Think Like a Pancreas by Gary Scheiner is a comprehensive, jargon-free guide designed specifically for individuals using insulin—whether via injections, pumps, or automated systems—who want to manage their diabetes with clarity and confidence. Scheiner, a certified diabetes educator and longtime insulin user, invites readers to “think like a pancreas”: to understand and match insulin delivery to the body’s constantly shifting needs.

The book begins with Scheiner’s own journey: diagnosed with type 1 diabetes in the 1980s, he brings both professional insight and personal experience to the table. His approach is candid, relatable, and encouraging, making medical complexities accessible.

One of the book’s core strengths is its practical breakdown of insulin regimen setup. Scheiner explains the importance of establishing precise basal (background) insulin rates, with clear step-by-step instructions and helpful tables to guide fine-tuning. Readers learn how to conduct fasting basal tests and adjust long-acting insulin doses to maintain stable blood sugar during periods of rest or fasting.

Building on that foundation, Scheiner walks readers through the concept of bolus insulin—how to dose meals, handle blood sugar corrections, and time insulin to prevent after-meal spikes. He provides nuanced insights into insulin sensitivity variations (like greater overnight sensitivity) and gives strategies for exercise and post-meal routines.

He then explores real-life variables—stress, illness, caffeine, travel, protein-only meals, and more—that affect glucose control. One standout tip: when consuming protein without carbs, some small insulin correction may still be needed. Another: after a heavy or restaurant meal, using a temporary basal rate can help manage lingering blood sugar resistance.

The book also dives into modern tools and technologies for diabetes management—continuous glucose monitoring (CGM), insulin pumps, and automated insulin delivery systems—offering guidance on how to make them work best for your lifestyle and needs.

Scheiner doesn't just lay out facts—he also addresses the emotional, motivational, and lifestyle aspects of diabetes. He shows how better glucose control can improve mood, reduce irritability, and enhance overall well-being, giving the whole story beyond numbers and charts.

Praise throughout underscores its value: it strikes a “casual yet professional tone,” is “highly practical, humorous, and detailed,” and is considered “the best guidance anywhere for people using insulin.”

Think Like a Pancreas delivers an all-in-one, user-friendly manual for mastering insulin therapy, combining evidence-based strategy with personal wisdom and approachable guidance. It’s a must-read for insulin users, their loved ones, or anyone supporting diabetes care.