Weight Loss: Eating Healthy
Weight Loss: A Matter Of Calories
A calorie is a unit of energy, which refers to the foods and drinks you consume. Your body requires a minimum amount of calories you need for the functioning of vital organs (heart, brain, lunges ...), which is called BMR (Basal Metabolic Rate). I also recommend you to calculate the calories you need in order to maintain your weight, check this link! (which is an indicator, the real number may slighlty differ)
Fat loss occurs when you're burning more calories than you consume, often called "caloric deficit". This can be achieved by reducing your amount of calories you eat for maintenance and/or adding cardio exercises to burn more calories. You will have to reduce your calories from all macronutrients, but mainly from your carbohydrates.
When you know your daily caloric maintenance, you basically need to decrease this number from 200 calories to 500 calories. For example, your caloric maintenance is 2200 calories daily, if you want to lose fat you will reduce this number to 2000 calories (use this calorie counter app). Be aware, if you're decreasing too much (500 calories, for example) it will be harder to maintain and you might also lose muscle tissue.