Since obesity has been announced as a huge problem, it has received a massive amount of the attention from many countries all around 
the world. Thanks to that, weight loss has become an industry in many countries, mainly in North America. Now, various people offer various diet plans, some effective, some not and some even dangerous. Amount of information and offers is massive and it’s very hard to filter really beneficial and money and time spending worth proposals.
There is a 5-Factor Diet, Atkins Diet, Bob Greene\'s Best Life Diet, South Beach Diet, Cabbage Soup Diet, Carbohydrate Addict\'s Diet, Anne Collin’s diet and now you have DASH diet and Fat Smash Diet and Size Zero Diet and … and it goes on!
Compiler or creator of each of these diet plans claims how effective his diet is and how fast it will drop your weight down. Some go to the extent of claiming that you will lose up to 10-12 lbs in a week whereas medical experts warn that such claims are ridiculous and weight loss of such proportions can come about only by losing water which is detrimental to the system. To add to this, usually after stopping to work on the diet plan for weight loss it is very possible to gain previous weight back if not even more.
Actually, all these plans are based on one principle! The body weight is contributed by fat, muscles, bones and water. Calorie intake is responsible for the body weight and if ingested calories exceed burned or used calories, body weight and fat is increasing. It’s simple as that. Increase metabolism so that stored fat can be burnt off; burn off the fat that is stored in the body by exercises and fat burning food. But remember to supply your body with the essential nutrients. Formula is very simple – used calories must be equal (to maintain the body weight) or exceed ingested calories.
Basically diet plans fall into three broad categories: the “fad diets”, those that are based on specially processed food and those that can be called as “natural diet” plans.
Fad diets
Can’t define what “fad diet” is; it is very subjective. This type of diets is known as very poor, ineffective. Generally fad diets provide very fast very quick results but they disappear just as quickly. Their claims for efficacy are generally not confirmed by any legitimate scientific studies. Often these diets are exhausting and starve the body with nutrients and vitamins. Fad diets can be carried out occasionally before some important occasion or meeting but in long term better to stay away from these diets.
Natural diets
The natural diet plan is based on use of food constituents that are normally in your diet; it recommends some of the constituents as being helpful and some others as being harmful from the point of view of weight loss. For example, it may recommend certain fish such as Sardines, herrings, etc as providing beneficial Omega 3 fatty acids or may recommend use of lean meat but not others such as pork; it may recommend low-fat skimmed milk but not the normal fresh milk. Natural diet is based on very clearly understood and recognized scientific knowledge.
Supplements and processed food ingredients
The third category of diet plans mentioned above is based on use of specially processed food ingredients or supplements; many consider this category as a scam or just a waste of time and money. It’s understandable, because of the high density of different products that offer unbelievable changes but some of them are really effective and based on scientific discoveries and specialists tests and researches.
