Lucknow, Oct. 18 -- To curb the arbitrary use of chemical colours for giving an attractive look to sweets, snacks, momos, chutney, bakery products and other food items, the Food Safety and Drug Administration (FSDA), Uttar Pradesh, has issued detailed guidelines for food business operators.

The instructions, issued on behalf of Commissioner, Food Safety and Drug Administration, Dr. Roshan Jacob, clarify that only those artificial or natural colours that are permitted for the relevant food category may be used in food items. The quantity of colours must also be kept within the prescribed maximum limit.

According to officials, the instructions have asked food manufacturers, halwais (sweet makers), hotel and restaurant operators, bakery esta...