Natural process of weight loss

In our body there are some natural process or reaction causing weight loss. There are various theories or better to say processes going in our body which is responsible for wxcess fat loss. Some of these theories are

Lipolysis or breakdown of fat causes weight loss

Lipolysis is the metabolic process which results in freeing fats from the reserved stores of body thus causing weight loss. Low levels of insulin which activate the enzyme triglyceride lipase, which is responsible for evicting fatty acids from adipose tissues which is the storage of fats by bringing them in the bloodstream and there these fats are burnt in order to get energy for the body.

Thus due to the usage of stored lipids for the energy requirements of the body there is a weight loss. During starvation one can survive for few days due to this stored fats which provides energy for survival but person looses weight.

Calorie theory for weight loss

Calorie is not a new term as it is the amount of energy needed to raise the temperatureof one gram of water from 14 degree C to 15 degree C. Our body's temperature is maintained at 98.6 F and to maintain this temperature energy is required. Furhter for eating and digesting too energy is required. Energy requirement vary from person, sex and individual requirement according to their work.

In an individual for doing all the fuctions if 2800 calories ir required and the person is taking only 2000 calories, this 800 calories are compensated from fat reserves thus weight loss occurs due to lipolysis. This theory is based on assumption that there is no energy loss, also many person are there who consume heavy calories but less fat.

A study was held in United Stateswhich revealed that Americans were consuming 4% less calories and 11% less fats than previously. As concerns free fat foods, in 10 years, their consumption rose from 19 to 76%. In spite of this during the same period obesity in US increased by 31%.

In India, about 20% of the people have become obese in the past 20 years even if for the most part remained vegeterian, have moderate calorie consumption and have not really changed their lifestyles and eating habits.

All this concludes that although theoritically, the calorie theory might seem logical, but this does not mean to be true always practically.

Hyperinsulinism and weight loss

Hyperinsulinism or high blood sugar seems to be a functional cause of weight gain. Hyperinsulinism is the excessive pancreatic secretion of insulin hormone. Insulin lowers blood sugar levels during metabolic process and digestion.

In all cases of obesity, regardless of species and mechanism, hyperinsulinism is always preent, and this hyperinsulinism is directly proportional to body mass index (BMI)which measures the degree of excess weight. Excess insulin results in weight gain and conversely, reduced insulin results in weight loss.

Thus these are the general theories of weight loss, but these theories does not apply to certain conditions like ppostpartum weight loss or weight loss due to any illness.

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