National Catholic Register

Culture of Life

Fact of Life

Beefing up Boys

BY Jim Cosgrove

June 29-July 5, 2003 Issue | Posted 6/29/03 at 1:00 PM


New research shows that women pregnant with boys consume 10% more calories a day than those carrying girls — yet they don't gain more weight. The finding helps explain why boys average 3.5 ounces heavier than girls at birth. It also suggests that signals between the fetus and the mother drive the appetite during pregnancy.

Source: British Medical Journal, June 7

(Register Illustration by Tim Rauch)