Sorry, 20-somethings: You may have to eat less than your parents to stay slim.
This soul-crushing news comes from scientists at York University, who looked at dietary data between 1971 and 2008.
As it turns out, people taking in the same number of calories per day as people 35 years ago weigh more.
So, what gives?
Lead researcher Jennifer Kuk explains weight loss has a lot more to do with calories in and calories out.
Factors like medication, environment, lifestyle, pollutants, stress, genetics and what's actually in the food likely play roles, too.
In a press release, she notes,
Our study results suggest that if you are 25, you'd have to eat even less and exercise more than those older, to prevent gaining weight. However, it also indicates there may be other specific changes contributing to the rise in obesity beyond just diet and exercise.
All hope is not lost, though! If you find yourself unable to lose weight, do a little check-in.
Are you drinking enough water?
Is there a possibility you have a food allergy you didn't know about? Are you drinking too much alcohol?
Is your exercise routine effective?
You may want to tweak some of those factors before throwing in the towel when it comes to weight loss. Trust us.