Vip Keto Fuel Many obese people try to reduce their weight using fat loss pills. While these pills work for a short period of time, they also lead to serious complications. Since most of these pills contain harmful chemicals, you often suffer from nausea, indigestion and even fever. Therefore, it is advisable that they should be avoided at all costs. Instead, you should try and use natural products such as acai berries and a colon cleanser.