Vitamin C:
Overview
Among all the vitamins, vitamin C seems to be the most omnipresent in the home—not just in bottled form but in most fruits and veggies that families stock up on. It’s been known to do wonders for the immune system, and is easily soluble. Therefore, even in excess amounts, it poses hardly any risk of overdose compared to other vitamins.
Vitamin C is a water-soluble vitamin that is necessary for normal growth and development. Water-soluble vitamins dissolve in water. Leftover amounts of the vitamin leave the body through the urine. That means you need a continuous supply of such vitamins in your diet.
Function :
Vitamin C is needed for the growth and repair of tissues in all parts of your body. It is used to:
- Form an important protein used to make skin, tendons, ligaments, and blood vessels
- Heal wounds and form scar tissue
- Repair and maintain cartilage, bones, and teeth
Vitamin C is one of many antioxidants. Antioxidants are nutrients that block some of the damage caused by free radicals.
- Free radicals are made when your body breaks down food or when you are exposed to tobacco smoke or radiation.
- The buildup of free radicals over time is largely responsible for the aging process.
- Free radicals may play a role in cancer, heart disease, and conditions like arthritis.
The body is not able to make vitamin C on its own, and it does not store vitamin C. It is therefore important to include plenty of vitamin C-containing foods in your daily diet.
For many years, vitamin C has been a popular remedy for the common cold.
- Research shows that for most people, vitamin C supplements or vitamin C-rich foods do not reduce the risk of getting the common cold.
- However, people who take vitamin C supplements regularly might have slightly shorter colds or somewhat milder symptoms.
- Taking a vitamin C supplement after a cold starts does not appear to be helpful.
Food Sources
All fruits and vegetables contain some amount of vitamin C.
Foods that are the highest sources of vitamin C include:
- Cantaloupe
- Citrus fruits and juices, such as orange and grapefruit
- Kiwi fruit
- Mango
- Papaya
- Pineapple
- Strawberries, raspberries, blueberries, cranberries
- Watermelon
Vegetables that are the highest sources of vitamin C include:
- Broccoli, Brussels sprouts, cauliflower
- Green and red peppers
- Spinach, cabbage, turnip greens, and other leafy greens
- Sweet and white potatoes
- Tomatoes and tomato juice
- Winter squash
Some cereals and other foods and beverages are fortified with vitamin C.
Smokers or those who are around secondhand smoke at any age should increase their daily amount of vitamin C an additional 35 mg per day.
Women who are pregnant or breastfeeding and those who smoke need higher amounts of vitamin C. Ask your doctor what amount is best for you.
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