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Excess weight, not just excess alcohol, can harm your liver
05th February 2018 Posted by Tia No comments
Filed in: Health & Fitness

Most of us living in Thailand have some interests or concerns over health and fitness issues, so Inspire will each week share some of the most relevant articles for you

Overweight teenagers are at of risk developing liver disease in later life. What can we do about it?

The latest evidence suggests that being overweight or obese in your late teens predicts a higher chance of liver disease in later life. The pioneering study spans 27 years and includes 1.2 million men. What can we learn from this? And, given that 1 billion people worldwide are projected to be obese by the year 2030, how can we reduce such health risks for people throughout their lives?

What is this study?
From 1969 to 1996, men who took part in Sweden’s compulsory national service were assessed throughout their lives on their body mass index (BMI), as well as their health problems. BMI is the measurement for a person’s weight relative to their size and the ‘normal’ range for men is 22.5-24.9.

Their BMI data was collected when the men enrolled in the national service programme, when they were aged between 17 and 19. This was correlated with the causes of death for those who passed away during the time period, which is how researchers made the link between overweight or obesity in late adolescence and the likelihood of developing liver disease in later life. Detailed data was available for around 34 million person years, giving researchers unprecedented understanding of the big picture1.


What do we know?
In line with other research, this study suggests that overweight and obesity are indicators of health risks such as liver disease. Underweight, overweight and obese men were much more likely to develop liver disease in later life. Even men in the ‘normal’ BMI range (22.5-24.9) were found to be more likely to develop liver disease in later life, than the lowest risk group (18.5-22.5)2.

Is it conclusive?
There are factors that the study did not take into account, such as:

- The rate of alcohol consumption throughout the men’s lives
- The fluctuation of men’s BMI throughout their lives
- Changes in diet and exercise throughout the men’s lives

However, this does not mean the findings are inaccurate – only that there are a variety of causes for liver disease that could not be factored into this particular study.

Does it mean fat is worse for your liver than alcohol?
Alcohol causes 70% of the 12,000 annual deaths from liver disease in the UK. In moderation, alcohol will not cause harm to the liver. Going beyond the recommended safe limits for alcohol (see below) on a regular basis, will increase the risk of developing liver disease.

Hands holding glasses with beer on a table in London


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