The safety of benzoic and ascorbic acids as ingredients in soft drinks has not been heared . A Lagos High Court in a recent judgement directed the National Agency for Food Drug Administration and Control (NAFDAC) to mandate the Nigeria Bottling Company (NBC) to include a warning on its bottles of Fanta and Sprite that its contents cannot be taken with Vitamin C as same become poisonous if taken with Vitamin C.
This was due to the fact that the products contain the preservative, benzoic acid. However, the NBC has since appealed this order. However, the Lagos High Court dismissed all claims against NBC and held that the company had not breached its duty of care to consumers and that there was no proven case of negligence against it.
Also, several studies including the International Agency for Research on Cancer (IARC) of the World Health Organisation (WHO) have confirmed that soft drinks containing a mixture of the salt of benzoic acid, sodium benzoate and vitamin C can cause other chronic conditions & cancer.