The invention discloses a health-care food capable of delaying
senescence and enhancing body immune function and a preparation method thereof, and the health-care food is specifically realized by the following formula and process: accurately weighing 200-400 parts of pilose
antler extract, 100-200 parts of
American ginseng extract, 20-110 parts of
ginsenoside, 2.0-4.0 parts of
selenium-enriched honey, 2.0-3.0 parts of
bone collagen peptide powder, 1.2-2.5 parts of
earthworm peptide powder, 0.5-1.0 part of flavoring agent and 1000-2000 parts of
purified water; the preparation method comprises the following steps: treating raw materials with
ozone, respectively putting the
American ginseng extract, the
cornu cervi pantotrichum extract and the
earthworm peptide powder in the raw materials into a compound high-shear crushing dispersion
machine to prepare nano powder, sequentially dissolving the raw materials and auxiliary materials with
purified water, blending according to the proportion of the components, transferring the blended liquid into an ultrasonic mixer for mixing, filtering after uniformly mixing, and packaging. The preparation method comprises the following steps: preparing into an oral spray
dosage form or an oral solution
dosage form by sterile filling, sampling and detecting after water bath
steam sterilization, and packaging to obtain a finished product after qualification. The health-care food prepared by the technology has the characteristics of small dosage, few side effects, high
bioavailability of active ingredients, convenience in carrying and the like.