If you want to lose weight fast, you can also try using some of the diet pills as a tool. These are usually formulated to help you burn off fat rather than build muscle so they won’t help with muscle gain, but they will help you lose fat. There are many diet drinks and powders out there that are designed to help you lose weight, but there’s no evidence to suggest that they work.
There is relatively little research on these types of products, but little has been done to suggest that they are not effective. One study tested the effects of a weight loss pill on a group of men. They took a placebo for one week and then received Energy weight loss pills designed to help them lose weight. After two weeks, there was no difference between the groups in how much weight they lost. The participants who did not take placebos also did not lose any weight; this suggested that taking the pills might have something to do with not losing weight rather than making them gain fat instead of burning it off.
The only way to know for sure if you can use such products safely and effectively is to take part in clinical studies demonstrating their effectiveness, which is unlikely to happen for a number of reasons, including the fact that there are very few people willing or able to participate in such studies. Weight loss pills may show a short-term benefit, but their long-term effect is unknown.