Abstract: The present invention relates to a method of making a sorbent, comprising the steeps of crushing seed husks, acid hydrolysis with extraction of water-soluble ballast substances and formation of the target composition of lignin, cellulose and melanin, water rinsing and drying, wherein the acid hydrolysis is made with an 0.1-36% acid solution during 0.3-4.5 hours in the boiling mode under pressure in the range 0.1-0.7 MPa, rinsing is made with water and/or a 0.1-1.0% alkali solution and then softened water, and the product is subsequently dried. The sorbent comprises a porous multilevel matrix on the basis of lignin, cellulose and melanin. The invention further discloses the sorbent and its uses as for prophylaxis and treatment of toxicoses, free-radical pathologies, diarrhea syndromes which are caused by ecotoxicants, viral and bacterial infections, for prophylactic and treatment of animal diseases caused by mycotoxins, pesticides, bad-quality forages in all kinds of animals.