Abstract: Objective To understand nutritional knowledge,attitude and practice of young lovers and unmarried youth,and to provide evidence for teaching nutritional knowledge to the young people.Methods A survey on nutritional knowledge,a ttitude and practice was carried out among young lovers and unmarried youths chosen randomly in the urban of Jinan city with a self designed questionnaire.Results The results showed that the average score of the nutritional knowledge of the youths who had lovers was higher than at of the unmarried youths (P < 0.05).Women were more interested in nutritional knowledge than men(P < 0.05).The rate of having the habit of food avoidance of the women was higher than that of the men (P < 0.05).Conclusion The status of love affair and sex difference have influence on the nutritional knowledge,a ttitude and practice of the young people.Persons with lover master more nutritional knowledge.Women have better nutritional a ttitude.More women have food avoidance.