How often are people actually retesting?

My personal cadence: baseline + week 8 (cheap panel, basically the metabolic subset) + week 16 (full panel). That's 2 retests per cycle, ~$200 total, and you catch any creep early enough to adjust.

Same general approach. The week 8 'metabolic-only' pull (glucose, insulin, a1c, lipids) is the most cost-effective early warning check.

If you're running something novel or high-dose, 4-week retests are worth it for the first cycle to figure out YOUR response curve. Established protocols that you've already characterized — 8 and 16 is fine.

Thanks, that's a reasonable framework.