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How long does it take for belly fat to start burning?

“After about 30 to 60 minutes of aerobic exercise, your body starts burning mainly fat,” says Dr. Burguera. (If you're exercising moderately, this takes about an hour.)

health.clevelandclinic.org - Where Does Body Fat Go When You Lose Weight? – Cleveland Clinic

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What happens when you diet and exercise

What happens to body fat when you shed pounds — do you sweat it out, pee it out or breathe it out? The answer is yes, yes and yes. Advertising Policy Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy How on earth does this happen? “It helps to understand that our bodies are designed to store excess energy in fat cells,” says endocrinologist Bartolome Burguera, MD, PhD. If you’re carrying extra pounds, it means you’re taking in more energy (calories are units of energy) than you’re using. “The extra energy is stored in adipose tissue all around your body in the form of triglycerides,” says Dr. Burguera. Smaller amounts of energy are stored in your liver and muscles as glycogen.

How does your body use energy? In more ways than you’d think:

When you’re resting. Your heart needs energy to pump, your lungs to breathe and your brain to think. (That’s your basal metabolism.) Your heart needs energy to pump, your lungs to breathe and your brain to think. (That’s your basal metabolism.) When you’re active. Your muscles need energy whether you’re only getting up from a chair or running a marathon. Your muscles need energy whether you’re only getting up from a chair or running a marathon. When you’re eating. Your digestive system needs energy to break down and store food.

What happens to body fat when you diet?

When you diet, you take in fewer calories than your body needs. Because of this deficit, your body turns to fat reserves for energy.

The byproducts of fat metabolism leave your body:

As water, through your skin (when you sweat) and your kidneys (when you urinate).

As carbon dioxide, through your lungs (when you breathe out).

“Meanwhile, fat breakdown liberates energy for biological functions and physical activity,” he says. “It also generates heat, which keeps body temperatures normal.”

What happens to body fat when you exercise?

Your muscles first burn through stored glycogen for energy. “After about 30 to 60 minutes of aerobic exercise, your body starts burning mainly fat,” says Dr. Burguera. (If you’re exercising moderately, this takes about an hour.) Experts recommend at least 30 minutes of cardio two to three times a week. They also recommend weightlifting and resistance training. Increasing muscle mass may help you burn more calories and raise your basic metabolic rate. Exercise also increases your respiratory rate, so more CO2 leaves your body when you work out.

About exercise and weight loss

“Exercise is key to weight loss and to maintaining that weight loss,” says Dr. Burguera. But it may take time to move the number on your scale, so be patient. Everyone’s response to exercise varies: Some people lose weight, others maintain it, and a few may even gain a few pounds. “Generally, however, people who successfully lose weight and keep it off tend to be physically active — up to an hour per day,” he says. “Engaging in some form of exercise three times per week is highly recommended.”

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How can I be thin in 2 weeks?

Can I slim down in 2 weeks? Eat lots of green vegetables or take a fiber supplement. ... Say no to alcohol or sugary drinks. ... Try to avoid wheat products, such as bread or pasta. ... Reducing carbohydrate intake helps weight loss. ... Protein should be the main component in your diet for these two weeks. More items...

medicinenet.com - Can I Slim Down in 2 Weeks? - MedicineNet

Can I slim down in 2 weeks?

You can employ lifestyle changes to maximize weight loss over two weeks.

A person should have a realistic expectation if they set a goal to lose weight in two weeks. Fast weight loss goals are both unrealistic and unhealthy. Smaller, more realistic weight loss goals are the best way forward. A realistic and healthy weight loss goal is to lose one to two pounds per week. To lose weight in a healthy manner, you should cut 500 to 1,000 calories a day by eating less and exercising more. Anything more than that may cause harmful effects to the body, including stress and tiredness. Before deciding to go on a weight loss regime, you may want to consult a doctor or a qualified nutritionist to know how much weight you need to lose and what are the best ways to achieve it. This may vary based on several factors, such as your general health, any underlying health conditions, your daily activity levels and your dietary preferences. Below are a few common tips to lose maximum weight within two weeks.

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