Eight years after the introduction of the sugar tax on sugary beverages, its effectiveness has diminished, prompting researchers to advocate for a substantial increase. This shift is attributed to inflation and changes in product marketing strategies.
Recent studies conducted by experts from the Technological University of the Shannon (TUS), University of Limerick (UL), and University College Dublin (UCD) reveal that sugary soft drinks are often priced the same as or even lower than their sugar-free counterparts.
The sugar tax varies from 5 to 24 cents, depending on the sugar concentration per 100ml in a beverage. It affects cans, bottles, and litre containers of soft drinks, plant-based drinks, and beverages containing milk fats.
The research team observed that while the sugar tax had a positive impact upon its introduction in May 2018, its effects have since been “undermined”.
Frank Houghton, the principal investigator at the HEALR research group at TUS, commented: “The sugar tax was modest when it was enacted, and due to inflation, it has now become negligible.”
He emphasized, “A significant increase in the sugar tax is necessary, along with an indexing mechanism and an earlier implementation.”
Currently, the tax thresholds are set at 5g and 8g of sugar per 100ml. The researchers recommend lowering these limits to 2.5g per 100ml over the next decade to enhance the tax’s impact.
Their findings indicate that many soft drink brands, such as Pepsi, 7Up, Fanta, and Club Orange, have adjusted their formulations to contain less than 5g of sugar per 100ml. In contrast, Coca-Cola still contains 10.6g of sugar per 100ml.
Mr. Houghton raised concerns regarding the increasing size of beverage containers. Their data shows a trend where smaller 330ml cans are being replaced by larger 500ml cans and bottles in many convenience stores and gas stations.
The research identifies several factors limiting the tax’s effectiveness, including inflation erosion, supersizing, inconsistent pricing, lack of visibility, and a narrow scope.
They recommend implementing a mandatory sugar tax logo on drink containers and noted the rarity of seeing sugar tax information on menus, suggesting that consumers are becoming less aware of the additional costs associated with these beverages.
Jeremy Auerbach, an assistant professor in the School of Geography at UCD, expressed concerns over the allocation of revenue generated by the sugar tax.
According to Revenue, the tax brings in about €30 million annually. Mr. Auerbach advocates for this revenue to be earmarked for health initiatives, including obesity treatment and community nutrition programs.
“These efforts will improve health outcomes, strengthen community resilience, and foster integration,” he added, referring to the World Health Organization’s endorsement of sugar taxes as beneficial for public health.
A spokesperson from the Department of Health mentioned that an evaluation planned for 2024 indicated that sugar consumption from carbonated drinks has decreased since the tax’s implementation.
This evaluation highlighted a reduction in both the volume of sugary drinks consumed and the overall sugar content, along with a decline in annual revenue from the tax.
In response to the calls for reform, the spokesperson stated, “Any future adjustments to the structure or content of the sugar-sweetened beverages tax will be evaluated as part of a new obesity strategy currently under development and expected to be released this year.”
The spokesperson acknowledged the reformulation occurring within the industry, noting that “four out of five leading soft drink brands now fall outside the tax entirely.”
In summary, while the sugar tax initially succeeded in reducing sugar consumption in beverages, its impact has waned over time due to inflation and market changes. Experts are advocating for a reassessment of its structure and implementation to regain its effectiveness in promoting healthier choices among consumers.
