MONDAY, April 5 (HealthDay News) — Does carrying a gene tied to obesity doom a teenager to becoming obese? Not if that teen stays physically active, a new study shows. Among genes related to obesity, mutations in the so-called fat mass-and-obesity-associated gene (FTO) appear to be particularly important. In fact, each copy of a mutation in this gene has been tied to an average jump in weight of about 3.3 pounds, the researchers say. However, an hour of physical activity a day largely negated the gene’s effect, the new study found.
Unfortunately, most kids’ activity decreases dramatically when they enter adolescence:
AUDIO – Minnesota Public Radio (need Real Player)
Teens slow down and gain weight (program audio)