Zone Diet from Barry Sears


The creator of Zone diet, biochemist Barry Sears says that the participants of the Zone do not only lose weight till it becomes perfect, but they also come to hormonal balance in their bodies. In addition, they gain muscle mass that improves their sport results.

In 1970’s Dr. Sears was working at Boston University school of Medicine and Massachusetts Institute of Technology learning about lipids and their role in development of chronic diseases. In 1982 his attention was attracted by a Nobel Price Award given to the study that showed close relationship between hormones and development of such diseases as diabetes, cardiovascular diseases, cancers and immune system diseases.

Thirteen years later Dr. Sears summed up his thoughts in the first book, “Enter the Zone”. Many liked his ideas and the book sold out quickly becoming number one worldwide bestseller. Later on 10 more books on the Zone came out.

The diet is based on the theory that healthy body has well-balanced hormones. Our body, instinctively knowing what it needs, pulls essential substances from food in order to level out the hormones: insulin, glucagons and eicosaniods. So, proper food is the key element for healthy body.

As a rule modern people do not have time to cook something healthy and keep filling their bodies with “fast food” and heavy in calories snacks. Many diets say this is a bad way to treat the bodies and Zone offers its system to solve the problem. An individual should consume 40% carbohydrates, 30% protein and 30% fat. After following the diet for a while, Dr. Sears says that a person gets into “the Zone” where athletes perform better, mental activity increases, blood sugar balances out, body acquires perfect weight, and life in general becomes wonderful comparing to what it was before.

Although the formula is pretty clear, the entrance to “the Zone” is very individual. Besides 40-30-30 formula, a participant should adjust carbohydrate intake according to personal sensitivity to them.

In the later editions of the books, Dr. Sears added the important role of the Omega-3 and Omega-6 fatty acids extracted from fish oils. Lack of Omega-3 reduces brain activity and ruins hormonal balance.

The main reason why many specialists do not believe the Zone is because there is not much scientific proof to how it works exactly and why the numbers have to be 40-30-30 and not other proportions. However, Scientific American Frontiers has held a study which showed the diet cause significant weight loss. During the research several popular diets were compared and Dr. Sears’ formula gave the best result: great weight loss together with gained muscle mass. During the study participants also said the Zone had the easiest ration to adjust to with minimal side-effects: if hunger and fatigue occurred, they disappeared within first three days.

The pros of this diet are:

1. A participant does not have to say “no” to the food he or she loves, since Zone diet does not restrict any specific food group, but only asks for the right balance.
2. If one enters the Zone in a proper way, slow but permanent weight loss is guaranteed.
3. The diet is easy to follow.
4. There have been a lot of followers of the diet that proved it being effective. One can read about such celebrities as Jennifer Aniston, Tom Cruise, Renee Zellweger, Cindy Crawford and Tiger Woods using the Zone to lose weight.

However, there are some cons to consider:

1. The main formula 40-30-30 has not been scientifically proven.
2. The entrance point is not the same for everybody, so one should try by changing carbohydrate level which can be tricky.
3. Some essential nutrients are limited with the Zone such as carbohydrates which turn into glucose – body’s main source of energy.

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Posted on March 30, 2009 
Filed Under Diet Reviews, Weight Loss, Weight Loss News, Weight Loss Tricks

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