 Anthropometry - All measurements in infancy will be obtained nude and for 24 to 36 mo the child wearing standardized light clothing, dry diaper and no shoes. Weight will be taken using an electronic scale with a dynamic weighing program Mettler-Toledo Inc., Switzerland. Length 0.1 cm will be measured using an infantometer until 24 mo of age OLearly Length Boards, Ellard Instrumentation Ltd., US and height at 36 mo will be measured using a stadiometer Seca Medical Scales and Measuring Systems, US. Head circumference will be measured 0.1 cm using a non-stretchable tape Perspective Enterprises, US to complete the anthropometric panel. Weight-for-age, height-for-age, and BMI-for-age Z-sores will be calculated using WHO software WHO AnthroPlus, Switzerland. Mothers weight and height will be measured, while she is still breastfeeding, wearing standard clothing using a calibrated balance-beam scale Detecto, Webb City, MO, USA and a wall-mounted stadiometer Seca model 226; new manufacturer Ayrton226 Hite-Rite Precision Mechanical Stadiometer to calculate BMI. 