It’s that time of year again—winter brings colder weather, seasonal bugs and a renewed focus on supporting our immune systems.
Many of us naturally reach for oranges or supplements, but vitamin C does far more than support immunity. This essential nutrient plays a key role in everything from skin health to iron absorption and overall wellbeing.
In this guide, we explore the health benefits of vitamin C, how much you need, and the best ways to include it in your diet.
What Is Vitamin C?
Vitamin C is a water-soluble vitamin, meaning the body does not store it and needs a regular daily supply through food or supplements.
It is also a powerful antioxidant, helping to protect cells from oxidative stress and supporting many vital functions in the body.
Health Benefits of Vitamin C
Vitamin C contributes to several important processes in the body.
Supports Immune Function
Vitamin C contributes to the normal function of the immune system and is often used during colder months to support seasonal wellbeing.
Helps Reduce Tiredness and Fatigue
Vitamin C contributes to normal energy-yielding metabolism and can help reduce feelings of tiredness.
Supports Skin, Hair and Collagen Production
Vitamin C contributes to normal collagen formation, which supports:
- skin
- blood vessels
- cartilage
- bones
This makes it an important nutrient for both appearance and structural health.
Protects Cells from Oxidative Stress
As an antioxidant, vitamin C helps protect cells from damage caused by free radicals.
Supports Iron Absorption
Vitamin C increases the absorption of iron, particularly from plant-based sources—making it especially important for those following vegetarian or vegan diets. If you're looking for an effective iron supplement, make sure it also includes Vitamin C to provide optimal absorption. We like Viridian Balanced Iron Complex
Supports Overall Recovery and Wellbeing
Vitamin C plays a role in tissue repair and general maintenance of health, particularly during times of stress or illness.
Recommended Daily Intake (NRV)
The Nutrient Reference Value (NRV) for vitamin C in the EU is:
- 80mg per day (adults)
- 1–3 Years: 15 mg/day
- 4–8 Years: 25 mg/day
- 9–13 Years: 45 mg/day
- 14-18 Years: 75mg (boys), 65mg (girls)
Some individuals may require higher intakes depending on lifestyle factors such as:
- stress
- illness
- smoking
- intense physical activity
Always follow product guidance when supplementing.
Dietary Sources of Vitamin C
Vitamin C is widely available in many everyday foods.
Fruits and vegetables:
- citrus fruits (oranges, lemons, grapefruits)
- berries
- peppers
- broccoli
- spinach
- potatoes (especially skins)
Additional nutrient-rich sources:
- leafy greens
- fermented foods (sauerkraut, kimchi)
- superfood berries (goji, mulberries, golden berries)
- cacao (nibs or powder)
- green superfood powders
Including a variety of these foods can help you meet your daily vitamin C needs naturally.
Should You Take a Vitamin C Supplement?
A balanced diet is usually the best way to get enough vitamin C. However, supplementation may be useful for:
- supporting immune health during winter
- periods of stress or fatigue
- those with limited fruit and vegetable intake
Looking to boost your intake? Shop vitamin C supplements on Evergreen.ie, available as capsules, liquids, gummies and sprays.
Liposomal Vitamin C
Liposomal vitamin C is a more advanced form of supplementation designed to enhance absorption. It uses tiny fat-like particles (liposomes) to help deliver vitamin C more efficiently into the bloodstream, making it a popular choice for those looking for higher-strength support. This form may be particularly useful during periods of increased demand, such as illness, stress or fatigue.
Learn more about how it works and whether it’s right for you in our guide to liposomal vitamin C.
How Vitamin C Fits Into Your Routine
Vitamin C works well alongside other nutrients, particularly:
- iron (for absorption)
- zinc (for immune support)
- vitamin D (seasonal immune support)
This makes it a common ingredient in immune-support formulas.
Final Thoughts
Vitamin C is one of the most versatile and important nutrients for everyday health. From supporting your immune system to maintaining healthy skin and aiding iron absorption, it plays a key role in keeping your body functioning at its best.
By combining a balanced diet with targeted supplementation where needed, you can ensure you’re getting enough vitamin C all year round.
Related Reading
For a broader overview of essential nutrients, read our guide to essential vitamins and how to get them.
Checked and updated: 5 September 2021
