In a statement, officials said the decision was taken following laboratory tests that confirmed the presence of aflatoxins beyond the acceptable limits.
Aflatoxins are toxic substances produced by certain fungi and are known to pose serious health risks when consumed over time.
The government warned that prolonged exposure to aflatoxins can lead to severe health complications, including liver damage and an increased risk of cancer.
It urged members of the public to avoid consuming the affected products and to remain vigilant when purchasing food items.
“All manufacturers and distributors of the listed peanut butter brands must immediately stop production and sale.
County authorities are directed to ensure strict compliance with this order,” the statement said.
County officials have been tasked with inspecting retail outlets, supermarkets and distribution points to remove the affected products from shelves.
They are also expected to work closely with public health officers to monitor adherence to food safety standards.
The directive comes amid heightened scrutiny of food safety in the country, with regulators stepping up surveillance to protect consumers from contaminated products.
Authorities said the move is part of ongoing efforts to ensure that all food items in the market meet required safety standards.
Manufacturers of the affected brands are expected to cooperate with regulators and take corrective measures, including reviewing their sourcing, storage and production processes.
They may also be required to conduct further testing before resuming operations.
The government has further advised consumers who may have purchased the products to dispose of them or return them to the point of purchase where possible.
Retailers have been warned against continuing to sell the affected brands, with enforcement measures set to be applied against those who fail to comply.
Public health experts have welcomed the move, noting that aflatoxin contamination has long been a concern, particularly in products derived from groundnuts.
They emphasised the importance of proper handling, storage and processing to prevent fungal growth and toxin production.