How Much Vitamin C Should You Take for Optimal Nutrition
Vitamin C is one of the most important nutrients your body needs every day. Being one of the responsible vitamins for the proper function of the immune system and healthy skin, wound healing, and increasing iron absorption, vitamin C has multiple important roles in the body. Many people, however, wonder how much vitamin C should be taken per day and if taking more than needed has extra benefits.
Discover how much vitamin C you should take each day, its benefits, and how much is too much.
What Is Vitamin C?
Vitamin C is a water-soluble vitamin essential for various bodily functions. Your body is unable to produce or store vitamin C, which is why you need to obtain the required amount through your daily diet or by taking supplements. This doesn't mean, however, that vitamin C can be taken in unlimited amounts, as it can cause unwanted side effects.
Vitamin C helps:
- Vitamin C contributes to protecting cells from oxidative stress.
- To preserve healthy skin, blood vessels, bones, and cartilage.
- With proper wound healing.
A lack of vitamin C in the organism for a long time may cause scurvy, which is caused by a vitamin C deficiency.
Functions of Vitamin C in the Body
Vitamin C is important for your body's growth, development, and repair. Some of its functions include:
- Formation of collagen that helps in the formation of skin, blood vessels, bones, and cartilage.
- Better iron absorption from plant-based products.
- Optimal immune system function.
- Better wound healing.
- Formation of strong bones, teeth, and cartilage.
Being an antioxidant, vitamin C protects your body from damage caused by free radicals, chemical toxins, pollution, and cigarette smoking. Oxidative stress caused by free radicals has been associated with ageing and certain chronic diseases, although many factors contribute to disease development.
What Is the Recommended Daily Vitamin C Dose?
The vitamin C daily requirements depend on the amount required from food and supplementation and are calculated by the Institute of Medicine (IOM) through the Recommended Dietary Allowance (RDA).
Recommended Daily Allowance for Vitamin C
| Life Stage | Recommended Dietary Allowance (RDA) |
| Children (1–3 years) | 15 mg |
| Children (4–8 years) | 25 mg |
| Children (9–13 years) | 45 mg |
| Teens (14–18 years) | 65–75 mg |
| Adult women (19 years and older) | 75 mg |
| Adult men (19 years and older) | 90 mg |
| Pregnant women (19 years and older) | 85 mg |
| Breastfeeding women (19 years and older) | 120 mg |
Note: These values represent the Recommended Dietary Allowance (RDA) for healthy individuals. Individual vitamin needs may vary based on health conditions, diet, and medical advice.
Those wondering about the vitamin C dosage per day should use the above chart as a reliable source of information for healthy people.
As for the women's vitamin C daily intake question, the general recommendation is 75 mg per day, while pregnant and breastfeeding women need more to provide the necessary amount of the vitamin for themselves and their infants.
Daily Value (DV) for Vitamin C
In addition to the RDA, the FDA also established the Daily Value for vitamin C. It is used to mark the nutrition labels with the %DV information and help consumers know the contribution of a certain food product to their daily nutrient intake.
Currently, the Daily Value for vitamin C is 90 mg per day for adults and children aged 4 years and older.
Is There Such a Thing as Too Much Vitamin C?
Despite all the health benefits of this essential vitamin, consuming too much vitamin C is not recommended, especially in supplement form.
The maximum safe vit C daily requirement for adults is 2,000 mg. The upper limit for children is different based on age.
Excessive vitamin C consumed via natural sources like fruits and veggies is unlikely to be harmful. However, the high doses of supplements containing vitamin C may cause the following symptoms:
- Diarrhea
- Nausea
- Vomiting
- Indigestion
- Esophagitis
- Abdominal pain
- Headaches
In some cases, vitamin C may also contribute to the formation of kidney stones. The best way to get all the health benefits of vitamin C is to follow the recommended vitamin C dosage per day.
Health Benefits of Vitamin C
There are a variety of ways in which vitamin C can benefit one's health. Though it does not have curative properties, its adequate intake along with a healthy diet and lifestyle may improve health outcomes.
1. May Help Body Deal with Stress
People with low vitamin C levels usually suffer from higher stress levels. Those who smoke, drink alcohol, or are obese usually have lower levels of vitamin C in their bodies. Sufficient vitamin C intake may help maintain good health under stressful conditions.
2. Helps Recover from Common Colds
Though vitamin C cannot cure common colds, scientific research has proven that the vitamin may reduce the risks of possible complications from the cold or influenza or other respiratory infections.
3. May Help Reduce the Risk of Strokes
Some observational studies have found associations between higher vitamin C status and lower stroke risk, but this does not prove a direct protective effect of vitamin C. People who eat plenty of fruits and vegetables usually have higher blood levels of vitamin C, along with fibre and other nutrients.
4. Promotes Healthy Skin Ageing
Vitamin C supports collagen synthesis and acts as an antioxidant that protects skin cells from oxidative damage. Higher intake of this vitamin is associated with:
- Reduced appearance of wrinkles
- Less skin dryness
- Overall skin appearance improvement
Some topical products with vitamin C have shown some results in reducing the signs of skin ageing.
Things to Keep in Mind
It is crucial to understand the required amount of vitamin C needed by your body in order to have good health. It is necessary to mention that the required dose of vitamin C depends on your age, gender, pregnancy, and nursing condition. However, the average daily requirement is between 75 mg and 90 mg of vitamin C for the majority of healthy adults.
Even though there are many benefits associated with vitamin C use, such as an immune system supporter, collagen formation, and antioxidant effects, exceeding the daily vitamin C dosage will not bring extra advantages and may lead to digestive problems.
Reader Information: The information shared is only for general educational purposes. Vitamin C contributes to normal immune function, collagen formation, wound healing, iron absorption, and protection of cells from oxidative stress. However, no vitamin or dietary supplement can prevent, treat, or cure diseases on its own. Vitamin C should be obtained as part of a balanced diet and healthy lifestyle. Individual nutritional needs may vary, and supplementation should be considered in consultation with a qualified healthcare professional where appropriate.
