Your current body mass or weight is the No. 1 determinant of your metabolic rate, or how many calories you burn per day. The larger you are, the higher will be your metabolism. Now, to lose weight, you need to create a calorie deficit by consuming fewer calories per day than you burn. This can be easier for those with a higher weight, as they burn more calories.
Dr. Craig Primack, a member of the national board of directors for the US Obesity Medicine Association, simplifies this with an example. He says, “So, someone who weighs 300 pounds and burns 2,800 calories per day can cut more daily calories to lose weight faster than someone who weighs 150 pounds and burns 1,800 calories per day. Note that most experts recommend not cutting your daily calories below 1,200.