I am 245 pounds. I wanna lose 75 pounds in 50 days. Is drinking water and 2 slimfast shakes a day a healthy way to shed those embarrising pounds? My sister droped 45 and now she weighs 150 by following this diet. Is it safe?

It's not safe for anyone..even if you lose it you will be left with large tracts of loose skin that will not seem to fit your body....get onto a more sensible diet/exercise regime if you really want to do something about it.

Before doing any diet, you should check with your doctor first. You are not giving your age or your health history...that is all important before you jump into any diet. If all you are having is water and 2 slimfast shakes a day.....no that is unhealthy. Also as soon as you get off that and start eating food again you will start gaining weight. Exercise and cutting back your portions of foods, staying away from junk food, stay away from trans fats and carbs is a healthier way of dieting.

Exercise for 20 minutes daily, if you just walk 20 minutes that will be great, start by 10 minutes and you can just walk another 10-min daily and lose 10 lbs through the year.

Exercise daily This could be one of the difficult steps to follow regularly. But what you can do is essentially start gradually then steady boost the amount of exercise. For example, today you will walk for 5 minutes; repeat this for the entire week. For the next week, increase the workload day by day. You may easily get leaner in this way.