I am watching what I eat... low fat, low sugar & 1200-1800 calories a day. So your telling me working out on the treadmill getting my heart rate to 130-140 isnt going to help me lose weight?
I can guarantee you this will make you lose weight. Since It is exactly what I did for the most part.
At the height of my treadmill experience I was running 6mph in 2 45 minute sets a day. Morning and evening. I lost 180 pounds in 12 months down to a low of 155 pounds.
However here comes the warning. You may not be as happy with the results as you have told yourself you will be. I too wanted to get the weight off fast fast fast and at all costs. I payed no heed to the people that told me to do resistance training to maintain my muscles. I opted to tell myself I could just put muscle back on later. Heres what happened.
I became a running machine at the height of it that is until my body consumed most of my muscle and I hit a brick wall at about 180 pounds. Likewise, I didn't have a body I was happy about still. I had told myself I will be happy if I can just get to 180 pounds. I wasn't, so I got right down to 155 pounds, and you know what? Still not happy, why? Because I became gaunt and bony in my upper body, very weak and lacking muscle mass, and I still had loose skin, belly fat, and a sagging chest. Basically There was nowhere left to go and I still had body fat. Yet I couldn't understand why I couldn't run hard anymore. It was a motivational killer.
I tried to transition to weight training as planned but let me tell you, when you run yourself down that weak it is really, really, really hard to start resistance training.
Now I have other problems as I try to transition but we won't go into that again, since this advice is for your benefit not mine.
My advice. Take the advice of others, do the resistance training on the way, I did full out cardio burn down in 12 months, and yes it burns fat, but it burns up your muscle mass too, it is not the best way to go about it, and I would not do it the same way if I did it over.
I understand your feelings on it fully, you want it off as fast as you can get it off, and I did too, but take my advice and learn from my mistakes.
P.S. Watch the low fat too, I went insane on low fat and it was the wrong approach. You need healthy fats, examples, olive oil, flaxseed, salmon. Avoid saturated and trans fats like excessive high fat dairy, and don't be fooled by low fat or fat free processed foods, (most notoriously yogurt) they just replace the fat with massive quantities of sugar, a very good way to make yourself insulin resistant and mess yourself right the hell up.