Does Malnutrition cause weight gain? And why?!


Question: Does Malnutrition cause weight gain? And why?
I've heard that malnutrition can cause weight gain. Then why are the people in the poor places of Asia and Africa so deathly skinny? Do their bodies respond differently to malnutrition or something?

One of my Asian eats only rice, noodles, junk food and meat. Never any fruits or vegetables. Yet he is pretty underweight but manages to excel at sports. According to his parents, nutrients cause weight gain thus too much is not good. They are trying to make him eat nutritious foods but no luck so far.

My other friend, who is Caucasian, is a total health nut. She NEVER eats anything white, sugary or fatty. It's only lean meat, vegetables, low fat dairy, nuts, and whole grain for her. She is on the chubby side and is not exactly athletic but she manages to get her daily exercise. She wants to lose weight but again, no luck. I just don't get it. Isn't eating healthy supposed to make you lose weight?

Answers:

Right away it can, because your body needs energy so it starts to take from your muscle, leaving what it doesn't use in fat deposits. But after more time when your body needs more it goes after the fat, and then you're super skinny.



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Severe malnutrition causes low proteins in the body. The most bulky protein in albumin. If this is diminished to below 3g /100 ml of blood (30 g/L) the oncotic pressue falls and body retains water in the blood, interstitial space and in cells. This is the straight cause of some weight gain initially. However, there are many complicating factors, including loss of muscle. End result will be weight loss.
Please keep in mind that body weight is the resultant of what one eats, how much of it is retained and how much is used up in exercise and daily activities. A factor of retention potential is how much fiber is consumed. Fiber may push food waiting for absorption to be discarded as wastage in stools.
Food constituents absorbed can be "burnt" fast in some and slowly in others, depending on some hormones, like thyroid hormone.

Medicine



malnutrition is an incorrect or unbalanced intake of nutrients: proteins, fats, carbohydrates, vitamins and minerals. it may be caused by eating to little of particular nutrients, this may result in deficiency diseases. also eating too much of certain nutrients, consuming high amounts of high energy foods (fats and sugars) may result in development of obesity.
under-nutrition occurs when a person has an insufficient total intake of nutrients. total energy intake is usually inadequate and results in starvation or marasmus. eating healthy makes you lose weight yes, it's also about genes and it depends on how big are the portions.

one should always eat according to the food pyramid that is eating 6 portions of bread, pasta, rice, cereals and starchy vegetables. (wholemeal products) 4-5 portions of fruits and vegetables not more than 3 portions of milk and dairy products. not more than 3 portions of meat and alternatives, and one should always avoid eating sugars, fats, oils, salts.

1 porition is 100g.

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