I have big bones!! It’s not fat
Our bodies have ability to keep a balance in water composition, bone mass density, fat free mass including lean muscle therefore when one has excess weight as classified from BMI calculations >25 (weight compared to height) it is fat mass and therefore requires utilisation for energy from increased excercise and reduced intake of excess energy foods to avoid storage of excess sugars and fats as body fats(excess body fat loss=weight loss).
You can estimate body fat composition using a skin fold caliper or more commonly your waist circumference (measures excess abdominal fat).
There are just a few cases of weight from muscle mass and rarely exceed BMI 30 (obesity).
Maintain a healthy weight.