Glucose Science
Should You Eat Before a Blood Test? What You Need to Know
Learn which blood tests require fasting, how eating affects glucose and lipid results, and what to do if your fasting result doesn't match your CGM.
GLUCOSE SCIENCE
Glucose Science
Blood sugar moves for reasons: what you ate, when you slept, hormones, stress, and more. These articles explain what your glucose numbers and curve shapes mean, from post-meal spikes and overnight rises to metrics like time in range, GMI, and A1C.
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What normal actually looks like, with and without diabetes.
Normal Blood Glucose Levels: For People With & Without Diabetes
GMI, time in range, and A1C, and how they fit together.
A Comprehensive Guide to Glucose Metrics: Understanding GMI, TIR, and A1C
Learn to read the five post-meal curve shapes you'll see most.
5 Common CGM Curves After Meals and Why They Happen
Glucose Science
Why the Same Meal Spikes Blood Sugar Differently by Cycle Phase
Your breakfast spikes some days but not others? Hormonal shifts during your menstrual cycle can change insulin sensitivity and glucose response.
Glucose Science
Why Did My Blood Sugar Spike After a Low-Carb Meal?
Your low-carb meal spiked your blood sugar anyway. Protein, glucagon, stress, and hidden carbs all play a role. Here's what's actually happening.
Glucose Science
What's a Typical Blood Sugar Level Before Bed?
Target bedtime glucose is typically 100-140 mg/dL, but personal patterns matter more. Learn what affects overnight blood sugar and how to track it.
Glucose Science
What Is the Dawn Phenomenon and Why Does Blood Sugar Rise Overnight?
Why does blood sugar rise between 4 and 8 a.m.? Learn what causes the dawn phenomenon, how to spot it on your CGM, and practical ways to manage it.
Glucose Science
Why GMI and A1C Don't Match: 6 Common Reasons Your Numbers Disagree
Your GMI and A1C don't line up? Red blood cell turnover, CGM timing, and calibration differences can all create gaps between these two metrics.
Glucose Science
Blood Sugar Drops After Eating: Why Your CGM May Show a Post-Meal Dip
Your CGM shows a glucose drop after eating. Is it reactive hypoglycemia, sensor lag, or meal composition? Learn how to read post-meal dips.
Glucose Science
Why Sleep Can Change Your Glucose the Next Day
Poor sleep affects insulin sensitivity and stress hormones, changing blood sugar the next day. Learn how sleep quality impacts glucose control.
Glucose Science
Glucose Spikes in People Without Diabetes: What's Normal and What's Not
Learn what glucose spikes look like in people without diabetes, what causes them, and when patterns might warrant a conversation with your doctor.
Glucose Science
Why Breakfast Spikes Your Glucose More Than Lunch or Dinner
Morning glucose spikes hit harder because of the dawn phenomenon and reduced insulin sensitivity, not just because of what you ate. Here is what causes them and what you can do about it.
Glucose Science
Normal CGM Graph After Eating: What Patterns Are Common?
After eating, glucose usually rises within 15–30 minutes, peaks between one and two hours, and returns to baseline within two to three hours. Here's what shapes that curve.
Glucose Science
Why Some Meals Peak at 1 Hour and Others at 3 or 4
Learn why glucose peaks vary after meals. Some foods spike in an hour, others take 3-4. We break down the factors that change your CGM curve timing.
Glucose Science
How to Improve Your Time-in-Range: A Practical Guide for 2026
Learn evidence-based strategies to improve your time-in-range using CGM data, meal planning, exercise, and stress management for better glucose control.
Glucose Science
Return to Baseline vs Peak: Which Part of Your Glucose Curve Matters More?
Understand glucose peaks and return to baseline in your CGM data. Learn which matters more for diabetes management and how to interpret your curve.
Glucose Science
What Does Your Blood Sugar Number Mean? A CGM Guide to Any Glucose Number
Confused by 86, 89, or 110 mg/dL? Learn what a single glucose number means based on timing, and what CGM users should focus on instead: trends, Time in Range, and weekly patterns.
Glucose Science
Factors Impacting Your Glucose Levels and What You Can Do About It
Why my blood sugar levels fluctuate even when you eat the same foods? Factors like stress, sleep, hydration, and even the weather can play a bigger role than you think.
Glucose Science
How to Improve Your Time-in-Range After Meals
More clinicians and people with diabetes are becoming aware of Time-in-Range, a powerful metric to manage your diabetes.
See your meals next to your glucose curve.
SNAQ pairs photo-logged meals with your CGM data, so you can spot which foods are behind your spikes instead of guessing.