Unless you're under doctor's supervision and you are going to die of obesity related diseases tomorrow (extreme morbid obesity), I would highly advise not doing this. It is not safe to lose weight this rapidly. Maximum safe fat loss is usually around 0.5-1.5% BW loss in pounds a week. Also, stop taking the fat loss pills and throw them in trash. You don't need them, they probably don't work or if it does, it's probably because of the caffeine or placebo. Also, the supplement industry isn't regulated so you could be popping pills made of rice flour for all I know (under "proprietary blends", lol). Any more and you are risking the following:
1) Assuming you are successful, gaining it all back.
2) substantial losses in lean body mass (which also decreases metabolic rate)
3) Substantial losses in electrolytes resulting in dehydration, hypertonia, and possibly sudden cardiac death (I've seen it happen).
4) Going crazy
5) Amenorhea (only applies to females, as far as I know)
Thus, consider the following:
1) Fat loss should be slow and steady, no more than the aforementioned 1.5% BW in lbs a week IF you are obese.
2) Eat a balanced diet. Strict food choices are not necessary at all. Nutrient dense, minimally processed food choices are recommended though.
3) Increase protein may be beneficial. Recent studies suggest 2.3-3.1g/kg of lean mass maybe necessary for maximum lean mass retention and satiety, and also resistance training.
4) Patience, my young Luke
5) Biggest loser contestants should not be seen as role models.
6) If you don't wanna listen to me, then at least do it under doctor's supervision and stop immediately if you notice any adverse problems.
Good luck... I hope all goes well but don't get carried away.