Currently young adults are at a high risk of becoming overweight or obese (excess body fat), and developing related disorders more than previous generations. The phenomenon known as the “freshmen fifteen” is no myth. Previous research has found that 80% of first year students gain body weight within the first year of college with an average of 5.0 lbs (2.3 kg) for males and 5.5 lbs (2.5 kg) for females and dietary intake may be the culprit. Potentially, dietary influences on body composition changes following an academic semester of college may differ between males and females. Therefore, the objective of this study was to assess if gender differences exist in the first semester for first year college students regarding body composition and dietary intake. First year college students (N=21, age 18.3 ± 0.6 years, male n=10, female n=17) from the University of La Verne were asked to report to the laboratory fasting for body composition assessments and a dietary intake analysis pre and post first semester. Body composition (body weight, fat mass, fat free mass, percent body fat, etc.) was measured using a 310 Tanita scale (Tanita, Japan). A record of daily dietary intake for a total of 3 days, 2 days during the week and 1 day during the weekend was assessed using Dietary Analysis Plus software (Cengage, USA). An independent t‐test was used to assess the differences between pre and post measures for body composition and dietary intake using SPSS v.21 and a P‐value of < 0.05 was used to determine significance. A significant difference in the change of fat mass (males 5.2 ± 5.3 kg, vs females −0.3 ± 4.6 kg, p<0.05) and dietary poly‐unsaturated fat intake (males −3.1 ± 5.3 kg, vs females 1.9 ± 3.5 kg, p<0.05) was found following the first semester of first year students between genders. Trends in the change of percent body fat (males 4.0 ± 5.0 kg, vs females −1.4 ± 7.5 kg, p<0.07), dietary saturated fat intake (males 9.4 ± 17.4 kg, vs females −3.6 ± 10.0 kg, p<0.09) and dietary omega‐6 intake (males −2.7 ± 4.7 kg, vs females 1.3 ± 3.0 kg, p<0.06) was also established. In conclusion, gender has an impact on body composition changes across the first semester in first year college students at a small private liberal arts institution. Programs emphasizing gender specific approaches to managing body composition in the first semester for first year college students may be needed on college campuses.