This study evaluated the effect of conventional (CONV) and sequential feeding (SEQ) programs with diets varying in amino acid content over the day on body composition in growing-finishing pig. Sixty-eight 25-kg (±2.04) BW barrows were assigned to the following feeding programs: 1) CONV in which pigs received 100% of standardized ileal digestible (SID) AA recommendations for the entire day; 2) SEQ providing 80% SID AA recommendations from 2400 to 1159 h and 120% from 1200 to 2359 h (SEQ80-120); 3) SEQ providing 70% SID AA recommendations from 2400 to 1159 h and 130% from 1200 to 2359 h (SEQ70-130); and 4) SEQ providing 60% SID AA recommendations from 2400 to 1159 h and 140% from 1200 to 2359 h (SEQ60-140). The experimental period lasted 82 days. At days 0, 28, 54 and 82 body lean mass, fat and minerals were measured using a dual energy X-ray absorptiometry (DXA). Pigs fed SEQ80-120 had body composition variables similar to CONV pigs (P >0.05). Whereas, pigs fed SEQ70-130 had greater (P< 0.05) body fat mass (5.27 vs 4.48 kg), bone mineral content (0.656 vs 0.605 kg), fat mass gain (0.100 vs 0.073 kg/d) and bone mineral gain (6.92 vs 5.16 g/d) than CONV pigs during phase 1. Still during phase 1, SEQ60-140 fed pigs had greater (P< 0.05) bone mineral content (0.655 vs 0.605 kg), lean mass gain (0.436 vs 0.374 kg/d) and bone mineral gain (7.48 vs 5.16 g/d) than CONV pigs. During phase 3, bone mineral content was higher (P< 0.05) for SEQ70-130 than CONV (1.408 vs 1.269 kg). During the entire experimental period, body composition variables were not affected by SEQ (P >0.05). According to our results, sequential feeding program improves body composition of pigs at the beginning of the growth period.