Junk Food Portion Sizes are Increasing, So Are Waistlines

Junk Food Portion Sizes are Increasing, So Are Waistlines

Pizza Portion Sizes Image Credit: GeorgeInstitute.org

This year, The George Institute for Global Health in conjunction with its clinical research division, George Clinical posted the findings of an ongoing research project into the junk food portion sizes in Australia. The results showed that Australians are eating increasingly larger portion sizes of these types of foods filled with fats, sugars, and salt. Junk food should be eaten in moderation, but instead, growing portion sizes are causing waistlines to grow as well.

About the Research Study

Junk Food Portion Sizes are Increasing, So Are Waistlines

Junk Food Portion Size Chart Image Credit: GeorgeInstitute.org

Researches used data from 1995 through 2012 and compared portion sizes. They found that a large percentage of the most common junk foods in Australia were being consumed in significantly bigger portion sizes. The worst offenders with the most increase in portion size were pizza and cake. Here is a breakdown of the junk foods and beverages that increased in portion sizes.

  • Pizza portion size increased 66%
  • Cake portion size increased 66%
  • Ice cream portion size increased 39%
  • Wine portion size increased 36%
  • Sausage portion size increased 29%
  • Processed meat portion size increased 29%
  • Cereal bar portion size increased 24%
  • Chocolate portion size increased 17%
  • Beet portion size increased 13%
  • Biscuit portion size increased 3%
  • Pastry portion size increased 2%

It should be noted that during the study a few junk foods and beverages did decrease in portion size. Those junk foods and beverages that decreased in portion size were:

  • Potato fries decreased in portion size -40%
  • Snack food decreased in portion size -15%
  • Pastry decreased in portion size -10%
  • SSB (sugar sweetened beverages) decreased in portion size -2%

The researchers explained that these findings are particularly disturbing because discretionary foods contribute to about a third of Australia’s daily energy intake. Dr. Miaobing Zheng from The George Institute for Global Health was a research fellow for this study and is quoted as saying, “We had expected portion sizes to have grown but we were still surprised by just how much. It’s pretty disturbing that an average slice of cake has increased in size so much it now contains almost 1000 kilojoules more than it did two decades ago.“

Related Link: Current State of Obesity in the United States

The research team examined data from two different Australia-wide surveys:

  1. The 1995 National Nutrition Survey
  2. The 2011 – 2012 National Nutrition Physical Activity Survey

The participants in these surveys were asked to record and self report everything they had eaten in a 24 hour period and were given photos and measuring guides so that there would be accuracy in the measurements and sizes reported. The data also recorded demographics including ages and sex. This highlighted some disparity between men’s and women’s eating habits.  For example, they discovered that ice cream serving sizes increased by almost ⅓ for women, but not for men.

Dr. Zheng also adds, “We know that people often under report the amount of food and drink they consume, especially if they consider them ‘bad’ foods. So the true picture of what Australians are eating could be much worse.” The study co-author was Beth Meertens, of The Heart Foundation; she says, “There has been some success in this area, but there’s lots of work to do. We need the community to understand how portion size may influence the amount of food they eat, and to think carefully about how they choose their food portions. But, more importantly, we need an environment which supports and encourages those choices. We need to work with the food industry to reduce the size of the products which have increased over time, and increase the portions of healthy foods.

The study’s researchers concluded that the industry and Australians should be empowered with this information to improve upon portion sizes for unhealthy foods.

About George Clinical

In 2007, The George Institute for Global Health launched George Clinical, a leading contract research organisation (CRO) in Asia. George Clinical is the first and largest commercial enterprise from the institute. George Clinical is headquartered in Sydney, Australia but has operational hubs in ten other countries. George Clinical delivers the full-range of clinical trial services across all trial phases and in a variety of therapeutic specializations. George Clinical has contributed directly to several landmark clinical trials, the results of which have changed clinical practice. In addition to testing medications, a large part of their clinical research studies are about food and how unhealthy food intake negatively affects overall health and how that impacts cardiovascular health, diabetes, and stroke in patients around the world.

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