Twins have proportionally less fat tissue accumulation in utero compared with singletons as early as 15 weeks of gestation, ...

Twins—smaller at birth, on average, than singletons—start out smaller in pregnancy than was previously known, according to a ...

A study from the NIH reveals that twins have smaller thigh volumes, less fat, and less muscle mass than singletons starting ...

They also had a lower thigh fat to lean ratio than singletons, having proportionately 2.7 to 4.2% less fat from 15 to 37 weeks. Previous studies of twin growth in the womb involved 2D ultrasound scans ...

The National Institutes of Health April 7 released a study that found twins — smaller at birth on average than singletons — ...