To lose 4 pounds in 3 weeks is actuallyKetozolquite easy and doesn't require any special methods or diet. You just need to watch what you eat and you have ample time for this to create a sufficient calorie deficit to achieve a 4 lbs weight loss. If you follow the tips in this article, I have no doubt that you will achieve this goal.
Reduce 5-10% of your calories you have just 4 pounds to lose, you don't need to do anything drastic. However, you still need to create some sort of calorie deficit to induce weight loss. A 5-10% reduction in the amount of calories you consume should be enough, and it's not a hard thing to do.
Space your calories You can take the calories that you consume and eat them in a better way which will help you to lose more weight. One of the things you can and should do is space your calories throughout the day. Eat a lot of mini-meals and snacks instead of a few big meals. The body will handle the calories better and use them more efficiently.