Dried out starvation is the easiest and best approach to lose weight really quick for three days. This can be a very simple procedure. You need nothing to consume or drink for three days. According to nutritionists, the body will actively break up its own fat for water and nutrients within the first days of fasting. Many starving people point out the absence of thirst. But this method of quick weight loss not suitable for everyone, and it can cause weakness and headaches when you initially use.