This paper considers labor force activities among adults( 26 to 41 years of age in 2003) who participated as children in a nutrition supplementation trial in Guatemala.The vast majority of men are engaged in some type of income-generating activity in 2002–04. However, unliketheir fathers, these men are much more likely to beengaged in wage labor, even if they remain in the origi-nal study villages. Those engaged in wage employment appear to do so steadily. Women are much more likelyto be engaged in some type of income-generating activ-ity than their mothers. For both men and women, thereappears to be considerable movement in and out of ownbusiness activities. In Guatemala City, wage work is the predominant economic activity with more than half of the women interviewed working for wages; elsewhere operat-ing non-farm businesses is the most often cited activity.For both men and women, agriulture now appears to be very much a secondary activity.