Although they are different to the flu, having the symptoms of a cold-like a cough, sore throat and runny nose-can be bothersome. A severe cold can make you feel weak and ill too. Most colds are caused by viruses. Antibiotics are not effective against colds because they only fight bacteria.
Vitamin C Content. A 100-gram serving of orange or lemon provides you with 53 milligrams of vitamin C, which is 88 percent of the daily value of 60 milligrams per day. This serving equals either one small orange or slightly less than two lemons.
A 1-cup serving of raw apple juice has 23 milligrams of vitamin C per serving. The daily recommended intake of vitamin C is between 75 and 120 milligrams for all adults, although those who smoke or who are regularly exposed to second-hand cigarette smoke will need to increase their daily intake by 35 milligrams.