1. Introduction

Atkins diet is the most famous low-carb diet and one of the best-known ketogenic diet. This diet increased public awareness by the book series, whose first part appeared in 1972. The diet is named after the developer, American Medicine, Dr. Robert Atkins (1930-2003). The mechanisms involved Atkins diet  are controversial. Robert Atkins, who studied diabetes, argued that the power would be based on ketosis: the body's insulin levels, aims to reduce by avoiding carbohydrates, which stimulate insulin secretion, and to favor proteins that enhance glucagon secretion: thus freed from the body storage of fat as raw material for gluconeogenesis. At the same time eating the fat trigger leptin production, and would maintain the saturation state: thus the body as if it will deceive not experiencing hunger, and it adjusted its consumption of energy involved, as often the case with low fat diet, and devoured the fat, either would go to full capacity for gluconeogenesis through the body's primary energy consumption and the excess is eliminated in the faeces, as can be seen in uncontrolled diabetes. Since the amount of insulin remains low, the body would not be able to store extra fat and lipogenesis, or a change in blood triglycerides and extra glucose inventory sitting in the fatty tissue even happen. Unequivocally that happens ketoacidosis, which occurs in uncontrolled diabetes, but studies have not confirmed that the Atkins diet ketosis would be an impressive mechanism.

Some recent studies have shown that the Atkins diet is based on the performance of its appetite-lowering effect when the diet follows the person receives less energy than a normal diet.

2.The diet

Atkins diet is started by a two-week-long induction, which allows food to contain carbohydrates 20 grams a day to enable rapid transition to ketosis. The idea is to reduce blood insulin levels as much as possible and increase the glucagon-volume, during periods in which the body's glycogen stores will be exhausted and Gluconeogenesis begins to take the body's storage of fat use. By keeping a minimum amount of insulin the body is like a "tricked" into believing that the food is insufficient, and because the blood does not contain insulin, the body is unable to initiate lipogenesis and storage of energy contained in food, but all the energy goes to consumption.

After the first two weeks of daily amount of dietary carbohydrate is raised five grams per each week  as long as the weight loss continues. Atkins a suitable carbohydrate will depend, inter alia, the amount of exercise. Physical activity is recommended because it stimulates and accelerates the metabolism, and because of the general condition remains good. Carbohydrate sources designed to favor low-glycemic index vegetables, and at this stage  begins the fat-and protein-oriented diet to change a little carbohydrate like direction.

3.Side effects

Atkins diet side effects are the first days of constipation, bad breath, headache and a strong ammonia-like smell, burning urine. The side effects disappear over time. From acid smelly breath one can say that the diet has too much proteinThis diet is a good idea to add fat as natural fats (like butter and olive oil) that are the main dietary source of energy.