The invention relates to biologically active food additives and can be used in the food industry and in medicine. The technical result of the proposed invention consists in creating a more nutrient-rich and absorbable (bioavailable) biologically active additive based on cysts (eggs) of a crustacean of the genus Artemia, for use in food. A dry form of a biologically active food additive based on cysts of a crustacean of the genus Artemia comprises Artemia cysts in a dry powdered ultradispersed form. As Artemia cysts, the food additive contains cysts with a renewed process of embryo metabolism following diapause, the ultradispersed Artemia cyst powder is produced by grinding in a mechano-chemical mill/activator, and each 100 g of the product contains the following amount of biologically active substances : iodine (4.1-9.24) mg; total nucleic acids (DNA and RNA) (3.88-5.29) g; vitamin A (0.33-0.41) mg; vitamin D (1.08-1.32) mcg; vitamin E (0.30-0.36) mg; protein (38.9-47.5) g; fat (2.45-3.1) g; carbohydrates (17.97-21.97) g; chitin (2.14-2.54) g; glucosamine (1.60-2.0) g; collagen (332.7-406.5) mg. An ultradispersed powder of the product is packaged in 200 mg gelatin capsules.