Cod liver oil: important source of vitamin D
Vitamin D, also known as Calciferol, is a fat-soluble vitamin (lipid solubility). It is obtained by eating some foods and also by transforming cholesterol by solar radiation.
Functions of vitamin D in the human body:
- Maintain phosphorus and calcium concentrations in the blood;
- Regulate bone metabolism and fixes calcium on bones and teeth;
- In children is fundamental for bone growth.
Health problems caused by Vitamin D deficiency:
- Rickets (in children): disease caused by a lack of vitamin D in the body. This disease is characterized by weak and soft bones, teething defects, retarded physical growth and poor absorption of phosphorus and calcium.
- Osteomalacia (in adults): weak and soft bones.
Main sources (foods rich in this vitamin):
- Milk and dairy products (cheese, yoghurt, butter, milk drinks, etc.);
- Cod liver oil;
- Egg yolk;
- Meat of some fish species (mackerel, herring and salmon, sardines and tuna);
- Cow liver.