Neither food regulatory authority nor mainstream media have reported on rat hair being found or added to every 100 grams of Cadbury.
Manufacturers in the U.S. follow a "Food Defect Levels Handbook," which stipulates the maximum number of alien entities, such as larvae and insect fragments, that can be present in food. But, some nations' regulations do not allow such exclusions. Food Safety and Standards Authority of India's guidelines specify that every chocolate should be free of insects and other contaminants.
Milk, sugar, cocoa butter, cocoa mass, vegetable fats (palm, shea), emulsifiers (E442, E476), and flavorings are all listed as ingredients in Cadbury chocolate. It also contains wheat and nuts.
So far, there has been no specific report that rat hair had been found in Cadbury chocolates, and these contaminants are inevitable in large-scale productions. Furthermore, no food authority has formally released any reports or complaints about any such incident. As a result, we classify this assertion as false.