Kathie Madonna Swift Books

The Swift Diet: Heal the gut and lose weight fast - get a flat tummy in 28 days!

By Kathie Madonna Swift

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The Swift Diet

By Kathie Madonna Swift

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“Kathie Swift [is] a leader in the functional nutrition and functional medicine revolution.” —Susan S. Blum, MD, MPH, author of The Immune System Recovery Plan The latest research on the gut microb...

Swift Diet

By Kathie Madonna Swift

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The swift diet

By Kathie Madonna Swift

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" The microbiome is about to be the hottest thing in health. New research, for example, shows that lean people have different gut bacteria than heavier people. The Swift Diet will be the first to...

The Swift Diet

By Kathie Madonna Swift

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“Kathie Swift [is] a leader in the functional nutrition and functional medicine revolution.” —Susan S. Blum, MD, MPH, author of The Immune System Recovery Plan The latest research...

The Inside Tract

By Gerard E. Mullin MD, Kathie Madonna Swift MS RD LDN

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More than 60 million Americans suffer from digestive disorders such as gastroesophageal reflux disease and irritable bowel syndrome. In The Inside Tract by Gerard E. Mullin, MD, a comprehensive pla...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.