If you are feeding Selective for the first time, gradually switch over to it over a period of 10–14 days. Start by mixing a small amount of Selective into your pet's current food. Reduce the amount of the old food as you increase the amount of Selective. A sudden change in diet can cause digestive problems, so it is best to make the change gradually. The recommended daily dose for rats is 20–25 g and for mice 3–5 g. The need for complete nutrition varies individually depending on activity and other factors, so the amount of food should always be adjusted according to your pet's condition and needs. Make sure your pet always has access to clean, fresh drinking water. Store the food in a cool, dry place.

Supreme Petfoods – Small pets, big hearts Supreme Petfoods is a British pioneer in small animal nutrition, developing high-quality, veterinarian-recommended foods and treats for rabbits, guinea pigs, hamsters, rats, and other small furry friends since 1983. The company's best-known brands are Science Selective and Tiny Friends Farm, which offer natural, sugar-free, fiber-rich products to support the well-being of pets. Supreme manufactures all its products in its own plant-based production facilities, using only carefully selected natural ingredients. The company is committed to sustainable development: its products are palm oil-free, the packaging is recyclable, and the ingredients are sourced locally whenever possible. In addition, Supreme supports organizations that promote pet welfare and offers owners expert guidance on pet care. By choosing Supreme Petfoods products, you are giving your little friend the best possible nutrition – made with love, expertise, and responsibility.