What happens if you reduce your calorie intake by 1000?

Everybody has a basal metabolic rate. This is the amount of calories required to keep one's body functional at rest. This normally ranges from 1000-1500 calories.

Any exercise must be fuelled by more calories. If more excercise is being done than what one's calorific intake can fuel, the body will digest its own stores. Fat is often the main store used.

So, if you were to decrease your calorie intake by 1000 and that therefore was not enough to fuel your exercise, weight loss would occur. If you reduced your calorie intake by 1000 and you were still consuming more than your exercise requirements then one would put on weight.

If a reduction of 1000 calories means your total calorific intake was less than your basal metabolic rate, a severe and unhealthy amount of weight loss would occur. Muscular digestion would occur and healthiness would rapidly decline