Foods carrying a healthy halo are increasingly under scrutiny as the New Zealand Dental Association warns that products commonly packed into school lunchboxes can contain considerably more sugar than parents realise.
Flavoured yoghurt, muesli bars and breakfast cereals are among the everyday products highlighted by the NZDA, which said sugar often appears under less familiar names on ingredient lists despite products being positioned as better-for-you choices.
The issue is significant given nearly 42 percent of New Zealand five-year-olds have experienced tooth decay, a figure the association said had changed little in two decades.
NZDA Chief Executive Dr Mo Amso said parents needed to look beyond the obvious sources of sugar.
“It’s not just lollies and fizzy drinks. Sugar shows up under names like sucrose, glucose and corn syrup on labels for foods that look like healthy choices,” said Amso.
“Teaching kids to spot it early is one of the simplest ways to protect their teeth for life.”
As National Oral Health Month comes to an end, NZDA is taking the issue into classrooms through its Sugar Detective programme, encouraging students to identify hidden sugar in commonly consumed foods and drinks.
NZDA-Colgate Oral Health Promotion Manager Anishma Ram said ingredient lists provided a more useful guide than claims made on the front of a pack.
“Check the ingredients list, not the front of the pack. If sugar is one of the first three ingredients or shows up more than once under a different name, it’s a sugar-heavy food no matter how it’s marketed,” said Ram.
She said replacing even one higher-sugar product each week with alternatives such as plain yoghurt, fruit or water could make a difference over time.
For food manufacturers and retailers, the wider issue is not simply whether a product contains sugar, but how products positioned around health, family and lunchbox occasions are formulated and marketed.
That scrutiny is likely to increase. NZDA has continued to push for stronger intervention around sugary drinks, which it identified as the largest source of added sugar in New Zealand children’s diets. Its proposals include sugar icon labelling showing teaspoon equivalents, tighter restrictions on marketing to children and water-only policies in schools.
Amso said education programmes alone would not materially shift oral health outcomes without broader policy intervention.
“Tooth decay is largely preventable, yet it remains one of the most common chronic diseases in New Zealand,” said Amso.
“Reducing sugar consumption must be a central priority for national health policy.”
NZDA’s Oral Health Roadmap calls for stronger regulation of sugar in food and beverages, including a tax on sugar-sweetened drinks in line with World Health Organisation guidance.
According to NZDA, at least 116 countries had introduced a sugar-sweetened beverage tax by 2024, while health economists have estimated that a 10 percent increase in price can reduce consumption by about 12 percent.
“We know a sugar tax works overseas; the evidence is there,” said Amso.
With an election approaching, NZDA is calling on political parties to consider a sugary drinks tax, a national sugar-reduction strategy and healthier food environments in schools and communities.
For brands competing in the family and lunchbox market, that policy pressure sits alongside a more immediate challenge: health positioning is becoming harder to separate from what is actually in the ingredient list.
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