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Lifestyle Health and Wellbeing 25 Feb 2016 First 5 per cent of ...

First 5 per cent of weight loss has the greatest benefits

DECCAN CHRONICLE
Published Feb 25, 2016, 12:04 am IST
Updated Feb 25, 2016, 7:04 am IST
Here’s what you need to know if you’ve been trying to lose weight.
Researchers in the US say that losing just 5 per cent of your body weight is all it takes to see major health benefits in obese people.  (Representational image)
 Researchers in the US say that losing just 5 per cent of your body weight is all it takes to see major health benefits in obese people. (Representational image)

If you’re struggling with obesity, it might feel sometimes like you have to radically overhaul your entire body and lose all your excess weight to get healthier, but that’s not the case at all, according to a new study.

Researchers in the US say that losing just 5 per cent of your body weight is all it takes to see major health benefits in obese people. Hitting that smaller and more achievable-seeming target provides significant improvements to metabolic health and opens up the possibility of continued weight loss to boot.

 

“Our findings demonstrate that you get the biggest bang for your buck with 5 per cent weight loss,” said Samuel Klein, director of Washington University’s Centre for Human Nutrition. “The current guidelines for treating obesity recommend a 5 to 10 per cent weight loss, but losing 5 per cent of your body weight is much easier than losing 10 per cent. So it may make sense for patients to aim at the easier target.”

To measure the impact of losing tiered percentages of weight, researchers randomly assigned 40 obese individuals — none of whom had diabetes — different weight loss goals. Half the group was instructed to maintain their body weight, while the other half were asked to lose five, 10, or 15 per cent of it. Of the 20 participants tasked with losing weight, 19 succeeded in losing five per cent of their body weight. At this point, the researchers noted that the functioning of the participants’ insulin-secreting beta cells had improved, as had insulin sensitivity in fat, liver, and skeletal muscle tissue — lowering their risk for diabetes and cardiovascular disease. Total body fat had decreased, and fat in the liver was reduced also.

 

Nine of those 19 participants continued to diet after dropping five per cent of their body weight, with all of these individuals eventually succeeding in passing 10 per cent and then reaching 15 per cent body weight loss.

While this sub-group saw increased health benefits for their additional effort — including improvements in beta cell function and insulin sensitivity in muscle tissue — the gains were relatively minor compared to the 5 per cent markers.

“Continued weight loss is good, but not all organ systems respond the same way,” said Klein. “Muscle tissue responds much more to continued weight loss, but liver and adipose tissue have pretty much achieved their maximum benefit at 5 per cent weight loss.”

 

“If you weigh 90 kg, you will be doing yourself a favour if you can lose 4.5 kg and keep it off,” said Klein. “You don’t have to lose 22.6 kg to get important health benefits.”

Source: www.sciencealert.com

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