Vitamin C is an important micronutrient in the human diet. It has a role in sustaining memory, helping prevent cell mutations and premature aging, preventing oxidation of fatty foods, and supporting the immune system. Some people believe that vitamin C cures or stops the common cold, but there is no strong scientific evidence proving that this is true. What is more likely is that through its immune system-boosting power, vitamin C provides extra defense against cold-causing pathogens,  so it may ease the cold and perhaps shorten its duration, but it's not likely to prevent it. Most people should be able to get adequate vitamin C from a healthy, nutritionally optimized diet. If you're eating nothing but fast food, you probably aren't going to get a beneficial amount of vitamin C as part of your diet. However, simply changing your diet for the better can help you increase vitamin C intake. Since vitamin C counteracts some of the inhibitors in foods, such as phytates in whole grains and tannins in teas and coffee, increasing your vitamin C intake can also help optimize your diet for a healthier lifestyle. Stress can be brought about due to a depletion of vitamin C, and ongoing stress uses up vitamin C rapidly, so eating foods high in vitamin C or taking a vitamin C supplement when you are feeling stressed can be a positive contribution to your diet and well-being. If you are aware of what you are consuming and the micronutrients that those foods contain, you can adjust your diet to ensure that you are getting enough natural vitamin C. While you should always raise health concerns with your doctor or health professional directly, the following signs can accompany a vitamin C deficiency: bleeding gums and nose, poor healing of cuts, fatigue, and lowered immunity to infection. These symptoms do not necessarily indicate a vitamin C deficiency, but you can speak with your doctor if you are concerned.  A severe deficiency of vitamin C, in fact, can result in a disease called scurvy, which is caused when your body...

How would you rephrase that briefly using Vietnamese?
Tìm hiểu về vitamin C. Hiểu được vai trò giữa chế độ ăn và việc dung nạp vitamin C. Nhận thức mối quan hệ giữa vitamin C và căng thẳng. Nhận biết dấu hiệu thiếu hụt vitamin C. Nhận thức được rằng bạn cần bổ sung vitamin C mỗi ngày.