文章如下：
Vitamins areimportant to our health. Different vitamins are found in different foods -grains, vegetables and fruits, fish and meat, eggs and milk products. So whichfoods should be eaten to get enough of the vitamins our bodies need? Let uslook at some important, vitamins for the answer.
VitaminA helps prevent skin and other tissues from becoming dry. People who do not gelenough Vitamin A cannot see well in darkness. They may develop a condition thatdries the eyes. This can result in infections and lead to blindness. Vitamin Ais found in fish liver oil. It is also in the yellow part of eggs. Sweetpotatoes, carrots and other darkly colored fruits and vegetables containsubstances that the body can change into Vitamin A.
VitaminB1 is also called thiamine (硫胺). Thiamine changes starchy foods into energy. It also helps theheart and nervous system work smoothly. Without it, we would be weak and wouldnot grow. We also might develop beriberi (脚气病). Thiamine is found not just in whole grains like brown rice, butalso in other foods. These include beans and peas, nuts, and meat and fish.
VitaminC is needed for strong bones and teeth, and for healthy blood passages. It alsohelps wounds heal quickly. The body stores little Vitamin C. So we must get itevery day in foods such as citrus fruits, tomatoes and uncooked cabbage.
VitaminD increases levels of the element, calcium (钙) in the blood. Calcium is needed for nerve and muscle cells to worknormally. It is also needed to build strong bones. Vitamin D prevents thechildren's bone disease rickets (佝偻病). Ultraviolet light from the sun changes a substance in the skininto vitamin D. Fish liver oil also contains vitamin D. In some countries, milkproducers add vitamin D to milk so children will gel enough.
VitaminK is needed for healthy blood. It thickens the blood around a cut to stopbleeding. Bacteria in the intestines normally produce vitamin K. It can also be found in pork products,liver and in vegetables like cabbage, kale and spinach.