Fat Instahard loss is attempting to lower your total body fat - i.e. the percentage of your total body weight that is made up of fat.
The right approach for fat loss is to exercise smartly and eat intelligently in a way that maintains muscle and focuses on fat loss exclusively.
a deficit and feed the body too much - it won't touch the stored fuel reserves. On the hand if you drastically cut your calories and do not feed your muscle properly or don't exercise and use your muscle, you will lose it. Fat loss is about finding that right balance.