Unlocking the Power of 
Vitamin C for Your Health

You’ve probably been told to drink orange juice when you feel a cold coming on or to eat citrus fruits to boost your immune system. These recommendations stem from the fact that citrus fruits, along with other foods, are rich sources of vitamin C. But did you know that vitamin C also plays a vital role in supporting cardiovascular health? Let’s explore the wonders of vitamin C and its multitude of health benefits.

Understanding Vitamin C

Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a crucial role in various physiological functions. It acts as a powerful antioxidant, scavenging free radicals and protecting cells from oxidative damage. Additionally, vitamin C is involved in collagen synthesis, immune function, wound healing, and the absorption of iron from plant-based foods.

Recommended Intake

The Recommended Dietary Allowance (RDA) for vitamin C varies depending on age, gender, and other factors. For adults, the RDA ranges from 75 to 90 milligrams per day for females and males, respectively.

The RDA is the minimum of each nutrient that is needed to maintain health in people that are already healthy.

However, in many cases, nutrients are used therapeutically to prevent or manage specific health conditions or to achieve certain health goals beyond basic nutritional requirements. Therapeutic doses of supplements may exceed the RDA to achieve desired therapeutic effects and optimize health outcomes.

Health Benefits of Vitamin C

Immune Support

Vitamin C enhances immune function by stimulating the production of white blood cells and antibodies, helping the body fight off infections and illnesses. (1)

Antioxidant Protection

As an antioxidant, vitamin C neutralizes free radicals, reducing oxidative stress and lowering the risk of chronic diseases such as heart disease, cancer, and neurodegenerative disorders. (2)

Collagen Synthesis

Vitamin C is essential for collagen production, a protein that provides structure to the skin, bones, cartilage, and blood vessels. Adequate vitamin C intake promotes skin health, wound healing, and overall tissue repair. (3)

Cardiovascular Support

Studies have shown that vitamin C may help lower blood pressure and reduce the risk of cardiovascular disease. As an antioxidant, vitamin C helps protect against oxidative damage to blood vessels, promoting their health and flexibility. Additionally, vitamin C improves endothelial function, which is crucial for maintaining healthy blood flow and preventing atherosclerosis. (4)

Iron Absorption

Vitamin C enhances the absorption of non-heme iron from plant-based foods, improving iron status and preventing iron deficiency anemia. (5)

Food Sources

Vitamin C is abundant in various fruits and vegetables, particularly citrus fruits like oranges, lemons, and grapefruits. Other excellent sources include strawberries, kiwi, bell peppers, broccoli, Brussels sprouts, and spinach. Consuming a diverse range of these foods ensures adequate vitamin C intake.

Signs of Deficiency and Toxicity

Vitamin C deficiency, known as scurvy, is rare in developed countries but can lead to symptoms such as fatigue, weakness, swollen gums, and easy bruising. 

Key Takeaways

Vitamin C plays a crucial role in immune function, antioxidant protection, collagen synthesis, cardiovascular support, and iron absorption.

Consuming a balanced diet rich in vitamin C-containing foods is the best way to meet your nutritional needs and support overall health.

Incorporating vitamin C-rich foods into your daily diet can enhance your well-being and vitality. Remember, a colorful plate is often a nutritious plate, so aim to include a rainbow of fruits and vegetables in your meals to reap the benefits of this essential nutrient.

TIKVA HEART uses 1000mg of Vitamin C.

One study published in the American Journal of Clinical Nutrition examined the association between dietary vitamin C intake and risk of coronary heart disease (CHD) in women. The study found that higher intakes of vitamin C were associated with a lower risk of CHD, suggesting a potential protective effect of vitamin C against cardiovascular disease. (6)

Another study published in the journal Nutrients investigated the effects of vitamin C supplementation on endothelial function, which is important for maintaining healthy blood vessels and preventing cardiovascular disease. The study found that vitamin C supplementation improved endothelial function, suggesting a potential role in promoting heart health. (7)


[1] (Hemilä H, Chalker E. Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev. 2013;1:CD000980. doi:10.1002/14651858.CD000980.pub4)


[2] (Carr AC, Maggini S. Vitamin C and Immune Function. Nutrients. 2017;9(11):1211. Published 2017 Nov 3. doi:10.3390/nu9111211)

[3] . (Pullar JM, Carr AC, Vissers MCM. The Roles of Vitamin C in Skin Health. Nutrients. 2017;9(8):866. Published 2017 Aug 12. doi:10.3390/nu9080866)

[4] (Carr AC, McCall C. The Role of Vitamin C in the Treatment of Hypertension. Nutrients. 2017;9(9):E958. doi:10.3390/nu9090958)

[5] . (Hurrell R, Egli I. Iron bioavailability and dietary reference values. Am J Clin Nutr. 2010;91(5):1461S-1467S. doi:10.3945/ajcn.2010.28674F)

[6] (Osganian SK, Stampfer MJ, Rimm E, et al. Dietary carotenoids and risk of coronary artery disease in women. Am J Clin Nutr. 2003;77(6):1390-1399. doi:10.1093/ajcn/77.6.1390)

[7] (Ashor AW, Lara J, Mathers JC, Siervo M. Effect of vitamin C on endothelial function in health and disease: a systematic review and meta-analysis of randomised controlled trials. Nutrients. 2016;8(9):E531. doi:10.3390/nu8090531)

My cart
Your cart is empty.

Looks like you haven't made a choice yet.