But, as a cardiologist who has been in practice for nearly three decades and written more than 800 medical publications, including two text books, I am here to tell you that fatness has been sorely misunderstood.
Indeed, there is much evidence to suggest that, just as a glass of wine a day has been proven to impart health benefits, so body fat in the right amount can be exactly what we need to live long and healthy lives.
Don’t get me wrong: I’m not suggesting that people of ‘normal’ weight start embracing cream buns and piling on the pounds.
But if you are already carrying extra fat, it’s not the end of the world, especially if you maintain a certain level of fitness (and I don’t mean being able to run a six-minute mile or committing to an exercise regimen on a par with an Olympic athlete’s).
For the millions of people categorised as overweight or mildly obese by the most commonly used standard today — the body mass index, or BMI — the good news is that achieving optimal health may mean staying exactly where you are in terms of weight.
That’s right: you don’t have to set your sights on getting your BMI down to ‘normal’, defined by the World Health Organisation as between 18.5 and 25.
You may, in fact, be much better off sustaining a BMI of between 25 and 30 — ‘overweight’ in WHO terms — or even slightly above, venturing into the realm of the mildly ‘obese’ (BMI above 30).
This advice holds true for people who want to prevent chronic illness and those already living with it, but it was those in the latter category who first inspired my research into this subject more than a decade ago.
Day in, day out I care for heart patients in Louisiana, the most obese state in the U.S.. And, like other colleagues in the cardiology profession, I began noticing that patients who are on the chubby side often live longer after diagnosis with heart disease than do their thinner counterparts.
We call this idea that fat can protect you from an early death the ‘obesity paradox’ and to say that it has ruffled a few feathers in my field is an understatement.
As I began to publish research papers on this phenomenon, I faced a tidal wave of ingrained ideology. Even veteran scientists and respected journal reviewers were reluctant to entertain new thinking about fat, but the science has since spoken for itself.
Over the past few years, a multitude of studies around the globe have not only confirmed the existence of the obesity paradox but demonstrated that it also applies to a host of chronic ailments in addition to those related to the heart, including diabetes, cancer and kidney disease.
We often attribute excess weight to an increased likelihood that these conditions will be worsened or aggravated as a result, but the evidence proves otherwise: people who have been diagnosed with any of these ailments fare better in the long run if they are overweight or even mildly obese than if they are normal weight.
One explanation is that when the body is bearing the weight of a chronic disease, it requires more energy than usual so it makes sense that extra fuel in the form of body fat is helpful.
via A controversial book by a top doctor claims being overweight can help you fight disease – and even live longer | Daily Mail Online.