Minerals in food
Calcium[edit | edit source]
It is about 1200 g in the body, mainly in the bones. Its serum concentration of 'is 2.4-2.7 mmol / l' and is due to a balance between absorption from food, excretion urine and storage (release) in the bones. Its metabolism is regulated by PTH, thyroid hormones and adrenal hormones, sex hormones and vitamin D. Calcium function in the body: Calcium is part of bone and teeth, reduces neuromuscular excitability, is important for the proper functioning of the cardiac conduction system, necessary for clotting, is important in the prevention of colorectal cancer (bile acid binding). Calcium source: milk and dairy products, cereals, legumes, vegetables, poppies, hard drinking water. Daily requirement: 800 mg / day, in pregnant and lactating women 1800 mg / day.
- Lack
The result is osteomalacia, osteoporosis, rickets, increases neuromuscular excitability, tachycardia, blood clotting disorders, increases the risk of colon cancer.
Phosphorus[edit | edit source]
- Function
Together with calcium, it forms a skeleton and dental tissue, is part of phospholipids, phosphoproteins, nucleic acids, enzymes and a carrier of macroergic bonds. The level of phosphoric acid in the blood is normally 0.65-1.62 mmol / l;
- Source
Milk and dairy products, yeast, meat (parenchyma, organs), legumes.
- Recommended daily dose
1200 mg / day.
- Lack
Isolated phosphorus deficiency is virtually non-existent. Mostly, its deficiency is associated with a lack of calcium, which results in diseases such as osteoporosis, rickets, imbalance of biotransformation processes, disorders of energy transfer.
Magnesium[edit | edit source]
- Function
Mg is an important intracellular cation, part of many enzyme systems, reduces neuromuscular irritation. The level of magnesium in the blood is in the range of 0.66-0.94 mmol / l;
- Source
Vegetables (part of chlorophyll), potatoes, legumes.
- Recommended daily dose
300-400 mg / day.
- Lack
Damage and spasms of the vascular wall, disorders of elasticity membranes, increases neuromuscular excitability, tetanie, increases sensitivity to noise stimuli.
Sodium (EC) and potassium (IC)[edit | edit source]
- Function
They maintain equilibrium osmotic conditions.
- Source
Sodium is found in table salt and salted dishes.
Potassium can be found in vegetables, fruits, legumes, nuts.
- Recommended daily dose
Potassium: 2.5-4.0 g.
Sodium: daily intake should not exceed 5 g.
- Lack
The cause is a lack of fluids and their loss through sweating, diarrhea, manifestations - dehydration, hypotension, apathy, convulsions.
- Surplus
At + - hypertension, stomach cancer (with excessive salt intake) - irritates the gastric mucosa, increases cell proliferation and facilitates the action of carcinogens from food.
K + - decreased heart rate, slowed neuromuscular activity, high intake reduces BP.
Links[edit | edit source]
Related Articles[edit | edit source]
- Trace elements
- Trace elements in food
- Types of food
- Dietary fats
- Carbohydrates in food
- Proteins in food
- Microorganisms in food
- Contaminants in food
- Nutritional recommendations
Použitá literatura[edit | edit source]
Kategorie:Hygiena Kategorie:Patofyziologie Kategorie:Patobiochemie