Nutritional Deficiences ----------------------- As stated earlier, nutritional deficiencies and disease resulting from malnutrition are relatively rare among captive snakes because of their habit of consuming whole prey animals. However, exclusive use of whole but immature prey animals, such as pinkies (neonatal mice and rats), juvenile goldfish and invertebrates, can create nutritional problems. Furthermore, certain snakes that receive a monotonous diet (no variety of prey items) are also susceptible to nutritional deficiencies. The hobbyist must find ways to supplement the prey items in these cases before they are offered to the snake. One method involves injecting the prey items with vitamin and/or mineral preparations. Another involves implanting a gelatin capsule filled with a powdered vitamin/mineral/amino acid supplement into the prey animal (e.g. Nekton-Rep, Nekton-Products, W. Germany).