It has come to light that some palm oil products available on the market may contain hazardous substances known as Sudan dyes. The Food and Drugs Authority (FDA) has issued a caution to consumers to exercise extra care when purchasing palm oil.
This dye, which has been banned for use in food products, poses health risks to consumers due to its harmful properties.
Sudan dyes, specifically Sudan III and IV, are illegal food colorants known for their potential health risks. They are primarily used in industrial applications, such as coloring plastics and textiles, but some producers have resorted to using these dyes to enhance the color of palm oil, which is often a result of poor-quality raw materials and production practices. The use of these dyes is particularly problematic in developing countries, where regulatory enforcement may be weaker.

Studies have confirmed the presence of Sudan IV in palm oil samples, with a significant percentage of products testing positive for adulteration. A study conducted in Ghana found that 60% of palm oil samples from supermarkets contained Sudan IV dye. This highlights a pressing need for stringent monitoring and regulation to protect public health.
As part of the Food and Drugs Authority’s (FDA) routine market surveillance activities on food safety in 2021, about 30% of palm oil found in the Ghanaian market failed the Authority’s nationwide Zero Sudan IV dye test, an increase from 7.3% in 2018.
This warning comes in light of the FDA’s ongoing efforts to address hazardous substances, particularly the notorious ‘Sudan Four’ dye, which has been detected in some palm oil products on the market.
Roderick Daddey-Adjei, Deputy Chief Executive Officer of the FDA, expressed deep concern over the persistence of this issue, despite the Authority’s rigorous enforcement actions.
He acknowledged the progress in reducing the prevalence of adulterated palm oil but emphasized that even a small percentage of contamination is unacceptable.
“But we are still not happy about that small percentage that is there, which means that people who perpetrated the activity are still lurking in the dark. And we also want to let those who think that they can come back and keep on doing this, that their days are numbered. Because already with this one that we even did, we did some arrests, we have handed them over to the police.”