By Raymond Onyango.

Fitness is a multi-billion-dollar business worldwide. According to the international current affairs magazine, TIME; Americans alone spend an estimated 19 billion dollars a year on gym memberships. In an article titled, ‘Why Exercise Won’t Make You Thin’, author John Cloud, notes that in spite of this colossal amount of money being poured into health club memberships, obesity rates in the United States Of America have continued on a seemingly uncontrollable upward spiral, with an estimated one-third of the entire American population now considered obese under the definition offered by the federal government.

The author’s argument against exercise is based on an interesting piece of logic. He reckons that the problem with exercise, is that it makes you hungry, and the more you exercise, the more hungry you get and thus the more you want to eat. As he puts it, a hard workout will burn maybe 200 to 300 calories, which you could put back with a single muffin, and so when you exit the gym and settle down to a sugary snack right after that hard workout, you are probably working against your very own weight-loss efforts.

His solution – and he quotes several experts to back it up – is that you should watch what you eat as the central core of your weight loss efforts, and he proceeds to caution the reader that ‘fiery spurts of vigorous exercise can lead to weight gain.

Predictably, this article caused a huge controversy, when it was first published in August 2009, attracting widespread condemnation from Fitness professionals all around the world, and triggering a raging debate in the global wellness community, dwelling on what the New York Times described as one of the most intriguing and vexing issue in physiology – Can Exercise Make You Thin?

Above the blaring cacophony of competing ‘expert’ opinions, a plausible answer to this question is to be found in the most befitting arena of all – the London 2012 Olympics.  Thanks to the British love for tabloid news, the media has been a buzz with the most trivial details of the games as well as the athletes themselves.  For instance, we got to learn about the dietary habits of some of the world’s most illustrious athletes, and boy! They are not exactly what you would expect from athletes of this caliber!

Michael Phelps the American swimming sensation, who made history at the London Games, becoming the most decorated Olympian of all time, with a total of 22 medals, 18 of them gold, not surprisingly eats like a horse. What is surprising is the amount of junk food the guy packs away on a daily basis – 3 fried egg sandwiches, choc chip pancakes, a 5- egg omelet, French toast and grits – just for breakfast. Phelps also consumes a whole kilogram (yes, a whole Kg!) of pasta everyday, plus ham and cheese sandwiches, pizza all chased down by a couple of liters of soda…and the guy is still as lean as a cheetah!

At a whooping 8,000 calories a day, Michael Phelps is taking in almost 4 times the recommended average calories for a male adult and yet he is still as lean as they come. There couldn’t be a better answer than this to the question – Can Exercise Make You Thin? Michael Phelps is living proof that Exercise Can Make You Thin, even if you must, like he does, train for up to 5 hours a day. Now that he is retired, one thing that is certain from this point forward is that even the great Michael Phelps, can gain weight, if he continues to eat like this, without a maintaining a commensurate level of exercise.

The fact of the matter is that neither extreme is sustainable. When you lose weight exclusively though calorie restrictive diets, the weight loss is indiscriminate and your body readily cannibalizes it own muscle tissue to bridge the calorie deficit. The result therefore is that as you lose weight, you also muscle mass which as you well know is the metabolic engine of the body and you further weaken key bodily organs and structures including your heart as well as your bones. Constant dieting for her demanding movie roles is believed to be one of the reasons why actress Gwyneth Paltrow was diagnosed with the degenerative bone disease osteopenia, a precursor to osteoarthritis – at the age of just 37!  Not to mention that the very moment you begin to eat normally again, you will rapidly gain back all the weight you have lost.

On the flip side, even if you exercise plenty, but eat too much junk; you are still not immune to the effects of lifestyle diseases such as diabetes, or the cumulative effects of over consumption of highly processed food, which while high in calorie value is utterly devoid of any real nutritional value. In the long run you will end up malnourished and probably obese, when work or family gets in the way of your exercise habit.

In my book, the most effective and sustainable approach to weight loss lies in finding balance between the two. You don’t have to subsist exclusively on vegetables and mineral water in order to lose weight and be healthy, but you mustn’t imagine that a single hours worth of gym 3 times a week gives you the carte blanche to eat anything you please – because it doesn’t! You have got to ‘eat better and move more’ if you hope to get thin and stay that way for a lifetime!

Have a balanced week will you!

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