The bulk of evidence supports that vitamin C can reduce the duration and severity of a cold. However, the evidence of whether it can prevent the common cold is not convincing. It has, however, been suggested that vitamin C may reduce the incidence of colds in some particularly vulnerable segments of the population, such as those with low dietary intakes of vitamin C. Citrus fruits offer an array of essential nutrients and compounds including phytochemicals. They can be used widely besides just eating the normal oranges and grapefruits. Lemons can be squeezed for fresh juice that we can use for a variety of things like salads, vegetables, rice and to make salad dressings.
Tomatoes are great for salads, sandwiches, vegetables, sauces, etc.
Just remember, some people may have problems with these fruits because of their acid content. Advances in nutrition research have widened our knowledge about the important link between nutrition and health. As a result, diet therapy and nutrition education are constantly being updated. The authors have checked with sources believed to be reliable in their efforts to provide information that is complete and generally in accord with the standard accepted at the time of publication. Readers are advised to corroborate the information contained herein with other sources.