New Zealand's ultra-processed food crisis deepens as health risks surge

Ultra-processed foods (UPFs) now make up a growing share of diets worldwide, raising concerns over health and environmental impacts. In New Zealand, these products account for nearly a quarter of all food and drink imports, up from just 9% in 1990. Experts warn that high consumption is linked to serious illnesses, yet the country has not tracked national nutrition data since 2008.

UPFs first appeared around 70 years ago, originally designed as military rations before spreading globally. Today, they dominate supermarket shelves, with about 70% of packaged foods in New Zealand falling into this category. These products—ranging from soft drinks and crisps to ready meals—are typically high in calories, sugars, salt, and fats, while containing additives like flavours, colours, and emulsifiers.

Research ties heavy UPF consumption to obesity, type 2 diabetes, heart disease, and even depression. In New Zealand, unhealthy diets and excess weight contribute to 18% of premature deaths and disabilities. Despite the risks, the country has yet to adopt key policies like sugar taxes, advertising bans, or mandatory nutrition labels—measures proven effective elsewhere. The environmental toll of UPFs is also significant. Their production relies on plastic packaging, high water use, and energy-intensive processes. While the World Health Organization (WHO) is drafting global guidelines to curb UPF intake, New Zealand's lack of recent nutrition surveys leaves gaps in understanding the full scale of the problem. Other nations have taken action, such as taxing sugary drinks or restricting junk food ads aimed at children. But in New Zealand, successive governments have delayed implementing similar regulations, leaving food environments heavily influenced by ultra-processed options.

With UPFs likely supplying around half of New Zealanders' energy intake, the health and environmental consequences are becoming harder to ignore. The WHO's upcoming guidelines may push policymakers to act, but for now, the country's reliance on these foods continues unchecked. Without stronger regulations, the risks to public health and sustainability are set to grow.