It is recommended to feed rodents a species-specific pelleted food to meet their nutrients needs. Some experts recommend not to use mixtures of foods to prevent rodents from selecting only what they like, thus promoting a healthy food intake, and preventing nutritionally related diseases. Fresh vegetables, fruits, and seeds may be provided as a treat, but it is important to only provide these in small quantities and to remove any leftover fresh treats daily to prevent mold growth. Rodents are generally very selective about their food choices and may avoid any new foods. It is important to slowly transition rodents to a new diet over the course of 1-2 weeks.