30 years ago obesity rates were well below 10%. Since then the rates have doubled or tripled in many countries! Why? This is a concern raised by the OECD (Organisation for Economic Co-operation and Development). It has authored a 265 page report entitled "Obesity and the Economics of Prevention: Fit not Fat" written in collaboration with the WHO (World Health Organisation) and covering the world's 33 richest countries. I've read the document and what is surprising is that the solution to obesity is far from simple (although that is a matter of debate), there is no doubt the reasons behind it are very clear and can be summarised quite easily:

• A significant increase in calorie intake;
• the changes in the composition of our diets;
• changes in the types, choices and availability of food;
• our relationship to food and lack of involvement with its preparation;
• and the lack of intensity in activity levels at home, work and recreationally.

Because of the on-going health issues that are triggered by obesity,it is now viewed as a disease and is a primary concern for public health organisations worldwide. But unlike some conditions it is preventable and reversible. But let's be frank not many people even know what obesity really is. Why should I be concerned about a BMI (Body Mass Index) rating over 30? Definition:

"Obesity is a medical condition where excess body fat has accumulated to the point where it will have an adverse effect on health, life expectancy and increases the risk of contracting other life threatening diseases including Cancer, Heart Disease and type 2 Diabetes."

In terms of trending the report predicts that 75% of American adults will be overweight by 2020, the number is currently 70%. The UK is tied with Australia at 61% of adults being overweight (joint 4th place) and we are unlikely to hit a plateau any time soon - a worrying thought.

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