Not trying to be mean but you can take it off fast but it won't stay gone. I do not know anyone and have never heard of even 1 person who lost weight fast and kept it off. And I am very deep around people who have dieted. Fast weight loss comes back because the metabolism adjusts to the starvation cycle and at some point you have to start eating again. Then the body stores fat. When you lose weight fast you don't lose just fat you usually also lose muscle. The skeletal muscle you lose only makes the weight gain worse because the lean muscle mass is what helps your metabolism burn fat. So now you have less fat but you have less muscle too. When you gain the weight back you gain back just fat, and more than you started with. You know, lose 20, gain 25, lose 25, gain 30. That's why it is called Yo-Yo dieting. It doesn't work. The body is responding negatively to a destructive event. Whats worse is the muscle lose. It can even be heart muscle that is damaged. People who toy around with weight lose have more heart damage than the people who don't try and just stay fat. Seems unfair but it is true.
The human will power is only so strong. Almost all people can't win the will power game at anything and for women it's most obvious with food. You can control big changes in what you eat for a little while but then will fail. These attempts at this type of control is what eating disorders are all about. Those people aren't weak. They went down a path that opened doors to only worse decisions. When you don't get the nutrients you need your brain cannot do it's job.
The food changes have to be small and gradual. You have to work the change into a normal and be totally happy with it. Then from your new normal you can work in another healthful change. Eventually, and without fail, these changes will add up to a much healthier eating style that is NOT a will power struggle each day. You will be healthier and the body will adjust down it's fat level to a healthy place. This might not match the look that hollywood or mattel puts forward or that you want.
So, if you weigh 180 pounds you would divide that number in half. 90. Thats how many ounces of water you should drink each day. Some juice substitute is fine but not all 90 oz. Stretch for no less than 20 minutes each day. Start gaining flexibility. Easiest at night while your favorite show is on. Get on the floor and stretch. Exercise no less than 20 minutes each day. 30 minutes is better. Longer than 45 minutes is too long if done all at once. If you have time and motivation you could do 2 - 20 minutes sessions in a day but have them at least 4 hours apart. The stretching I am talking about is not the range of motion warm-up that most people do before working out. I am talking about pure stretching. The kind that actually gains noticable flexibility improvements every 3 weeks. This should not be done before working out. You should be relaxed and resting after a stretching session.
You have to eat right so please don't go low fat. That's just stupid. You have to have fats in order to lubricate the joints in your body so you don't have joint inflamation. Your heart needs fats to work properly. Your brain uses fats to help the neurotransmitters fire correctly. You have to make decisions on the right and wrong fats.
Avoid all peanut oils. That is all fast food fried stuff. They use peanut oil usually. Deep fried anything is unnecessary. Use extra virgin olive oil at home in anyway you can but don't heat it too high. Eat almonds, walnuts, pumpkin seeds, pecans, all raw and unsalted. Do not eat peanuts, they are useless. Eat almond butter instead of peanut butter. Have an avacado every week. Don't use any substitutes for butter. Just use butter. For butter wants on bread use olive oil and salt. It's hard to tell the difference by taste. Don't do artificial sweeteners, of any kind, at all, ever, and this includes splenda. They mess with the way your body processes sugar and carbs only making the overall problem worse. You can use molasses, honey, and stevia if you want to avoid processed sugar. If you are diabetic then use stevia. The drops are better than the tablets. It doesn't count against your blood glucose numbers.
You need to be taking a multi vit/min supplement,a trace mineral supplement, a stand alone B complex, CLA, and a fish/borage/flax oil pill every day.
It would be very beneficial to get a juicer and juice vegatbles every day. Carrot/apple/beet/parsley/celery. Then you wouldn't be needy for as many supplements. The juiceman by Jay Kordich and the Jack Lelane are really good ones for home use and affordable. You would have lots of energy and no brain fog if you did this each morning and as soon as you get home from work before dinner.
I wish I could give you an easy way but there isn't one. Anything fast is not healthful. The long road doesn't sit well with our instant gratification needs. You are probably pretty healthy and feel like you can go through the fast way without much risk for harm. But it does take a toll on the heart and the brain every time for every one. Don't kid yourself.
God Bless and Good Luck.