Vitamin C is an essential water soluble vitamin that plays a critical role in numerous body functions. Vitamin C is essential for:
- Antioxidant protection
- Skin, hair and nail health
- Bone health
- Brain/Nervous System health
- Cardiovascular health
- Blood vessel formation
- Muscle formation
- Eye health
- Proper immune system function
- Balancing mood
- Kidney health
Despite popular belief, taking vitamin C for the common cold when symptoms present does not alter disease. Taking vitamin C on a regular basis does not decrease the incidence of the common cold but has been shown to decrease the duration and severity of the symptoms.
The Recommended Daily Intake (RDI) of vitamin C is 90mg daily for adult non-smoking men and 75mg a day for non-pregnant, non-smoking women. Of note, smokers require an additional 35mg per day of Vitamin C.
Acute vitamin C deficiency is known as Scurvy and can occur in as little as one month of little or no Vitamin C intake During the 18th century, Vitamin C deficiency was a common cause of illness and death in sailors on long voyages with little access to fruits and vegetables. History has it that Captain James Cook was one of the first to correlate a diet rich in fruits and vegetables to the prevention of Scurvy in his sailors.
Signs and Symptoms of Vitamin C deficiency include:
- Bruising
- Gingivitis
- Arthralgias
- Impaired wound healing
- Follicular hyperkeratosis (excess keratin development in hair follicles)
- Anemia
- Autoimmune disease
- Weakness
- Depression
- Anorexia
- Neuropathy
- Shortness of breath
- Low blood pressure
In developed countries, those at risk for inadequate Vitamin C intake are:
- People who are malnourished
- Alcoholics
- Smokers
- People who are exposed to second hand smoke
- Drug Addicts
- People living in poverty
- People with a diet very low in fruits and vegetables
- People with iron overload disorders
- People with malabsorption disorders
Humans are unable to synthesize Vitamin C therefore it is crucial that they obtain Vitamin C through their diet. Fruits and vegetables contain the highest amounts of vitamin C. There are numerous options to choose from including:
- Tomatoes
- Tomato juice
- Oranges
- Lemons
- Grapefruit
- Tangerines
- Potatoes
- Brussel sprouts
- Cauliflower
- Broccoli
- Strawberries
- Cabbage
- Spinach
- Oranges
- Red bell peppers
- Cantaloupe
- Kiwi
- Lemons
- Grapefruit
- Pineapple
- Dark leafy greens
Try a salad topped with roasted veggies and fresh fruit and you are well on your way toward obtaining your recommended vitamin C intake!
This article is for information purposes only and is not medical advice. Consult with your medical provider prior to any lab testing, diet changes or new supplement/medication.
Wondering what your vitamin status is? Check out ROOTINE.
References:
Institute of Functional Medicine Fact Sheet. Micronutrients: Vitamins. Accessed 2020
National Institutes of Health- Office of Dietary Supplements. Vitamin C. Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/
Uptodate.com. Pazirandeh et al. Introduction to Water Soluble Vitamins. September 2020.
All photos used with permission from Snappa.com