You know you should exercise and eat healthfully to keep your weight in
check. The thing is, research suggests that when people devote time to
one healthy habit, they spend less time on the other. So which is more
important if you're worried about your waistline: your workout or your
diet?
Turns out, people who think that diet is the most important factor in weight control tend to have a lower body mass index (BMI) than those who believe that exercise is the key, according to six new studies published in the journal Psychological Science.
5 Best Pre-Workout Foods
In the studies, researchers asked a total of more than 1,200 people in the U.S., Canada, China, France, and South Korea about the main factor that makes people overweight. They also took participants' height and weight measurements to calculate their BMIs. Interestingly, those who said it's most important to stay active to prevent obesity had higher BMIs than the people who said eating right is the key to weight control.
As you might expect, people's weight-control theories impacted their food choices. In two studies, when researchers offered participants unlimited chocolate, the people who said they think staying active is key to maintaining a healthy weight ate more.
A 30-Day Meal Plan For Weight Loss
"Our beliefs guide our actions," says study co-author Brent McFerran, PhD, an assistant professor at the Ross School of Business at the University of Michigan.
Think about it: If you think exercise is the key to weight control, you might move more and focus less on what you eat.
While exercise can definitely support weight loss—and make you feel awesome, among other benefits—people tend to overestimate the amount of calories they burn while working out and compensate for the extra activity by eating more, says McFerran.
On the flip side, if you believe that eating a healthy diet is the best way to maintain your weight, you might worry less about exercise—but closely watch what you eat. And that's smart, especially because most people grossly underestimate the amount of calories they consume, says McFerran.
The 3 Biggest Weight Loss Mistakes
The problem: Many people think they can work off extra pounds—but there's a ton of scientific evidence to support the fact that changing your diet is a more effective way to drop weight, says McFerran.
"If we eat a 3000-calorie lunch, nearly no one has enough free time in the rest of the day to exercise it off," he says.
Luckily, McFerran's best advice for weight control doesn't take much time: Steer clear of foods that are high in calories, and trade large plates and bowls for smaller ones to ensure you fill them with more restrained portions.
The Best Workout For Your Body Type
That said, you should probably hold onto your gym membership, too. Although it's tough to slim down with exercise alone, staying active does help with weight control—and it's absolutely crucial for your health, says Keri Glassman, RD, a Women's Health weight loss expert.
Not only does exercise produce endorphins that increase your metabolic rate and motivate you to eat better—it also supports heart health, strengthens your bones, helps you sleep, decreases stress, and boosts mental health. All awesome reasons to hit the gym when you can!
Turns out, people who think that diet is the most important factor in weight control tend to have a lower body mass index (BMI) than those who believe that exercise is the key, according to six new studies published in the journal Psychological Science.
5 Best Pre-Workout Foods
In the studies, researchers asked a total of more than 1,200 people in the U.S., Canada, China, France, and South Korea about the main factor that makes people overweight. They also took participants' height and weight measurements to calculate their BMIs. Interestingly, those who said it's most important to stay active to prevent obesity had higher BMIs than the people who said eating right is the key to weight control.
As you might expect, people's weight-control theories impacted their food choices. In two studies, when researchers offered participants unlimited chocolate, the people who said they think staying active is key to maintaining a healthy weight ate more.
A 30-Day Meal Plan For Weight Loss
"Our beliefs guide our actions," says study co-author Brent McFerran, PhD, an assistant professor at the Ross School of Business at the University of Michigan.
Think about it: If you think exercise is the key to weight control, you might move more and focus less on what you eat.
While exercise can definitely support weight loss—and make you feel awesome, among other benefits—people tend to overestimate the amount of calories they burn while working out and compensate for the extra activity by eating more, says McFerran.
On the flip side, if you believe that eating a healthy diet is the best way to maintain your weight, you might worry less about exercise—but closely watch what you eat. And that's smart, especially because most people grossly underestimate the amount of calories they consume, says McFerran.
The 3 Biggest Weight Loss Mistakes
The problem: Many people think they can work off extra pounds—but there's a ton of scientific evidence to support the fact that changing your diet is a more effective way to drop weight, says McFerran.
"If we eat a 3000-calorie lunch, nearly no one has enough free time in the rest of the day to exercise it off," he says.
Luckily, McFerran's best advice for weight control doesn't take much time: Steer clear of foods that are high in calories, and trade large plates and bowls for smaller ones to ensure you fill them with more restrained portions.
The Best Workout For Your Body Type
That said, you should probably hold onto your gym membership, too. Although it's tough to slim down with exercise alone, staying active does help with weight control—and it's absolutely crucial for your health, says Keri Glassman, RD, a Women's Health weight loss expert.
Not only does exercise produce endorphins that increase your metabolic rate and motivate you to eat better—it also supports heart health, strengthens your bones, helps you sleep, decreases stress, and boosts mental health. All awesome reasons to hit the gym when you can!
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