Continuous Glucose Monitor (CGM)

A small filament sits in interstitial fluid (just under the skin) and measures glucose continuously, transmitting via Bluetooth to an app. Interstitial glucose lags blood glucose by 5–15 minutes but tracks it closely enough for trend analysis. Two weeks of data captures fasting baselines, meal responses, dawn-phenomenon spikes, and overnight stability — far more signal than spot-check fingersticks.

One 14-day sensor every 3 months during active protocol changes. Daily during dose escalations.

Wear during dose-escalation periods (first month of any new peptide), once a quarter for maintenance. Apply on the back of the upper arm, away from injection sites. Calibrate behavior changes — track what foods spike you, when fasting glucose runs high, what your peptide actually does to your curve.

• Don't know what your fasting glucose actually runs
• Can't say which foods spike YOU vs in general
• On a GH-secretagogue without ever measuring glucose response
• Tirz/reta dose escalations without watching for hypoglycemia symptoms

• You see your real glucose patterns for the first time
• Identify 2–3 specific foods that spike you (often unexpected)
• Verify your peptide is doing what it should — or catch when it isn't
• Adjust meal timing based on actual data, not guesses

• Trusting individual readings in week 1 — sensors often need 24–48 hrs to stabilize
• Reacting to single spikes instead of trends — meal response variance is normal
• Wearing during heavy training without noting it — exercise drops interstitial glucose temporarily
• Treating it like a fingerstick replacement for hypo detection — interstitial lags blood by 5–15 min