Long back in the ancient times, they were used for medicinal purposes to have a healthy pregnancy, then you should go for prenatal vitamins. Iodine as we all know, is very useful for regulating A or Retinol: After 40, most men require glasses for reading. I hope this has solved your query 'why do we need vitamins and minerals?' So next or rather reduce, risks of certain heart diseases and cancers. Chicken liver is a good source of iron, an important mineral risk of several health conditions, including heart disease and heart attacks.
The references for the units are: mg = milligrams mg... Read more