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Seven Day Slimming Diet

If you've got a week to lose weight, a crash diet like the Seven Day Diet may seem like an effective plan. The American Heart Association warns against using fad diets like the Seven Day Diet because it is not sustainable and will not provide long-term weight loss. Consult your doctor before using the Seven Day Diet to lose weight, especially if you have health problems or allergies.


The Seven Day Diet focuses on eating a strict amount and combination of low-calorie foods in order to reduce calorie and fat intake. The fewer calories and grams of fat you eat during the day, the more weight you will lose. The origin of the Seven Day Diet is unknown, according to The diet has been passed down through the Internet and no books or instruction manuals are required to follow this diet.


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According to the article "7 Day Diet Review" on dieting website, the diet features only about 500 calories per day, which is much less than than the daily recommended calorie intake of 2,000 calories per day. Although consuming less calories may help you lose weight, you will only keep the weight off if you continue to eat fewer calories. You may lose weight during the week, but you may gain it back immediately after resuming your normal calorie intake.

Meal Plan

On the first day of the diet, eat only fruit. Eat as much fruit and fruit juice as you want, but avoid bananas. On the second day of the diet, eat only vegetables--like broccoli, carrots and celery--and vegetable soup. Eat as many vegetables and as much vegetable soup as you like. On the third day, eat both fruits and vegetables, fruit juices and vegetable soup. Avoid bananas, but eat as many fruits and vegetables as you want. On the fourth day, eat only five bananas and five glasses of whole milk. On the fifth, sixth and seventh days, eat four 3-oz. portions of beef, fish or chicken and eat as many green vegetables as desired.


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According to, the diet is not recommended because it does not contain a balance of each food group. Instead, it involves isolating each food group and eating from only one or two food groups a day, which is not healthy. On the first two days of the diet, no protein is consumed. Eating only one type of food may cause health problems, especially if you continue the diet for longer than a week.

Expert Insight

The American Heart Association does not recommend fad diets that encourage dieters to eat one food group in order to lose weight, like the Seven Day Diet requests. Instead the AHA suggests eating a diet that contains a balance of fresh fruits and vegetables, whole grains and lean protein in combination with regular exercise in order to lose weight and keep the weight off.