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Nutrients - Proteins

CARBOHYDRATES PROTEINS FATS FIBRE VITAMINS MINERALS SOURCES & REQUIREMENTS

Proteins are the structural components of the body forming the basis of cells, tissues and organs. They are a large group of organic compounds consisting of carbon, hydrogen, nitrogen and oxygen atoms. Some contain sulphur and phosphorus also. When the proteins are digested they break down into smaller units called amino acids. Of the 20 basic amino acids 12 can be manufactured by the body and the rest,  called the 'essential amino acids' must be obtained from food. 

Proteins help to repair worn out or diseased tissues and to build new ones. It is used in the formulation of hormone, enzymes, red blood cells and antibodies. It also provides amino acids necessary for growth of fetus in pregnancy and for the production of milk proteins during lactation. Proteins are widely found in foods derived both from plant and animal sources.  Plant sources include beans, peas, pulses, whole grains, nuts and oil seeds; while red meat, poultry, fish, milk, cheese, yogurt and eggs are obtained from animals. Red meat is a good source of essential amino acids and iron and is traditionally regarded as 'first class' protein. But too much consumption of red meat may be harmful as it is a major source of undesirable saturated fat. One can eat more fish or chicken without the fatty skin instead of excess red meat. Vegetarians can obtain plenty of both from plant sources, whole grain cereals and from low fat diary products. A protein deficiency especially in infants and growing children can cause growth retardation, severe wasting of muscle etc.

The dietary requirements of protein depend on age and physiological state.  A part of the dietary protein is utilised or wasted to meet the energy requirements. So calorie intake should be adequate enough to meet the protein need or its maximum utilisation, taking into account the above factor.

Nutrients

Requirements

Sources

Children
1200-2100 kcal

Adults
1900-3900 kcal

Protein

20-33g

45-55g

Legumes, grains,  nuts and seeds; dark leafy greens; eggs; dairy products

 





Questions of
 Questions & Answers
 1.  Posted on : 28.10.2015  By  :  vivek , Navi Mumbai View Answer (0) Post Answer
 

I m 21 years olg i m gymaholic my wet is 69 kg, per day how much protein i need for lean muscle gain?

 
 2.  Posted on : 3.2.2015  By  :  Ramji , Hyderabad View Answer (1) Post Answer
 

I am 77trs had cabag 15 years ago my blood sugar 90/118 take anti diabetics regularly do 2 km of cycling on cardi cycle my hbagvaries from 6.5to7 my wt is 67kgs please prescribe Diet sheet for me.

 
A1: 

My weight is 70kg and my height is 5 ft so which food i will use to reduced weight,Kindly assist me I will very much appreciate. Thanks. Khyati

  Posted By :khyati dave , Nairobi | On 23.6.2017
 3.  Posted on : 6.5.2014  By  :  Shashi Borah , Assam View Answer (1) Post Answer
 

I am a 26 years old and 5'6" feet indian man my weight is 76 kg. I want to loss my weight. Please give me suggestions.

 
A1: 

According to the weight chart, you are over weight by 10kg. In order to reduce weight you have to either increase your activity by excercise or decrease your food intake. please refer following links Calorie Needs https://www.webindia123.com/health/diet/calorie/calorie.htm , Weight Chart https://www.webindia123.com/health/diet/calorie/weight.htm , Calorie Calculation https://www.webindia123.com/health/diet/calorie/calculation.htm, Calore to gain/lose weight https://www.webindia123.com/health/diet/calorie/gain.htm

  Posted By :Admin , | On 26.5.2014
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