Vitamin C
Vitamin C is present in most diets, particularly in fruits and vegetables containing high amounts of it, such as lemon, oranges, kale, and spinach. This water-soluble vitamin is an effective antioxidant that helps with bodily processes such as the immune and nervous systems. Vitamin C has been shown to reduce the risk of developing common colds and other complications associated with them. It also acts as a natural antihistamine, reducing allergy-related symptoms, some of which may cause a stuffy nose.
Besides fruits and vegetables, over-the-counter supplements can also be bought and consumed over a period of time. Overconsumption of vitamin C can cause several side effects, which include nausea, heartburn, stomach cramps, fatigue, and headache. Typically, a single tablet of vitamin C daily is enough, whereas the upper limit is 2,000 mg per day. Although it will vary depending on the person’s weight and age and the brand of the supplement.
Consumption of vitamin C that is higher than the upper limit can increase the formation of kidney stones if consumed by a person with existing kidney disease or a history of kidney stones.
