End-of-fast glucose response tests β log what you ate, when you read, and how your body responded. Build your own personal glycemic map over time.
π Testing Protocol
β οΈ Dawn Phenomenon note
Your fasting baseline will run higher than population norms due to DP β that's expected and doesn't invalidate the data. What matters is the spike above your own baseline (not the absolute number) and how quickly it returns. Compare test days to each other, not to a textbook fasting target.
T=0 Log fasting baseline glucose, then eat test food
+30 min First finger stick β a ~20-min walk will have occurred by this point. That's consistent across all tests and reflects your real post-meal routine. Reading will be lower than a sedentary +30, but comparably so every time.
+60 min Second reading β most informative single time point for mixed meals
+120 min Return reading β should be within ~30 of baseline if insulin response is healthy
π‘ What the spike shape tells you
Fast spike + fast return β decent insulin response Β· Slow climb + slow return β insulin resistance pattern Β· High peak β food is problematic regardless of health reputation Β· Flat line β safe food for you
π§ͺ High-value foods to test first (for your condition stack)
Homemade olive cheese bread + butter Β· A2 whole milk Β· GF sourdough vs. unfermented GF bread Β· Quinoa vs. millet vs. rice Β· Kefir alone Β· Sweet potato with/without EVOO Β· Any food + Ceylon cinnamon vs. without Β· Dark chocolate + milk (paired) Β· Berries alone vs. with yogurt
π Your Standardization Protocol β keeping variables consistent across tests
π§ Hydration
Target ~1 bottle (12 oz) before testing, ~1 bottle during the 2-hr window. Water only during the window. Consistent across all test days.
π€οΈ Movement / Outdoor Time
Test food is eaten immediately before outdoor time. Start the walk ~15 minutes after your last bite β sourdough absorption begins at ~15β20 min on a fasted stomach, so walking at this point intercepts glucose while it's actively entering circulation and before the T+30 peak. Earlier than 15 min = burning liver glycogen instead; later reduces the blunting effect on your T+30 reading. A ~20-min walk consistently finishes before the +30 reading. This is intentional β the walk is a controlled constant across all tests, not a confounding variable. Readings reflect real-life behavior (eat β walk β continue day), which is the right map to build. On rainy days: match treadmill time + intensity to preserve the constant.
β±οΈ Fasting window
End-of-fast testing. Baseline reading taken immediately before eating the test food. Dawn Phenomenon will elevate baseline β that's expected. Compare spike above baseline across tests, not the absolute number.
π First test food
Homemade olive cheese bread (1 slice) + butter β the primary grain in your diet. Fat+carb combo. Establishes your personal baseline for what a "real" food response looks like before testing others.