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The aim was evaluate if the alterations promoted by the insertion of a western diet during the perinatal period can be transgenerational. 4 female rats mated in the ratio 2:1. After pregnancy confirmation, a western on control diet was offered until the weaning of the pups. Pups of both groups were accompanied until complete 90 days, and then were placed to mate. After pregnancy confirmation, all rats were fed with a standard rodent diet. After weaning, rats were divided in 2 groups: second‐generation control offspring (2ºCO) and second‐generation western offspring (2ºWO), both fed with the same standard diet. Offspring body weight (BW) was measured weakly until the 90th day, dietary intake (DI) and calorie consumption (CC) was accompanied during a period of 10 days between the 30th and 40th day (young stage ‐YS) and the 60th and 70th day (adult stage ‐ AS). Offspring fasting glucose was evaluated with 30, 60 and 90 days. 2ºWO pups born with increased BW (2ºCO 5.41 ± 0.08 vs 2ºWO 6.82 ± 0.11) and maintained higher until 90th day(2ºCO 222 ± 5.11 vs 2ºWO 277 ± 4.6). In addition, 2ºWO pups had increased DI and CC in both periods, YS (DI: 2ºCO 121.3 ± 2.75 vs 2ºWO 132.6 ± 3.12) ‐ (CC: 2ºCO 552.14 ± 12.48 vs 2ºWO 603.42 ± 8.24) and AS (DI: 2ºCO 202.1 ± 6.42 vs 2ºWO 220 ± 2.64) ‐ (CC: 2ºCO 641.01 ± 21.11 vs 2ºWO 700.38 ± 14.11). In relation to fasting glucose, no change was observed in any of the periods (30 days: 2ºCO 84.83 ± 2.01 vs 2ºWO 89.5 ± 1.87; 60 days: 2ºCO 87.83 ± 3.88 vs 2ºWO 82.67 ± 2.60; 90 days: 2ºCO 93.83 ± 2.54 vs 2ºWO 82.66 ± 1.87). In conclusion, these findings suggests that dietary patterns influence directly the feeding behavior of future generations.