In lemurs, the high variability in infant mortality and female reproductive success may result from energy constraints imposed by unpredictable environments. We analysed the weaning process and energy investment of lactating females in wild groups of Lemur catta (ring-tailed lemurs: RTL), Propithecus verreauxi (Verreaux’s sifaka: VS), and Eulemur hybrids (E. rufifrons x E. collaris, or brown lemurs: BL). We recorded feeding activity and nutrition of maternal dyads (RTL, n = 7; VS, n = 4; BL, n = 9) (mouthfuls, focal animal, time sampling methods) during one year after birth in the rainy (November-February; mid-late lactation) and dry (May-July; post-weaning) seasons, with 4 full days/species/month (2 roups/species). While the number of suckling decreased until 4-6 months of age in BL and VS, the average duration of breastfeedingincreased. Young RTL and VS still devoted >50 % of their feeding activity to suckling. Substantial ingestion of solid food occurred earlier in BL and RTL than in VS. Unlike RTL and VS, young BLconsumed significantly more solid foods different from those selected by their mother before weaning than after weaning. During mid/late lactation, maternal energy intake was low in BLand VS, possibly accounting for early consumption of solid foods in young BL and a relatively long phase of lactation in VS. Distinct maternal strategies possibly affect the young's risk of energy imbalance differently.