Ever wondered why some Labradors always seem to be hungry? Scientists have uncovered a genetic reason behind their endless appetite and it turns out the same gene is linked to obesity in humans too.
A recent study by researchers at the University of Cambridge has identified a gene DENND1B that plays a key role in regulating hunger and body weight. Labradors with changes in this gene are more prone to overeating and weight gain and the same genetic pattern has now been found in humans.
The Science Behind It
Our brains rely on chemical signals to tell us when we have had enough to eat. The researchers found that alterations in DENND1B disrupt this signalling making both dogs and humans feel hungrier than they should.
This means that some Labradors and some people have to work much harder to stay slim not because of willpower but because of genetics. As Dr Eleanor Raffan the lead researcher explains:
“If you have a high genetic risk of obesity you are prone to gaining weight unless you put a huge effort into not doing so. And those with low genetic risk just don’t have to work so hard.”
What This Means for Dogs and Their Owners
The study looked at the genetics of 250 Labradors and found that those with this specific genetic change were more likely to be overweight. While this discovery will not change your Labrador’s love for food it highlights why some dogs may need extra support with weight management.
The findings could also help in the development of new treatments for obesity as scientists now have a better understanding of the biological pathways that drive overeating.
So if you own a Labrador that is always begging for food it might not just be a love for treats it could be in their genes.
Read more about this fascinating research here: BBC News
