About the Author

Dr. Paul Offit, professor of paediatrics at the Children's Hospital of Philadelphia and co-inventor of the rotavirus vaccine, is a leading authority on science-based medicine. His ability to communicate complex subjects to a general audience makes this book both authoritative and accessible. Offit has written extensively about the dangers of pseudoscience, and here he turns his attention to the world of vitamins, supplements, and natural remedies.

Key Insights You'll Gain

Offit dives into the history of alternative medicine, from herbal remedies to megavitamin therapy. He explains the placebo effect and how it can make ineffective treatments feel real. Readers will learn how to spot red flags—like promises of a “ ” or attacks on mainstream medicine—and why testimonials are not evidence.

The book also covers specific supplements: which ones have genuine scientific support, which are harmless but useless, and which can be dangerous. Offit discusses vitamins such as vitamin C and E, minerals like selenium, and popular botanicals like echinacea and St. John's wort. He does not dismiss all supplements; rather, he urges consumers to ask for proof.

What Readers Are Saying

Many readers have called this the best book on the subject, praising its thorough research and clear writing. Some note that it can be a tough read for those invested in alternative medicine, but often describe it as a necessary wake-up call. One reviewer mentioned that they buy copies for friends who are drawn to magical thinking about health—hoping to offer a dose of reality. Another found the book functional as a reference, while a few critics felt the tone was dismissive of holistic approaches. Overall, the conversation it sparks is considered invaluable.

Frequently Asked Questions

Is this book only for sceptics? No. It is for anyone who wants to make informed choices about their health, whether they lean toward natural remedies or conventional medicine.

Does the book recommend any supplements? Offit acknowledges that some supplements have proven benefits (like folic acid for pregnant women) but emphasizes that most are unnecessary for people with a balanced diet.

Is this book biased against alternative medicine? Offit presents evidence from clinical trials. He respects traditional practices that have been validated, but he is critical of those that evade scientific testing.

About the Book

In Do You Believe in Magic?, Dr. Paul Offit takes readers behind the curtain of the multi-billion dollar supplement industry. With a sharp eye and a commitment to evidence, he examines the claims made for vitamins, supplements, and natural remedies, separating sense from nonsense. This is not an attack on all things natural, but a reasoned call for science-based thinking when it comes to health.

The book explores why so many Canadians are drawn to alternative therapies, how the supplement market is largely unregulated, and why even well-educated consumers can be fooled. Offit doesn't stop at scepticism; he provides a framework for evaluating health claims and understanding the difference between a treatment that works and one that merely sounds plausible.

A Note on Making Informed Choices

As with any health-related decision, it is wise to consult a qualified healthcare professional before starting or stopping any supplement or therapy. This book provides the tools to ask better questions and evaluate the answers—not to replace medical advice. Always read the label and follow directions for use.