The first thing you need to understand is that one pound of fat is made of about 3,500 of extra calories. Therefore in order to lose one pound of fat, you need to create a caloric deficit of 3,500 calories. For example if you wanted to lose one pound a week ~3,500/7= 500. That means negative 500 calories a day overall.
How does immunity fight COVID-19?
Some T cells stimulate B cells to make antibodies, while others kill cells that have been infected by the virus. On top of that, these