Vitamin A is familiar to everyone. And it is a common type of vitamin that exists in many kinds of plants. It can be easily found in animal organs as well. Generally it is suggested for everyone to ingest adequately because it does goods to our health.
Vitamin A is familiar to everyone. And it is a common type of vitamin that exists in many kinds of plants. It can be easily found in animal organs as well. Generally it is suggested for everyone to ingest adequately because it does goods to our health.
There are generally two kinds of food containing a large amount of vitamin A. The first type is provitamin A or all kinds of carotenes. In other words, vitamin A exists in many plants, such as green vegetables, yellow vegetables and fruit. Spinach, clover, pea, sweet potato, carrot, green pepper and pumpkin are rich in this vitamin. The other source is from animals. This particular type can be digested and used by the human body directly. It exists mainly in animal livers, milk and eggs.
According to food analysis, every 100 grams of green vegetables contain about 12000 units of vitamin A. These include collard, spinach and mangle. And sword bean, broccoli, carrot, pumpkin, apricot, or yam can provide 5000 units, which are the exact amount for an adult per day. A portion of tomato, pea, celery, lettuce or asparagus can averagely offer near 2000 units. Except for apricot, most types of yellow fruits contain less than 400 units. However, those plants which the colors have faded or are not clean yet lack this vitamin.
From this analysis, we can easily find that animal livers are rich in this vitamin. So are animal kidneys. The muscles are not able to keep such vitamin. Barbecue and fried meat do not contain it, either. The amount of this vitamin in eggs and milk depends on the ingestion of animal itself. Every liter of milk contains 500 to 7000 units, with an average of 2000 units. Cod liver oil is the largest source of vitamin A in business. This amount of this vitamin in animal liver depends largely on the age and the food that particular animal ingests. Other than the livers of polar bears, the liver oil from the 100-year-old python in London Zoo was once considered to be the most precious source. The amount in halibut liver is higher than that in cod liver. It is because that halibut is usually older than cod when it is on the market. The halibut is old enough that it ingests much more green seaweeds. For the same reason, grown-up cattle and sheep have more than younger ones.
Superior Fruit: Blueberry
Nowadays, people, especially women, always spare no effort to loose weight. Some people choose to be on a diet. Some people would like to have plastic surgeries. But both methods are not always satisfactory. Experts tell us that the best way to lose weight is to eat healthy and helpful food. Recently, scientific research has indicated that eating blueberries as snacks can help lose weight.
Fruit That Can Help Lose Weight
Fruit is generally good for health. It is embraced by people because it tastes good and it provides nutrition for the human body. Recently, scientists tell us that it also can help lose weight. Today let me introduce you seven kinds of fruit that can help people lose weight.
The Best Berry for Health Care
Blueberry is regarded as one of the five kinds of healthy food in the world by the United Nations Food and Agriculture Organization. It is rich in nutrition like anthocyanin, vitamins and amino acids. It is without doubt that it is quite nutritious and good for health. Therefore, it has become the best seller in American and European markets. It is also considered to be the best berry for health care in the 21st century.
