Kind and balance of breakfast cereals
Some breakfast cereals are marketed as generic brands (eg, store brands) and may be perceived as being less nutritious than those marketed under dedicated commercial brands. Breakfast cereals may also target particular populations, such as children, for reasons other than nutrition or health. Thus, it is of interest to test whether cereals so grouped inform about overall nutritional balance (BNI). This way, a consumer may rely on any significant grouping for choosing more balanced breakfast cereals. This article summarizes research done in this regards (for more detail see Perezgonzalez, 2012b3).
Illustration 1 collates statistical information for both groups of breakfast cereals (either whether they are targeted to children or not, and whether they are generic brands or not): group medians, tests for equality of independent rank distributions (Mann-Whitney U, used to assess group differences), correlations of each claim with the BNI (Spearman's rho), and regression coefficients of each claim on the BNI4.
|Illustration 1: Medians, Mann-Whitney U tests, and correlation and regression coefficientes per group|
|Kind||Md 'no'||Md 'yes'||U||rho||β||R|
|(Dependent variable = BNI. Medians closer to 0.0 indicate greater balance. * p ≤ .05. Sig ≤ .05, 2-tailed)|
According to above results, it can be concluded that:
- Cereals targeted to children have a BNI distribution significantly higher (median = 72.65; U = 318, p ≤ .05) than other cereals (median = 37.27). Simply avoiding breakfast cereals for children could help choose about 23% of more nutritionally balanced products in the sample (rho, R), and about 20% of those cereals in the population (Adj.R).
- Breakfast cereals sold under generic brands are not significantly different from those sold under dedicated commercial brands.
Jose D PEREZGONZALEZ (2012). Massey University, Turitea Campus, Private Bag 11-222, Palmerston North 4442, New Zealand. (JDPerezgonzalez).
Want to know more?
- BNI™ journal (2012, issue 3) - Breakfast cereals
- This issue of the Balanced Nutrition Index™ journal collates all BNI™ nutrition information for the original sample in a single book. You can also access information about each individual breakfast cereal on the BNI™ database and aggregated information on Wiki of Science (nutritional balance of food)
- Wiki of Science - Nutrition claims and balance of breakfast cereals
- Two Wiki of Science pages provide summary and detailed information about a related research, focused on nutritional and health claims.
- Wiki of Science - The nutritional balance of kinds of breakfast cereals
- This page provides detailed statistical analyses of the research summarised in this article.