Nutrition 8: nutritional requirements

Here we meet again in our short medical articles full of important information about health and fitness.
After we knew subdivisions of nutrients and how we actually digest and metabolize them. So let us go deeper in that health topic and talk in this amazing health article about daily nutritional requirements, daily energy requirements and some causes of under nutrition.
First of all, I will talk about adult daily nutritional requirements. Every day adult needs about: (fig.1)
·        1 liter of water
nutritional requirements
·         50-100 gm of carbohydrates
·         50 gm of proteins
·         1-5 gm of sodium, potassium, chloride and essential fatty acids
·         1 gm of calcium and phosphorus
·         50 mg vitamin C
·         15 mg Niacin (Vit. B3) and vitamin E
·         1-2 mg vitamin A, thiamine (Vit. B1), vitamin B2 and Vitamin B6
·        200 µg folic acid
·        2-10 µg vitamin B12, Vitamin D and Vitamin K
Wow, long list of important requirements every day as you see in this list you need some elements in grams, some in micrograms and others in milligrams. But all are the same in their importance as if we do not get efficient amount of vitamin D we will get secondary osteoporosis and go on.
Secondly, daily energy requirements are really variable from person to person according to their gender, occupation and age as follow:
  • ·        Male office worker will need 2500 Kcal.
  • ·        Male farmer will need 3000 Kcal.
  • ·        Male doing heavy work will need 3500 Kcal.
  • ·        House wife will need 2000 Kcal.
  • ·        Female in developing countries will need 2250 Kcal.

Here all should notice that any excess calories will be stored in our bodies leading to overweight and if you get less calories than you need, your body will use your fat or muscle proteins for energy leading to undernutrition.
As a medical advice keep your meal balanced.
Finally, there are many causes of undernutrition (fig.2) ; I will mention some of them:
  • 1.     Insufficient food as in poor areas
  • 2.     Anorexia
  • 3.     Malabsorption
  • 4.     Persistent vomiting
  • 5.     Persistent regurgitation
  • 6.     Cases of increasing basal metabolic rate as thyrotoxicosis.
  • 7.     Cases of losing calories as diabetic mellitus
  • 8.     Cachexia as in cancer patients

It is a short medical article as I thought but full of latest information about health and fitness that really gave me a headache. But we still in the beginning of our course so keep reading more of our medical articles to know the diseases and diet therapy and more in my next medical articles.

good bye for now
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