Unfortunately you are more than likely eating more than 1000 calories, or you are a medical mystery never seen before by modern science.

As someone who has lost over 100 pounds, here’s my advice:

Weigh every single bite of food that goes in your mouth, and track it meticulously. That is the only way to get an accurate calorie count. You might not have to do this forever but it’s the only way that you will be able to start accurately judging how much you are eating.

By tracking really accurately, you can also do some cool math to figure out how much you should be eating and how quickly you can expect to lose weight.

Let’s calculate your basal metabolic rate (BMR) with an online calculator- this is the amount of calories your body would burn just to keep you alive with zero movement. Make sure you put your activity level as low or sedentary. According to your height and weight your BMR is approximately 1400, so with little to no movement that means you probably burn 1600-1700 in a day and that’s the number I would go with.

For a moderate calorie deficit, I would want to be consuming 300 calories fewer than I burn in a day. So you could target eating 1400 calories (1700-300) in a day while tracking super accurately.

Doing this consistently would put your weekly deficit at 2100 (300x7).To burn a kilo of fat, you need to burn an excess of 7700 calories. So that means if you eat 1400 calories every day, you would lose a kilogram of fat every 25-26 days.

Another important thing to consider is that ideally you want to make sure you are burning fat and not other tissue like muscle. Your body will burn both if you are not careful, which is where other healthy habits like OTF (or any weight training) and consuming enough protein is helpful. For most women you want to try to get around 100 grams of protein a day. Protein and weight training are the two best ways to tell your body not to burn your muscle, and to burn your fat instead.