The recommended daily intake is 1200 calories a day for women, however depending on your activity level you many need to consume more or even less. To lose weight generally you have to burn more calories than you consume but doing this in the heathy way by eating your fruits , vegs, protein, carbs as recommended but in portions.
I myself have just discovered this website and find it a blessing as it is very hard to keep a food and exercise journal at home. But being that this is so well organized it will work perfectly for me at work. I look forward to updating it!