizing Blind Without a 90-Day Rhythm

• Audit – What goals does each product pursue (e.g., ferritin > 60 µg/L)? Which biomarkers do you measure in weeks 0, 6, and 12?
• Test – Maximum three experiments in parallel so you can clearly separate effects.
• Scale – Only supplements with proven impact make it to the “Keep” list; all others go to the archive.

KPI Board for Supplements

Phase	KPI	Measurement Point
Audit	Define reference value	Week 0
Test	Trend or symptom score >+20%	Week 6
Scale	Stabilization without side effects	Week 12

Operational Flow

1. Stack Inventory in Notion or Lab2go: product, dose, batch, target value.
2. Reminder Layer – daily confirmations + comment field for side effects.
3. Review Session every 30 days with coach or medical advisor.

Conclusion

Supplements are only as good as their feedback loop. With a fixed 90-day cadence, you waste neither money nor compliance and see in black and white which products really deliver.