Using data from the 2010 Colombia Demographic and Health Survey and National Survey of the Nutritional Situation in Colombia (ENDS-ENSIN), we analyzed the evolution of the Colombian height trends among the birth cohort 1946-1992 by ethnic group.We find that there are statistically significant differences between the ethnic groups we considered.Those who self-recognized as afrocolombian have greater average height than the indigenous group and are also taller than those who don't identify themselves as either of these two groups, which we refer to as others.In our analysis we also find that the height gap between afros and the others, tends to reduce in the time period we study.Moreover, the results suggest that the Colombian indigenous group has a higher potential growth of 'biological well being' when they improve their socioeconomic status.