Sir: The use of unhygienic cooking oil and ghee for frying edibles is going on unchecked, that has been putting people’s health at risk in all parts of the country. Most of the vendors fry edibles in used oil and do not change it despite using it for many days. It is observed that many vendors and shopkeepers mix new oil in already used oil, which is a very dangerous practice. The consumers of these fried items have demanded that the concerned authorities should take action against such vendors. It is also a matter of concern that these items are prepared in unhygienic conditions. Most of the people in this business do not adopt any measure to maintain the quality of oil as well as to increase the useful life of frying oils. A large number of vendors and shopkeepers are selling unhygienic food, drinks and beverages that are causing various diseases. The stalls including fruit chat, fast food, cold drinks and other eatables set up particularly at roadsides and streets are selling unhygienic food items. It is important for authorities to take notice of the situation and ensure elimination of unhygienic food and drinks. One should not allow anyone to play with the health of people. Special teams should monitor the sale points and should fine those who sell food and beverages in unhygienic conditions. MOHAMMAD HARIS KHAN Karachi