The secret to losing weight is truly all about science and mathematics. If you know the right formula, you'll know exactly how much weight you are losing at any given time. You will also know exactly what to eat and how much in order to lose weight. Figuring out the right formula and understanding how your body works will determine your success.
Identification
There are a few scientific facts about weight loss, but not all apply to everyone. People who weigh more and have more fat lose weight faster with dieting than exercise than people who are already fit and are simply looking to lose say 10 or fewer pounds. Your body mass index, or BMI, is a major factor in determining how healthy you are and how you should be losing weight. Your body's condition, such as fitness level, diseases such as hypertension or diabetes, can also play a major factor in how you lose weight.
Because of the extreme variations of factors that determine if you can or can't lose weight, it is the reason why many articles and books tell you that you should seek a doctor to help assist you in your weight loss goals. A doctor can inspect your body and help you to realize your goals, and pinpoint where you might have to make changes.
Identification
A full pound of fat is 3,500 calories. Burn that many calories, and you lose a pound of fat.
Your body naturally burns calories throughout the day. This depends on your BMI, and several other factors. You can usually determine how many calories you naturally burn in a day. For most people, this might fall between 2,000 and 2,500 calories burned, naturally, from doing every day things. A calculator can help you determine how many calories you are burning. Your doctor can also help you figure out this number.
Formula
Let's say you burn an average of 2,500 a day from your own regular, daily activities. Your doctor might recommend you try to limit your calorie intake to 1,500 calories a day. That's an average of 1,000 lost, every day, without any additional effort from you other than restricting calories.
So for every four and a half days, you've lost a pound of fat. That's about a pound and a half of fat loss a week, provided calories burned by your body and the limited calorie intake remains consistent.
Significance
Because of the above formula, you can determine how much fat you should be losing, and you can also work to improve how much fat you lose every week. For example, exercise can increase how many calories you burn a day. A 30-minute aerobic exercise could burn 250 to 300 calories or more. This could be an additional half a pound to a pound of fat lost per week with consistent exercise. Maybe you'll work out twice a day. Maybe you'll switch from aerobic to strength training.
Building muscle with strength training improves the base number of calories burned in a give day, so as you build muscle, you'll burn more calories naturally throughout the day. This is why it is recommended to combine aerobic exercise and strength training.
Significance
Another important part of this formula is food. When you restrict calories, you also tend to look at the foods you eat. While you could eat ice cream, you'd need to reduce the amount, or else a bowl of ice cream would be all you could eat the entire day, which is in no way recommended as it is unhealthy. Doctors will tell you that if you fill your meals mostly with low calorie foods, like fruits and vegetables, you could actually eat more. Filling foods like fruits and vegetables contain very few calories, and you can eat more of them, so you won't be hungry and still lose weight. This is the most simplistic scientific formula to lose weight.
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