how many pounds can you lose in a week doing intermittent fasting?
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In this review, intermittent fasting was found to reduce body weight by 3-8% over a period of 3-24 weeks (2). When examining the rate of weight loss, people lost about 0.55 pounds (0.25 kg) per week with intermittent fasting, but 1.65 pounds (0.75 kg) per week with alternate-day fasting (2).
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Weight loss studies of intermittent fasting have typically investigated the 5:2 diet or alternate day fasting interventions lasting three to six months. For most people in such studies, it takes two to three months to lose 10 pounds.
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But do you really know what's realistic? Over the long term, it's smart to aim for losing 1 to 2 pounds (0.5 to 1 kilogram) a week. Generally to lose 1 to 2 pounds a week, you need to burn 500 to 1,000 calories more than you consume each day, through a lower calorie diet and regular physical activity.
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Unless you compensate by eating much more during the eating periods, then you will be taking in fewer calories. According to a recent 2014 review study, intermittent fasting can lead to significant weight loss. In this review, intermittent fasting was found to reduce body weight by 3-8% over a period of 3-24 weeks (2).
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Yes, conventional wisdom states that reducing your calorie intake (or increasing the amount you burn) by 500 calories a day should lead to about 1 pound of fat loss per week. (Math: 500 calories a day x 7 days = 3500 calories a week = 1 pound.)
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The Research So Far A systematic review of 40 studies found that intermittent fasting was effective for weight loss, with a typical loss of 7-11 pounds over 10 weeks. [2] There was much variability in the studies, ranging in size from 4 to 334 subjects, and followed from 2 to 104 weeks.
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Be realistic with your weight loss goals In order to lose one kilogram per week, you would need to burn and reduce your dietary intake by approximately 1,000 calories per day," Clark said.
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Some dietitians suggest you might lose up to 5–10 pounds (2.3–4.5 kg) this way. Weight loss will slow down after the first week, but your fat mass may continue to decrease if you maintain the diet.
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It's common to lose 2-6 pounds (1-3 kg) within the first week on a strict low-carb diet, and then on average about one pound (0.5 kg) per week as long as you have a lot of weight remaining to lose. This translates into about 50 pounds (23 kilos) per year.
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Most experts agree that losing between 1 and 2 pounds weekly is a safer, sounder approach to weight loss. Since 1 pound of fat equals approximately 3,500 calories, by reducing your caloric intake by 3,500 to 7,000 calories each week, you'll safely lose about 1 to 2 pounds each week.
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Put simply, to lose 1 lb of body fat per week, people will need to have a deficit of around 500 calories per day. They can achieve this by consuming roughly 500 calories fewer than they are currently, by burning an extra 500 calories per day with exercise, or a combination of the two.
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So, in general, if you cut about 500 to 1,000 calories a day from your typical diet, you'd lose about 1 to 2 pounds a week. It sounds simple. However, it's more complex because when you lose weight, you usually lose a combination of fat, lean tissue and water.
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Lark and most experts suggest trying to lose between one-half and two pounds per week. That means you need an average deficit of: 250 calories each day to lose ½ pound per week. 500 calories each day to lose 1 pound per week.
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May lose the wrong type of weight In fact, research shows that you may lose up to 2 pounds (0.9 kg) each day of a 24- to 72-hour water fast ( 7 ). Unfortunately, a lot of the weight you lose may come from water, carbs, and even muscle mass.
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Generally, most health experts recommend aiming for about 1–3 pounds (0.5–1.4 kg) of weight loss per week, or approximately 1% of your total body weight ( 33 , 34 ). Therefore, it may take anywhere from a few weeks to several months to lose 30 pounds safely.
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Experts typically recommend cutting about 500 calories per day to lose fat at a sustainable rate, which is just about one or two pounds per week, says Turoff. Unless you have a significant amount of weight to lose—like, 100 pounds or more—you can't really lose more than that pound or two of pure fat that fast.
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If you want to lose weight, you'll need to cut calories from your maintenance mode to see results. "One pound of fat is around 3,500 calories, and safe fat loss is one to two pounds per week," says White. To lose one pound of fat per week, you'd need a 500-calorie deficit each day.