Yes, you can increase or decrease your calorie target.
We do not advise that you drop your calorie target by too much, especially if you are also doing a lot of exercise. If your goal is to lose weight and you feel that your calorie target is too high, you could try reducing it by a few hundred calories but remember you do need to eat to lose weight! If you reduce your calorie target by too much, you're likely to feel deprived, hungry and possibly irritable too. My Blackmores's daily calorie target gives you room to include some indulgences occasionally, making weight loss more manageable and realistic.
If you increase your calorie target over what has been suggested, you may not lose weight as quickly or you may even put on weight.
You can change your calorie target in the My Profile section.