Common colds are still one of the most common diseases, especially when erratic weather and polluted environments reduce resistance. Among supportive measures, vitamin C is often chosen by many people with the expectation of helping to prevent and treat colds. However, according to experts, vitamin C is not a specific medicine as many people mistakenly believe.
Vitamin C helps boost immunity
Vitamin C (ascorbic acid) is an essential nutrient for the functioning of the immune system. This substance supports the function of white blood cells, an important force that helps the body fight against bacteria and viruses. In addition, vitamin C also has antioxidant effects, contributing to protecting cells from damage.
Dr. Tushar Tayal, Deputy Director of the Department of Internal Medicine, Birla CK Hospital (Gurugram, India) said that vitamin C is commonly used in supporting the treatment of colds thanks to its role in supporting the immune system. However, he affirmed that vitamin C cannot completely cure the common cold.
According to Dr. Tayal, regular vitamin C supplementation can help shorten the duration of illness and reduce the severity of symptoms, especially in people with vitamin C diets or who are frequently under physical pressure.
Vitamin C does not completely prevent colds
Many studies show that vitamin C supplementation does not significantly reduce the risk of colds in the community in general. However, vitamin C can bring certain benefits to some groups such as athletes, heavy laborers or people who are often stressed, helping to reduce the frequency of illness.
Experts recommend that vitamin C should be used regularly as a long-term support measure, instead of just taking high doses when symptoms have appeared. Using large doses of vitamin C immediately after a cold only brings limited effectiveness.
Prioritize natural sources of vitamin C
Dr. Tushar Tayal recommends supplementing vitamin C mainly from natural foods such as oranges, lemons, guavas, kiwis, strawberries, bell peppers and broccoli. These foods not only provide vitamin C but also supplement many other nutrients, helping to enhance overall health.
Be careful with high doses
Vitamin C is relatively safe when used in the correct dose. However, prolonged high dosage use can cause digestive disorders and in some rare cases, increase the risk of kidney stones. People with kidney disease or undergoing treatment should consult a doctor before supplementing.
According to experts, vitamin C only works best when combined with a healthy lifestyle, including a balanced diet, getting enough sleep, drinking enough water and maintaining personal hygiene.
