1. A method of reducing lipid absorption in an animal, comprising the use of one or more alkanolamides of fatty acids in an animal in an amount effective to reduce lipid absorption in an animal. ! 2. The method according to claim 1, wherein the fatty acid alkanolamide is fatty acid ethanolamide. ! 3. The method according to claim 1, wherein the fatty acid alkanolamide is N-acyl fatty acid ethanolamide. ! 4. The method according to claim 1, wherein the fatty acid alkanolamide is N-oleoyl-ethanolamide. ! 5. The method according to claim 1, wherein the fatty acid alkanolamide is (Z) - (R) -9-octadecenamide, N- (2-hydroxyethyl, 1-methyl). ! 6. The method according to claim 1, wherein the fatty acid alkanolamide is a hydrolysis resistant analogue of the fatty acid alkanolamide. ! 7. The method according to claim 1, wherein the fatty acid alkanolamides are used in an amount of about 0.1 to 1500 mg / kg / day. ! 8. The method according to claim 1, in which the alkanolamides of fatty acids are used in the animal in the form of a food composition or dietary supplement. ! 9. The method of claim 8, wherein the composition is a food composition and fatty acid alkanolamides comprise about 1 to 40% of the food composition. ! 10. The method according to claim 1, further comprising the use of alkanolamides of fatty acids in combination with one or more prebiotics or probiotics. ! 11. The method according to claim 1, further comprising the use of fatty acid alkanolamides in combination with one or more weight control agents. ! 12. The method according to claim 1, in which the animal is a human or pet. ! 13. The method of claim 12, wherein the pet is a dog or cat. ! 14. A kit suitable for the use of fatty acid alkanolamides in an animal,1. Способ снижения абсорбции липидов у животного, включающий применение одного или нескольких алканоламидов жирных кислот у животного в количестве, эффективном для снижения абсорбции липидов у животного. ! 2. Способ по п.1, в котором алканоламидом жи