When it comes to weight loss, many of us are searching for an easy quick fix but the truth is, there is no quick fix. Weight loss takes time and requires a lifestyle change. A diet that helps you lose 10 pounds in 10 days is also a diet that will likely have you putting those 10 lbs - or more - back on. Fad diets can be dangerous to your health. Dramatic weight fluctuations are dangerous and all physicians will tell you that yo-yo dieting is a bad idea. These 5 popular fad diets that you hear about all the time are dangerous and Dr. Oz advises that you should never try them.

1. Weight Loss Pills - Pills like Dexatrim, TrimSpa, and Hydroxycut are all designed to help you drop pounds fast, but at what cost. According to Dr. Oz and registered dietician Samantha Heller, many medicines in this group have stimulants which may cause heart trouble over time. They aren't strictly regulated by the FDA and it wasn't all that long ago that the original formulation of Hydroxycut was pulled from the market after several people had serious problems including liver injuries and there was even a death reportedly associated with the product. It has since been reformulated and put back on the market.
   
   
2. Tongue Patch Diet - For this plan, you visit a surgeon who sews a piece of mesh onto your tongue making eating so painful, you'll want to avoid it altogether. Instead, the doctor prescribes a liquid diet. This procedure was developed by Dr. Nikolas Chugay who believes this is a safer alternative to gastric bypass and lap-band procedures. He does say that the patch is removed after 30 days and that patients typically lose around 20 lbs. This is another example of a rapid weight loss plan that may have you losing too much too fast.
   
   
3. Weight Loss Gadgets - The diet patch, the Belly Burner, and the Vibro Belt Pro all fall into this category. The idea behind each of these are to help you burn fat by stimulating your muscles, often through electronic pulses or vibrations. The problem is, they typically only work one part of your body so they're not going to help you get healthier all over.
   
   
4. Detox Diets - These diets have you drinking all of your calories in order to cleanse your body of impurities and help you drop pounds fast. You've likely heard of the Master Cleanse, Blueprint Cleanse, or Fruit Flush Diet which are all varieties of this weight loss fad. Many of these cleanses were not designed as a weight loss plan, rather they are to cleanse your body of toxins, which means that they have diuretic and laxative effects. These diets send your body into starvation mode and your metabolism slows and sometimes to a dangerous rate. When you start eating solid foods again, you will also be more likely to gain weight back.
   
   
5. Meal Replacement Diets - Yum, cabbage soup... again. Meal replacement diets do just what they sound like, they advise you to replace one or more meals with their low-cal concoction. Common varieties are the cabbage soup diet, the Hollywood Cookie Diet, and the grapefruit diet. Typically, these diets advise you to eat their meal replacement for breakfast and lunch and then to eat a sensible meal for dinner. However, if you're hungry all day long, when it comes time for dinner you're going to want to eat more than a 'sensible' meal. Also, you're denying yourself nutrients that your body needs to function by not eating nutritious meals throughout the day.