Although this is late for your polar bear swim party (you must be crazy!!!), there are at least a jillion weight loss solutions. The primary caution with all the "fad" diets is they are NOT balanced. They may work, for a while, but will they/you maintain?
First find and take a broad spectrum supplement. We take Pro Vitamin Complete -
http://www.tryprovitamin.com/24974 because it contains 178 ingredients in one good tasting liquid. It is likely that whatever your special diet leaves out is included in PVC.
Then cut all sodas and reduce snacks and portions. Sodas and snacks probably amount to 5# on your body.
Add some exercise and you're likely to see 1# a week go away. Drink loads of H2O and clear liquids each day.
You might want to seek a carb blocker. Check carefully for the technology used in the product. Some work better than others. You might want to add a netabolic enhancer to your regimine to keep the body furnace going longer.
Here's an example of the carb blocker we use -
http://www.prostarnutrition.com/24974/4054.html
Here's an example of the metabolic enhancer we take -
http://www.prostarnutrition.com/24974/4053.html
Hope you are successful with your health improvement focus. Keep at it. Your body will appreciate it! You will live a longer and healthier life with improved health. That's why we're doing the business we do!