Junk diet makes you fat in just seven days

A new study has revealed that a junk food diet can damage your body in just a single week.

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In the study, six men were fed 6,000 calories a day of pizza, burgers and other junk food and it took only two days for their bodies to show signs of serious diseases, The Mirror reports.

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Out of the six men, three men were normal weight, three were overweight and none were obese or unhealthy.

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Throughout the study all the participants were on bed rest and in a week, they had gained an average of 3.5kg and started showing signs of insulin resistance.

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Researchers found that insulin ­resistance was a key component to type-2 diabetes.

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Guenther Boden of Temple University School of Medicine in Philadelphia said their aim was to recreate the 'average American' diet and find out how it can lead to Type 2 diabetes.

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Boden said that it was a regular-American diet, composed of pizzas, hamburgers and that sort of thing.

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During the study, men gained an average of 3.5 kg and showed signs of insulin resistance as well as oxidative stress.