Even though vitamin C may not shorten the duration of your illness, don't ditch citrus fruits altogether. The soft white skin found on oranges, grapefruit, lemons, and limes contains flavonoids, which increase immune system activity.
Even though vitamin C may not shorten the duration of your illness, don't ditch citrus fruits altogether. The soft white skin found on oranges, grapefruit, lemons, and limes contains flavonoids, which increase immune system activity.
3 Comments