First of all, like I said, diets that are low in proteins will cause you to lose muscle. Losing muscle causes you to lose pounds on the scale but also to burn less fat.
There is a direct relation between proteins and muscles. If you exercise but you’re on a diet that uses little protein, there is no wonder you cannot build muscle. Because protein is essential to develop and maintain healthy muscle. Protein is broken down to amino acids which are turned back into proteins.
So, if you want that fat to disappear and nice lean muscles to appear, eat proteins! You can find proteins in milk, eggs, tuna, cheese, yogurt, beans.