The Zone Diet Basics

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The Zone diet was created by Barry Spears PhD and the book The Zone: A Dietary Road Map was released in 1995, as a way of keeping people in the correct “hormonal zone”, for which the diet was named. Barry Spears was a research scientist at the Boston University School of Medicine and the Massachusetts Institute of Technology. Barry Spears has written several books on the Zone diet, including one on the benefits of soy as a valuable and complete protein source and how to make the Zone diet work for vegetarians.

The Zone diet was formulated to ensure the hormones insulin and glucose were being released at correct levels specifically through the foods eaten. In addition to this, this diet ensures that certain anti-inflammatory chemicals (ecosanoids) are maintained properly throughout the body.

The Zone Diet was created as a way of keeping people in the correct “hormonal zone”, for which the diet was named

The Zone diet aims to balance hormones to be released and absorbed within a specific (healthy) range to control hunger on fewer calories while still getting the proper nutrients the body needs for long-term health.The Zone diet recommends one gram of fat for every two grams of protein and three grams of carbohydrates. There are no special phases in this diet.

The premise of the Zone diet is to eat food in the following ratios:

  • 40% carbohydrate
  • 30% protein
  • 30% fat


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