Weight loss is generally concerned with the physical fitness of a person ensured by reducing the mass of body. In fact, the whole mass of body is reduced by reducing the mean fluids in the body, connective tissues, bones, sinew and muscles. The whole body contains fats that must be burnt in anyway to make a person physically fit.
The obesity controlling pills mostly are based on the mechanisms in which either the fat is burnt or the appetite is reduced. Some pills also act as the blockers of fats. It means that when the food enters the digestive system, these blockers prevent the break down of food into energy and makes it move out of body without generating any fats in side. This mechanism works for weight loss, but valuable and desired energy for body is also lost in this way.
The food contains all the nutrients and fats which are needed to keep a person healthy but the blocker takes always all the diet ingredients with it. This can make a person weak instead of smart. There is always a difference between smartness and weakness. Smart people can be healthy as well as weak but weak people can not be healthy in any way. Sometimes obesity also makes a person weak.
The obese person finds it difficult to bear his own weight in such circumstances doctors and medical experts makes them use effective pills containing chemicals which readily reduce the weight in very few days. The medicines which reduce the weight contain different types of ingredients. Some use a mix of natural and chemical elements to reduce fats in the body of the user. Where as, some pills and capsules use purely herbal ingredients.
The medicines which only contain the chemicals which reduce weight are mostly those which are only used on the prescription of the doctors as they can be harmful for the health. Sometimes, drugs are also used to reduce weight. The drugs usually work on the brain and make the sure feel that the need for food is over making a person eat less.
It has been found by medical and health sciences research that such pills have side effects related to the working of mind. Drugs are liable to generate psychological disorders in a person and may become addictions. Hence weight loss can be achieved by multiple means but after the recommendation of a doctor.