Final answer:
Vitamin C supplements may reduce the duration and severity of the common cold, especially when taken in high doses. Citrus fruits are excellent natural sources of vitamin C. Stress management is also important in preventing colds, suggesting a link between stress levels and susceptibility to viral infections.
Step-by-step explanation:
Effects of Vitamin C on Cold Duration
Taking vitamin C supplements has been a subject of much debate concerning its effects on the common cold. Research indicates that high doses of vitamin C can reduce the duration and severity of a cold. The citrus fruits, such as lemons and oranges, are excellent sources of vitamin C alongside other foods like green vegetables and berries. The daily requirement differs from age to age, with infants needing 30 mg and adults requiring around 70 mg.
Regarding the common cold, which is mostly caused by rhinoviruses, symptoms like coughing, sore throat, and fever generally resolve within seven to ten days. Zinc has also been studied for its effectiveness in treating cold symptoms, particularly when administered within 24 hours of symptom onset.
Lastly, it is important to note that stress can increase susceptibility to the common cold. Therefore, maintaining a strong immune response and managing stress levels, alongside nutritional supplementation, such as taking vitamin C, can be strategies to consider in the prevention and management of colds.