Best to eat a very balanced diet...you need the nutrients in all different foods when you are eating for two. Watch portion sizes and see that you get 30 to 60 minutes of exercise daily. Sometimes with the hormone shifts of pregnancy, it just takes awhile for the weight to shift. Meanwhile, you can avoid making things "worse." Probably 1200-1500 calories including 3 oz protein per meal would come close. Avoid fruit juices with sugar, high glycemic carbohydrates (white bread, cookies, and so on). There is good info on the diabetic diet which will work wonderfully for you--not as extreme as Adkins or others and so not as hard on your system.
2000 calories
It takes 3500 calories to lose a pound
You would need to lose 3500 Calories to lose 1poundDecrease your daily calories by 30%.
For extreme weight loss, eat 1584 calories a day of healthy non processed foods and drink lots of water. Excersise daily.
3,500 calories.
at least 300 calories per day
Less calories in, more exercise out.
It all depends on your calories intake and physical activity. If you consume more calories than what your body needs despite loosing 800 calories a day, you wouldn't loose any weight.
1500 calories
There are 3500 calories in one pound. Cutting 500 calories a day would make you lose one pound each week.
According to APEXFitness.com a female age 32 who is 5'6" and weighs 310 lbs burns 3099 calories a day without exercising. Supposedly, to lose one pound of fat, you need to burn 3500 calories more than you eat. So 40 lbs would be 3500x40=140,000 calories. 4 months is about 120 days. So you would need to eat 1166 calories less than you burn every day. Which means that at 310 lbs, you should eat 1932 calories a day. But that will change as you lose weight. At 290 lbs, you can only eat 1784 calories. And your intake gets lower as your weight drops.
1000