Is there anything to worry about?
Yes there is. In fact, if you abuse the use of fat burners then there is certainly a lot to be worried about. You would be preparing yourself for side-effects which could be short-term, long-term, reversible or irreversible. Sounds horrifying? It is intended to be so because unless you use these things under proper guidance of an expert or medical practitioner, you are making a good case of what not to do. There have been cases in the past when people go to extremes in their desperation and suffer from side-effects. It is generally not the product that has to be blamed but the greed of the user for overnight success.
Shortly after answering the question of what is clenbuterol, many beginners want to jump straight to using this drug. That's because - no matter their current fitness level - many want a magical pie-in-the-sky solution to getting ripped fast. And while clenbuterol weight loss is rather quick, it's better to do as much as you can naturally before going the drug route. This is especially the case when considering that high blood pressure and increased heart rate are possible clenbuterol side effects. So if you've just polished off a 20-piece Chicken McNugget by yourself, work on your diet and cardio before reaching for clen.