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Vitamin C - How to Supplement It Correctly?

Bệnh viện HIU· May 22, 2026· 3 min read
Vitamin C - How to Supplement It Correctly?

Vitamin C (also known as ascorbic acid) is one of the important vitamins for health. However, the body cannot synthesize vitamin C on its own. So how should vitamin C be supplemented correctly? Let's find out.

The Important Role of Vitamin C in the Body

Vitamin C is one of the 13 essential vitamins for health. It is considered an antioxidant that helps protect the body's tissues.

According to many scientific studies, vitamin C contributes to the development of bones, blood vessels, and connective tissue. Vitamin C is not just a nutrient but also "super energy" for the body and mind.

  • Boosting the immune system: Vitamin C is known for its ability to boost the immune system, helping the body fight harmful bacteria and viruses. In particular, it plays an important role in the production of immune cells, helping the body maintain strong health. Additionally, vitamin C also promotes wound healing and rapid scar formation.

  • Supporting iron absorption: Vitamin C helps enhance the absorption of iron from food, thereby helping prevent iron deficiency and reducing the risk of conditions related to low iron levels.

  • Supporting energy and mental well-being: Vitamin C plays an important role in energy production, helping the body's metabolism of food. It also supports the function of the nervous system. This can help boost mental energy, reduce stress, and improve concentration.

  • Antioxidant effects and maintaining healthy skin: As a powerful antioxidant, vitamin C helps protect cells from damage caused by free radicals. This is significant for maintaining skin health, slowing the aging process, and helping to brighten skin tone.

  • Supporting muscle and connective tissue recovery: Vitamin C is involved in the production of collagen, an important protein that helps maintain the elasticity of muscles, skin, and connective tissue. This is important for recovery after injury and for maintaining healthy muscles.

Daily Vitamin C Requirements

Vitamin C is found in vegetables and fruits such as guava, orange, lemon, strawberry, grapefruit, kiwi, yellow bell pepper, papaya, and broccoli, parsley...

Vitamin C is a water-soluble substance, so it can be supplemented through daily diet combined with water-soluble vitamin supplements. The recommended daily vitamin C intake is as follows:

  • Children under 6 months: 25mg/day

  • Children from 6 months to 6 years: 30mg/day

  • Children from 7 to 9 years: 35mg/day

  • Children from 10 to 18 years: 65mg/day

  • Adults: 70mg/day

  • Pregnant and breastfeeding women: 80-90 mg/day

Note that when supplementing vitamin C, everyone should drink enough water, about 1.5-2 liters per day, so that the ascorbic acid can dissolve and be easily absorbed by the body.

Although vitamin C offers many benefits, a balanced diet should be tailored according to each individual's health condition and age. Alternatively, consult a nutrition specialist to ensure comprehensive health.