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Can Video Games Make You Eat Too Much?

sharma-obesity-videogame-pacmanGenerally, TV viewing and playing video games are blamed for weight gain because of their sedentary nature (as opposed to more active recreational activities).

However, as has been argued before, the key impact of TV viewing and video gaming on body weight may well lie in their effect on food intake.

An elegant randomised controlled trial by Jason Gan and colleagues, published in APPETITE shows that vide0 gaming can lead to an increased intake of foods, particularly sweets.

The study involved 72 overweight/obese adult males, divided into three equal groups, randomised either to one hour of (i) watching TV; or playing (ii) a non-violent video game; or (iii) a violent video game.

This was followed by a 25 minute rest period with free access to a selection of sweet and savoury snacks/drinks. D

Heart rate, blood pressure, and stress measured by visual analogue scale (VAS)) were all significantly higher when playing video games compared to watching TV.

This increase in stress levels was associated with a 170 higher caloric intake and a preference for sweets and fatty foods in the video game group compared to the TV watchers.

In addition, the violent video games led to even higher stress levels with an even stronger preference for sweet foods.

Thus, the authors conclude that, compared to TV viewing, playing video games (especially violent ones) is associated with a stress response, and increased calorie intake.

This phenomenon may well confound previous findings that show associations between playing video games and weight gain, leading to the assumption that it is the sedentariness of video gaming that promotes weight gain, when it fact it may well be the associated impact on snacking.

Edmonton, AB


  1. Thanks Dr. Sharma

    So games are worse than TV, and TV itself is bad, we all know. In my case it is cuing off food advertisements that irritates and frustrates me. To shut it off would be better, but I do not live alone, and I seldom turn that idiot box on. We all have some choice, until less life gets in the way.

    I personally think cuing off food commercials is a bigger factor that is the exchange of movement for sitting, but that is just opinion.

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  2. Interesting as I have come to the conclusion for myself that the higher the stress in a tv show the more I ate! Crime shows that pissed me off espessially!

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  3. To me, those categories are flawed given their hypothesis and conclusions. If the type of video game matters then shouldn’t the type of tv show matter too?

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