Whether you want to lose weight for a special occasion or simply improve your health, weight loss is a common goal.
Weight loss occurs when you consistently consume fewer calories than you burn each day.
If the number of calories you consume equals the number of calories you burn, you maintain your body weight.
If you want to lose weight, you must create a negative calorie balance by consuming fewer calories than you burn or burning more calories through increased activity.
Because women typically have a greater fat-to-muscle ratio than men, they have a 5–10% lower RMR than men of the same height.
This means that women generally burn 5–10% fewer calories than men at rest. Thus, men tend to lose weight quicker than women following a diet equal in calories.
One of the many bodily changes that occur with ageing is alterations in body composition — fat mass increases and muscle mass decreases.
Your initial body mass and composition may also affect how quickly you can expect to lose weight.
You must create a negative calorie balance to lose weight. The extent of this calorie deficit affects how quickly you lose weight.