Why sugar taxes alone won’t solve the Caribbean’s chronic disease crisis

Non-communicable diseases – long term illnesses such as heart disease, cancer and diabetes – are now the leading cause of death in the Caribbean. They account for more than three-quarters of all deaths in the region, with many people dying before the age of 70. Governments are under pressure to act.

In Jamaica, recent fiscal proposals seek to increase taxes on alcohol and sugar-sweetened beverages in an effort to curb rising rates of chronic disease – an agenda endorsed by the World Health Assembly and echoed by regional public health authorities. The underlying logic is straightforward: higher prices reduce demand.

But price-based policy does not operate in isolation. As Keithlin Caroo-Afrifa, Founding and Managing Director of Helen’s Daughters, has observed, governments often respond to hurricanes and floods by dispatching barrels and hampers laden with sugary drinks and sodium-heavy staples. In so doing, they entrench the very vulnerabilities they claim to alleviate, deepening food insecurity, compounding poverty, aggravating chronic illness and amplifying susceptibility to climate shocks.

The question, then, is not whether higher taxes work in theory, but whether they are designed for the Caribbean’s economic and social realities.

The case for raising prices

The World Health Organisation’s approach assumes that increasing taxes will make alcohol and sugar-sweetened beverages more expensive and therefore less attractive to the consumer, prompting them to reduce consumption or substitute with healthier options. But that assumption must be tested against country-specific realities. Are people continually buying sugary drinks solely because of the price? Or are habit, culture, convenience and limited alternatives just as influential?

The effectiveness of taxation depends on how responsive consumers are to price adjustments. In many Caribbean societies, sugary beverages are deeply embedded in social practices and daily life. Among lower-income groups with limited access to affordable substitutes, demand may exhibit relative inelasticity. Under such conditions, modest tax increases may generate revenue without proportionate reductions in consumption.

Decisions about food and drink are rarely made in ideal conditions. Behavioural research suggests they are shaped by limited income, time scarcity, stress and choice. For many Caribbean households, particularly those facing economic marginalisation, food and drink choices reflect what is affordable, available and immediate.

Encouragingly, some governments have recognised this and begun pairing fiscal disincentives with fiscal incentives. In Barbados, for example, additional products were placed in the zero-rated VAT basket, and duties on selected healthy goods have been explored. Such measures recognise that taxation alone will not be enough.

The limits of tax pass-through

The assumption that higher taxes will automatically reduce consumption must also be tested against regional market realities.

Sugary drinks are often produced and distributed through multinational networks with significant market power. This allows firms to absorb or dilute portions of the increase, limiting the extent to which prices rise for consumers. If prices rise only slightly, consumption may not fall in any meaningful way. The result could be increased government revenue without a corresponding reduction in harmful consumption.

Not only would that be counter-intuitive and cyclical, but the policy prescription may disproportionately affect lower socio-economic households, who are more likely to rely on purchasing these inexpensive and convenient goods.

Enslavement to independence

Any serious public policy assessment must be grounded in the region’s historical experience of enslavement and plantation economies. Sugar was not simply a commodity produced in the Caribbean; it was the organising pillar of colonial society, shaping labour regimes, survival strategies, and cultural norms under conditions of coercion and deprivation.

Today’s widespread consumption of sugar-dense foods and drinks is because of the legacies of an economic system that normalised sugar as an accessible source of energy for an enslaved and later economically marginalised population. Contemporary public health challenges such as diabetes and other non-communicable diseases are better understood as structural legacies of colonial extraction.

If consumption patterns are rooted in centuries of economic organisation and inequality, then adjusting prices alone may be insufficient to transform them.

The cost of healthy substitutes

The success of taxation depends heavily on the availability of substitutes, which remain prohibitively expensive relative to sugar-sweetened beverages and ultra-processed foods. In many Caribbean states, structural dependence on food imports, limited domestic agricultural capacity and high transportation and energy costs mean that fresh produce, healthier drinks and minimally processed alternatives are often priced beyond the reach of lower-income households.

Sugary beverages, by contrast, benefit from economies of scale, aggressive marketing and long-established supply chains that keep prices artificially low. Policies that raise the price of unhealthy goods without reducing the cost of healthier alternatives risk narrowing consumer choice rather than expanding it. Complementary reforms that address food pricing, local production and affordability are critical.

Healthy choices under pressure

Even when alternatives exist, household realities shape what is actually chosen.

The demands of precarious employment, informal work and multiple income-generating activities produce a form of “time poverty” in which caregivers, particularly women, have limited capacity to plan, prepare, and consistently provide healthier meals for their children.

Strengthening food security through targeted investment in local agriculture must form a central pillar. Expanding domestic food production can reduce reliance on imported, processed foods while lowering the cost and improving the availability of healthier alternatives. By supporting small farmers, improving agricultural infrastructure, and integrating local produce into school feeding and community programmes, states can address health, employment, and resilience simultaneously.

Sustainable improvements in health outcomes are more likely to emerge from social investment than from punitive pricing mechanisms alone. Preventative spending on food systems, caregiving support and public health infrastructure addresses the root causes of unhealthy consumption rather than merely its symptoms.

The scale of the Caribbean’s chronic disease crisis demands decisive action. Taxation without complementary social policy risks not only being fiscally efficient, but socially ineffective. For fiscal measures to translate into meaningful health gains, they must be embedded within broader reforms that confront poverty, food insecurity and structural inequality.