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The Benefits of Vitamin C – Dr. Sem Ravy
Vitamin C is one of the safest and most effective nutrients. Though it may not be the cure for the common cold, the benefits of vitamin C may include protection against immune system deficiencies, cardiovascular disease, prenatal health problems, eye disease, and even skin wrinkling. The tolerable upper intake level, or the maximum amount you can take in a day that likely won’t cause harm is 2,000 mg a day for adults.
A study published in Seminars in Preventive and Alternative Medicine that looked at over 100 studies over 10 years revealed a growing list of possible benefits of vitamin C.
Vitamin C has received a great deal of attention, and with good reason. Higher blood levels of vitamin C may be the ideal nutrition marker for overall health. The more we study vitamin C, the better our understanding of how diverse it is in protecting our health, from cardiovascular, cancer, stroke, eye health, and immunity to living longer.
INTRO 00:05
HOW MUCH VITAMIN C IS ENOUGH?
VITAMIN C’S ROLE IN THE BODY
THE HEALTH BENEFITS OF VITAMIN C
HOW TO GET MORE VITAMIN C IN YOUR DIET
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The Benefits of Vitamin C Vitamin C is one of the safest and most effective nutrients. Though it may not be the cure for the common cold, the benefits of vitamin C may include protection against immune system deficiencies, cardiovascular disease, prenatal health problems, eye disease, and even skin wrinkling. The tolerable upper intake level, or the maximum amount you can take in a day that likely won’t cause harm is 2,000 mg a day for adults. A study published in Seminars in Preventive and Alternative Medicine that looked at over 100 studies over 10 years revealed a growing list of possible benefits of vitamin C. Vitamin C has received a great deal of attention, and with good reason. Higher blood levels of vitamin C may be the ideal nutrition marker for overall health. The more we study vitamin C, the better our understanding of how diverse it is in protecting our health, from cardiovascular, cancer, stroke, eye health, and immunity to living longer. HOW MUCH VITAMIN C IS ENOUGH? The safe upper limit for vitamin C is 2,000 mg a day, and there is a great track record with strong evidence that taking 500mg daily is safe. But keep in mind that while many people may not always get the optimal level of vitamin C, having a vitamin C deficiency is very rare in the U.S. and many other countries. Vitamin C deficiency is mainly seen in malnourished adults. In extreme cases, it can lead to scurvy, characterized by weakness, anemia, bruising, bleeding, and loose teeth. There is no real downside to taking a 500 mg supplement, except that some types may irritate the stomach. That’s why he recommends taking a non-acidic, buffered form of the vitamin. Food is the best way to get all your nutrients. Along with vitamin C, you’ll get other vitamins and minerals, as well as fiber if you’re eating fruits, vegetables, or other produce. A cup of orange juice or a half-cup of red pepper would be enough to meet your recommended daily intake of vitamin C. To reach 500 mg, you could turn to all of these foods and beverages: 1. Cantaloupe: 1 cup, or 8 ounces of cantaloupe contain 59mg of Vitamin C 2. Orange juice: 1 cup of orange juice contain 97mg of vitamin C 3. Broccoli cooked: 1 cup of Broccoli cooked contain 74mg of vitamin C 4. Red cabbage: a half-cup of red cabbage contain 40mg of vitamin C 5. Green pepper: a half-cup of green pepper contain 60mg of vitamin C 6. Red pepper: a half-cup of red pepper contain 95mg of vitamin C 7. Kiwi: 1 medium kiwi contain 70mg of vitamin C 8. Tomato juice: 1 cup of tomato juice contain 45mg of vitamin C. VITAMIN C’S ROLE IN THE BODY Vitamin C, also known as ascorbic acid, is necessary for the growth, development and repair of all body tissues. It’s involved in many body functions, including formation of collagen, absorption of iron, the proper functioning of the immune system, wound healing, and the maintenance of cartilage, bones, and teeth. Vitamin C is one of many antioxidants that can protect against damage caused by harmful molecules called free radicals, as well as toxic chemicals and pollutants like cigarette smoke. Free radicals can build up and contribute to the development of health conditions such as cancer, heart disease, and arthritis. The body doesn’t store vitamin C, so overdose is not a concern. But it’s still important not to exceed the safe upper limit of 2,000 mg a day to avoid stomach upset and diarrhea. Vitamin C is one of the “water-soluble” vitamins. Because your body doesn’t store them, you need to keep them in your diet all the time to maintain healthy levels. Eat vitamin-C-rich fruits and vegetables raw, or cook them with minimal water so you don’t lose some of the water-soluble vitamin in the cooking water. Vitamin C is easily absorbed both in food and in pill form, and it can enhance the absorption of iron when the two are eaten together. THE HEALTH BENEFITS OF VITAMIN C No one vitamin can override serious health problems. They often work together, and other lifestyle habits, like getting enough sleep and exercise, and not smoking are key. THE RESEARCH SHOWS THAT VITAMIN C MAY OFFER HEALTH BENEFITS IN THESE AREAS 1. STRESS A deficiency in vitamin C is associated with many stress related disease. It is the first nutrient to be depleted in people who drink too much alcohol, smoke, or have obesity. And because vitamin C is one of the nutrients sensitive to stress, maintaining levels of vitamin C can be an ideal marker for overall health. 2. COLD When it comes to the common cold, vitamin C is not a cure, but some studies show that it may help prevent more serious complications. There is good evidence taking vitamin C for colds and flu can reduce the risk of developing further complications, such as pneumonia and lung infections. 3. STROKE Although research has been conflicting, one study in the American Journal of Clinical Nutrition found that those with the highest concentrations of vitamin C in their blood were associated with 42% lower stroke risk than those with the lowest concentrations. The reasons for this are not completely clear, but what is clear is that people who eat plenty of fruits and vegetables have higher blood levels of vitamin C. People who consume more fruit and vegetables will not only have higher blood levels of vitamin C, but higher intake of other nutrients potentially beneficial to health, such as fiber and other vitamins and minerals. 4. SKIN AGING Vitamin C affects cells on the inside and outside of the body and it’s antioxidant properties can be beneficial when it comes to aging. A study published in the American Journal of Clinical Nutrition examined links between nutrient intakes and skin aging in 4,025 women aged 40 to 74. It found that higher vitamin C intakes were associated with a lower likelihood of a wrinkled appearance, dryness of the skin, and a better skin-aging appearance. In addition, topical treatments with Vitamin C have been shown in some studies to reduce wrinkles. Other studies have suggested that vitamin C may also play a role in: • Improving macular degeneration. • Reducing inflammation. • Lowering the risk of cancer and cardiovascular disease. HOW TO GET MORE VITAMIN C IN YOUR DIET You’ll get vitamin C from many fruits and vegetables. The foods richest in vitamin C are citrus fruits, green peppers, strawberries, tomatoes, broccoli, white potatoes, and sweet potatoes. Other good sources include dark leafy greens, cantaloupe, papaya, mango, watermelon, brussels sprouts, cauliflower, cabbage, red peppers, raspberries, blueberries, winter squash, and pineapples. There is no one silver bullet vitamin, mineral, or nutrient. It is all about the big picture! And eating a varied diet rich in all the nutrients is the best strategy for good health. Take a daily multivitamin, because most people don’t get enough of several nutrients. And to curb colds and flu, don’t forget to wash your hands often.
