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Do most commercial food products for kids provide poor nutrition?

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Eighty-nine percent of children's food products provide poor nutritional quality, but 62 percent of them still make health claims on the packaging, says a 2008 study, "Assessing 'fun foods': nutritional content and analysis of supermarket foods targeted at children," published in the journal Obesity Reviews, July 2008. (E-published October 24, 2007). The author is Professor Charlene Elliot, University of Calgary.

Nine out of ten regular food items aimed specifically at children have a poor nutritional content – because of high levels of sugar, fat or sodium - according to that detailed study of 367 products published in the July 2008 issue of the UK-based journal Obesity Reviews, Wiley-Blackwell. You may wish to check out the abstract of the study. The researchers found that just under 70 per cent of the products studied - which specifically excluded confectionery, soft drinks and bakery items - derived a high proportion of calories from sugar.

Approximately one in five (23 per cent) had high fat levels and 17 per cent had high sodium levels

Despite this, 62 per cent of the foods with poor nutritional quality (PNQ) made positive claims about their nutritional value on the front of the packet. "Children's foods can now be found in virtually every section of the supermarket and are available for every eating experience" says Professor Charlene Elliott from the University of Calgary, Canada, and a Trustee of the Canadian Council of Food and Nutrition, according to a July 14, 2008 news release, 89 percent of children's food products provide poor nutritional quality.

"Parents may have questions about which packaged foods are good for their children. Yet certain nutritional claims may add to the confusion, as they can mislead people into thinking the whole product is nutritious."

Only 11 per cent of the products Professor Elliott and her colleagues evaluated provided good nutritional value in line with the criteria laid down by the US-based Center for Science in the Public Interest (CSPI), a non-profit agency that received the Food and Drug Administration's highest honor in 2007.

The CSPI nutritional standards state that healthy food should not derive more than 35 per cent of its calories from fat (excluding nuts and seed and nut butters) and should have no more than 35 per cent added sugar by weight. They also provide guidance on sodium levels, ranging from 230mg per portion for snacks through to 770mg per portion for pre-prepared meals.

CSPI's standards are adapted from those developed by the National Alliance for Nutrition and Activity, a coalition of some 300 health and nutrition organizations in the USA. The organization states that its standards represent a compromise approach. They allow for the marketing of products that may not be nutritionally ideal, but that provide some positive nutritional benefits that could help children meet the US Government's Dietary Guidelines for Americans.

The 367 products included in the study were bought from a national supermarket chain stocking 50,000 food and non-food items in December 2005

Each had to meet very specific criteria. "We included food products and packaging that were presented in such a way that children were the clear target audience" explains Professor Elliott, according to the news release. Elliot's research was funded by the Canadian Institutes of Health Research.

"They included products that promoted fun and play, had a cartoon image on the front of the box or were linked to children's films, TV programs and merchandise." Each product was subjected to a 36-point analysis that included the nutritional content and how the packaging was designed to appeal to children and their parents.

Key findings included:

  • 63 per cent of all the products surveyed made some sort of nutritional claim, including 62 per of the products that could be classed as poorly nutritious, due to high levels of sugar or fat or sodium. A low percentage (eight per cent) carried some kind of nutrition mark or seal. Other claims included that products were low fat, a source of calcium, contained no artificial flavors or colors or provided a number of essential nutrients.
  • Products with high sugar levels accounted for 70 per cent of the goods with PNQ. Despite this, 68 per cent included some sort of nutritional claim on the package, such as a source of whole grains, source of iron or low in fat. Cereals and fruit snacks were particularly likely to make nutritional claims and have high levels of sugar.
  • Just under 23 per cent of the products had PNQ because of their high fat content. Yet 37 per cent had some sort of nutritional claim on the package. For example peanut butter mixed with chocolate claimed to be a "source of six essential nutrients" and a pizza product claimed to be a "source of calcium."
  • High sodium levels meant that 17 per cent of the products analyzed were classified as being of PNQ. Despite this, almost 34 per cent made some sort of nutritional claim on the package. Crackers and pizza products were among the worst offenders.
  • A fifth of the products featured a cartoon image engaged in some sort of healthy physical activity on the front and a quarter showed these on the back or side of the box. Activities included skateboarding, basketball and biking.

"Assessing the levels of sugar in the selected food products was a methodological challenge, because milk sugars and fruit sugars occur naturally in foods" says Professor Elliott, according to the news release. "The Nutrition Facts label only displays total sugars and the quantity of added sugars is not always provided by the manufacturer. "This means that the percentage of foods categorized as poorly nutritious due to high levels of sugar is higher than it would have been if information on naturally occurring sugars had been available."

The problem of accurately separating figures for quantities of natural and added sugars in manufactured products has also been encountered by other researchers and acknowledged as an issue by CSPI, so it is not unique to this study

"Despite this, the findings still give us cause for concern" says Professor Elliott, according to the news release. "While caregivers are likely to purchase products that they hope their children will like, it clearly can result in a less nutritious diet than they may realize. Having a healthy diet is especially important given the current rates of childhood obesity."

Excess body weight affects up to 35 per cent of children across Canada, the United States and Europe and is linked to a range of health problems including type 2 diabetes, high blood pressure, heart disease and some forms of cancer. Overweight children can also suffer from psychological and social consequences because of their weight. Professor Elliott believes that policy attention needs to be directed towards the nutritional claims made by products aimed at children and the images they use to sell the products.

"If a parent sees a product that makes specific nutritional claims, they may assume that the whole product is nutritious and our study has shown that that is definitely not true in the vast majority of cases" concludes Professor Elliott, according to the news release. "Using cartoon characters engaged in sport can also create the illusion of a healthy product."

Obesity Reviews is a bi-monthly publication that includes papers from all disciplines related to obesity. The official review journal of the International Association for the Study of Obesity, it is published by Wiley-Blackwell and has a 2007 impact factor of 7.821.

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