Liver & Obesity: - liver's function in our body is very important for its role in the metabolism of fats. Fat is required for heat & energy in our body, the liver not only breaks the fat with the help of the digestive pancreatic juice from the pancreas, but also converts the excess carbohydrates into fat for storage. When an individual takes in more calories than are required they are stored as fat, even if obtained from carbohydrates or proteins. When fat is required for energy it is withdrawn from this storage & carried to the liver, to be split into substances that re far soluble.
Insulin is a hormone produced by the pancreas during its endocrine function. Insulin is required to burn the glucose. Liver stores excess glucose that circulates in blood. With the help of insulin, liver converts this excess glucose into a substance known as glycogen for storage until necessity arises. When sugar is required, the glycogen is converted back into glucose & fed into the blood. An obese person has the tendency to overeat. Appetite cannot be controlled in nine out of ten obese person. If there is a history of diabetes in the family & if the person is already obese & is used to consume fats & carbohydrates in excess, then the insulin produced becomes in sufficient for its conversion and the liver naturally suffers a set back too. That is one of the many reasons why persons who are obese are advises to keep away from sweets and fats as much as possible.

Kidney & Obesity: - Kidneys are organs of elimination of waste products from the body. They are two in number & are located on either side of the lower spine. Kidney has a plentiful supply of blood vessels. It has fine filters & performs the tough job of filtering twice the amount of blood in the body every hour. It does not allow the large particles of essential proteins and red cells to pass through the filter. Most of the fluid is re-absorbed. Essential glucose, amino acids, hormones & other vitamins are returned to the blood stream after absorption. The excess of these substances is discarded through the urine. More fat tissues the body contains, the greater the task of elimination. So for a person of obese, kidney disease tend to develop easily.

Muscles & Joints Pain: - Excess weight interferes with the skeletomuscular activities. All the weight-bearing joints are over burdened due to the excess weight. Rheumatism, gout & arthritis are common in those who are overweight. It may be argued that these disorders affect even those who are not obese & sometimes even extremely thin persons suffer from these disorders. But along with these diseases, the damage to the joints & bones is greater in obese than in non-obese persons.
Obesity also results in impotency in some cases. If it occur at a very young age, with activities & exercise being nil, it implies very poor health & loss of energy. This, in many cases, results in the loss of vigor & leads to impotency.