Cross the
threshold.
9 evidence-based longevity systems designed for independent execution. No prescriptions, calls or memberships needed.
Sleep OS:
Hormones Trio
60-day hormone-optimization sleep recovery. Testosterone, estrogen & progesterone — no prescriptions required.
Sleep OS: Testosterone
Targeted testosterone-sleep architecture support for men experiencing lighter, less consolidated sleep.
21-Day Melatonin Blueprint
For adults using melatonin who still can’t sleep. Evaluate timing, dose & response — then build a real protocol.
37-Part Circadian Mastery Protocol
Foundational circadian alignment practices for better sleep timing. The entry point for anyone new to sleep science.
5-Phase Gut-LDL-C Blueprint
Lower cholesterol using gut architecture + mechanism-first sequencing. For stubborn LDL that won’t respond to statins alone.
Food-Inflammation Audit
6-part protocol for stubborn inflammation & lipid markers that won’t budge despite “clean” eating.
Chronic Inflammation & Early Aging Risk Reduction
Is your inflammation a real longevity problem — and what do you do next? Decision tree + action framework.
Kidney Stone Prevention & Risk Reduction
Oxalate audit + risk management compass. 110+ peer-reviewed references. 6–8 week structured roadmap.
SPIRAL Lab Intelligence
6-part framework to detect early aging patterns from routine labs before they become diagnoses.
Work
1:1 with Kat
For complex cases that need a direct, structured approach. Kat Fu, M.S., M.S. works with a limited number of clients on personalized longevity strategy — combining 20+ years of research with individualized lab interpretation and protocol design.