Sodium: half the daily requirement is that the daily average up to 10-20g/zi (cca.4-8g/zi). Sodium plays an important role in the body: participate in the ion and acid-base balance. Source of sodium is table salt and animal foods. A regular diet without adding extra salt brings cca.2g sodium per day.
Potassium: daily quantity required is 2-4g/zi. Has several roles in the body: regulate ion balance, muscle contraction (including heart), transmission of nervous influx. Sources are dried vegetables, fresh and dried fruits, meat, eggs, fish.
Chlorine: the amount of chlorine depends on salt intake.
Calcium daily requirement is 0.65 g / day in adults and in children 1g/zi. Calcium enters the composition of bones and teeth, is an essential element for development. Has an important role in nerve transmission, muscle contraction, as well as in blood clotting. Lack of calcium produces rickets in children and adults rarefierea bones (osteomalacia) and osteoporosis attend. Severe shortage is manifested by muscle cramps (caw). The main source of calcium are milk and milk derivatives. The lower amount is found in eggs, dried legumes, some vegetables (cabbage, cauliflower), some fruit (lemons, oranges, nuts).
Phosphorus plays an important role in bone formation, in maintaining a normal body pH. The daily phosphorus is about 1, 8g/zi, derived from egg yolks, fish, dairy, pulses and cereals.
Magnesium in the body are part of enzymes, contribute to the achievement of normal muscle contractions in membrane function, regulates metabolism of calcium is needed daily intake of 18 mEq / day, the sources being milk, various viscera (liver, brain, pancreas, kidney , spleen), whole grains, fruits, potatoes.
Of micronutrients (ie those necessary in the body in small amounts) will give information only about some of the essential: iron, zinc, copper, iodine, cobalt.
Iron is essential in forming red blood cells, because in the main composition of red blood cells get proteins: hemoglobin, oxygen transport involved in body tissues. Iron needs increase greatly if the patient has chronic anemia secondary to blood loss. The main sources of iron are meat, milk and milk derivatives, eggs.
Zinc, copper, iodine, cobalt enzymes are part of an important role in regulating cell metabolism. Food intake is provided by a complex, balanced, plant and animal products. Also, these trace elements are also found in water.
August 25, 2010
nutrition