As a woman, never fast.
If you fast, you will take days and slowly years away from your life, you will age quicker.
Firstly, calculate your base metabolic rate.
Let’s say you naturally burn 1500 calories a day, then try walking 4000-5000 steps a day (it’s seriously not that hard) and you’ll end up burning an additional 100-150 calories from a 5k walk per day.
So at the end, you can eat 1300 calories every day (assuming you burn a total of 1600 calories a day, with 100 calories burned from walking per day)… and you’ll burn at least 300 calories a day. 1 kg of fat has 7700 calories.
The coolest thing is that you can eat whatever foods you like as long as you don’t exceed 1300 calories a day. But it’s recommended you stay away from junk food as it isn’t filling and it’s dense in calories.
Within a month, you’ll comfortable lose 1kg of fat if you stick to my plan madam.