A composition suitable for the preparation of insect diet formulations, containing proteins, carbohydrates, vitamins, salts, and lambda carrageenan； the composition contains maltodextrin and no agar. An insect diet formulation, containing the composition described herein and water (room temperature). A method for rearing insects from eggs, involving providing the insect diet formulation described herein and culturing the insects with the insect diet formulation.
