Ghana’s diets are abundant in calories but dangerously poor in nutrition, according to a new World Bank and CSIR-Savanna report that warns urgent reforms are needed to protect public health and meet climate goals.
The study, authored by Francis Addeah Darko and Edward Martey, finds that while food supply stands at 135 percent of caloric adequacy, 63 percent of Ghanaians – about 21 million people – cannot afford a healthy diet. Plates are dominated by starchy staples at nearly three times the recommended levels, while fruit, vegetable and legume consumption is less than half what is advised. The result is a “triple burden of malnutrition”: undernutrition, obesity, and widespread micronutrient deficiencies.
The imbalance carries a heavy environmental toll. Ghana’s current diets generate 46 million metric tons of greenhouse gas emissions each year, well above sustainability benchmarks. Rising incomes are fuelling more meat consumption, and modelling shows that while a shift to plant-based proteins could cut emissions by 42 percent, a beef-heavy diet would more than triple them.
The report highlights the promise of the EAT-Lancet planetary health diet, which reduces emissions by 70 percent and cuts household food costs nearly in half compared with Ghana’s current dietary guidelines. By contrast, the country’s national guidance cannot simultaneously deliver on health, affordability, and sustainability.
To meet the challenge, the authors urge a new approach to dietary policy. Revisions to national guidelines must align with global sustainability goals while respecting cultural traditions. Food production should diversify beyond staples, backed by stronger storage and transport infrastructure. Social protection programmes, such as school feeding, need expansion to make healthy diets affordable, and nutrition education must be scaled up.
Since 2014, Ghana has broadened its food policies, launching a National Nutrition Policy, upgrading the School Feeding Programme, and introducing its first national dietary guidelines in 2023. Yet the study warns that implementation gaps and high costs remain formidable barriers. A healthy diet in Ghana averages $4.29 per day, higher than regional and global norms.
The report concludes that Ghana’s dietary transition will shape not only national health but also its climate trajectory. Without bold reforms, malnutrition and rising emissions will worsen. With the right policies, however, Ghana could emerge as a model for Africa in balancing nutrition, affordability, and sustainability.
Ghana’s Food Challenge at a Glance
- Calories vs. Nutrition: Food supply is 135% of adequacy, but 63% of Ghanaians cannot afford a healthy diet.
- Diet Imbalance: Staples consumed at 3× recommended levels; fruits, vegetables, legumes less than half.
- Triple Burden: Undernutrition, obesity, and micronutrient deficiencies co-exist.
- Climate Impact: Diets emit 46m metric tons CO₂ annually. Plant-based proteins could cut emissions by 42%. Beef would more than triple them.
- Affordability: A healthy diet costs $4.29 per person daily, above regional and global averages.
