The invention relates to a KD (ketogenic-diet) composition eaten by tumor patients and a preparation method of the KD composition. The composition comprises raw materials in parts by
mass as follows:1 part of fats, 0.1-0.8 part of
protein, 0.2-0.4 part of
dietary fiber and 0.05-0.2 part of whole silkworm freeze-dried
powder. The whole silkworm freeze-dried
powder is freeze-dried
powder obtained after ultralow-temperature freezing and crushing of adult silkworms. The preparation method of the KD composition comprises the 5 steps as follows:
raw material cleaning, ultralow-temperature freezing,
spray drying, powdering and mixing, disinfection and packaging. In the KD composition, the
dietary fiber and the whole silkworm freeze-dried powder are added clearly, and the proportions of the
dietary fiber and the whole silkworm freeze-dried powder are clear; and the KD composition can supplement high-quality
protein through the whole silkworm freeze-dried powder and enhance
immunity, KD can selectively make
tumor cells hungry, physiological ketonemia can regulate key accesses in production and development of tumor, anti-tumor acting bodies can be produced, and the KD composition can be directly eaten by various
cancer patients as a food therapy substance.