The City of Windhoek says informal kapana traders and consumers could be affected by FMD restrictions.
Its spokesperson, Lydia Amutenya, says the measures announced by the Directorate of Veterinary Services are expected to affect the availability of meat used by kapana businesses.
Kapana operators rely primarily on beef for their business.
The veterinary notice places an immediate halt on the slaughter of cloven-hoofed animals at export and local abattoirs, informal markets and social events.
The restrictions could disrupt the daily operations of informal traders, many of whom depend on the sale of grilled beef to earn an income.
Consumers may also face reduced meat supplies or higher prices if the restrictions continue.
Amutenya says the municipality will also engage relevant authorities on the impact of the restrictions on kapana businesses.
The measures remain in force until further notice as veterinary authorities intensify surveillance and work to contain the FMD outbreak.
Meanwhile, there was panic buying at butcheries and meat seller outlets.
Scenes captured show long queues while some shelves were literally becoming empty by noon.