A glass of freshly squeezed orange juice is often regarded as the picture of healthy living. But for former Vice President Yemi Osinbajo, what appeared to be a wholesome daily routine for his wife, Dolapo, became an unsettling discovery about the safety of food sold in Nigerian markets.
Speaking at the Open Day of the Gardeners’ Seminar, themed “Leaving the Earth Better Than We Found It,” in Lagos on August 28, Osinbajo revealed that laboratory testing had found his wife’s freshly squeezed orange juice unfit for human consumption.
A video of the event, later published on Osinbajo’s YouTube channel, attracted widespread attention online.
Osinbajo said his wife had given up carbonated drinks years earlier and instead adopted a habit of drinking fresh orange juice every day. Despite what appeared to be a healthier lifestyle choice, she began experiencing unexplained headaches.
“She would look at my own Coke drinking habits with a lot of disapproval,” Osinbajo recalled, explaining that his wife initially had no reason to suspect the juice.
After examining other aspects of her diet and routine without finding an obvious explanation, the family decided to have a batch of the orange juice tested in a laboratory.
The result, according to Osinbajo, was alarming.
The laboratory found that the freshly squeezed juice was not fit for human consumption.
For Osinbajo, the incident was not simply a family health scare. He said it pointed to a much broader food-safety problem involving the treatment, preservation and handling of fruits and vegetables before they reach consumers.
Osinbajo raised concerns about the use of potentially dangerous chemicals by farmers, fruit sellers and other traders to accelerate ripening, preserve produce or improve its appearance.
He particularly highlighted calcium carbide, a chemical that has been associated with the artificial ripening of fruits such as bananas and mangoes.
He cited studies suggesting that the practice is widespread. According to the figures he referenced, a 2024 study found that half of 20 fruit sellers interviewed admitted using calcium carbide, while another study reported usage among 25 per cent of sellers surveyed.
He also referred to a 2023 survey of 50 fruit and vegetable retailers in Lagos, in which 22 respondents — more than half — reportedly admitted using chemicals to preserve their produce.
Osinbajo said substances mentioned in the studies included calcium carbide, Gamma-Lin-20, Sniper and phosphite, describing some of them as highly toxic.
The former vice president warned that the danger may not always be visible to consumers.
The central message of Osinbajo’s warning was simple but unsettling: appearance cannot guarantee food safety.
A fruit can look colourful, ripe and attractive while having been subjected to unsafe treatment somewhere along the supply chain.
The same concern, he argued, applies to products that appear naturally healthy.
For consumers, the implication is significant. The journey from farm to table can involve several stages — harvesting, transportation, storage, ripening, preservation, retail and preparation — creating multiple opportunities for unsafe substances or practices to enter the food chain.
Osinbajo called for stronger regulation and enforcement, as well as greater public awareness.
He also urged consumers to be more vigilant, question questionable practices, inspect food products carefully and report suspicious activity to the appropriate authorities.
The remarks come amid growing public anxiety in Nigeria over counterfeit, adulterated and substandard consumer products.
Social media platforms have increasingly become channels through which consumers draw attention to suspected fake or adulterated foods, medicines and household products. Recent online concerns have included suspected counterfeit toothpaste, allegedly altered cooking oils, artificially coloured fruits and other products whose authenticity or safety has been questioned.
However, individual reports and viral social-media claims do not by themselves establish that a product is unsafe. Proper laboratory testing and regulatory investigation remain essential before such allegations can be confirmed.
The food-safety challenge nevertheless places renewed pressure on regulators, producers, farmers, retailers and consumers to ensure that food reaching Nigerian households is safe.
Osinbajo’s account of his wife’s orange juice serves as a reminder that the label “fresh,” “natural” or “healthy” is not, on its own, a guarantee of safety.
As Nigeria continues to grapple with concerns about food adulteration and unsafe agricultural practices, the larger question is no longer simply what is on the plate or in the glass — but what happened to it before it got there.
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