Vitamin C – essential facts and guide to the right supplement

What is Vitamin C?

Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays an important role in several of the body's processes. Since the body cannot store vitamin C, we need to supply it regularly through diet or supplements. Vitamin C occurs naturally in many fruits and vegetables, especially citrus fruits, berries, and peppers. As a supplement, vitamin C is popular among people who want to ensure a daily intake or complement their diet when needed.

Thanks to its water-soluble nature, excess vitamin C is eliminated via urine, making it relatively safe to use in recommended doses.

Benefits & uses

Vitamin C supplements can be suitable in various situations and for several purposes. Below are some common uses and benefits of vitamin C:

• Daily supplement: To ensure a consistent intake of vitamin C when the diet may be insufficient.
• Increased physical activity: People who exercise a lot may have increased antioxidant needs.
• As part of a varied diet: Supplements are often used to complement fruit and vegetable intake when limited.
• Convenient dosing: Easy to take in the form of tablets, capsules, powder, or effervescent tablets.

How to choose the right Vitamin C

When buying vitamin C, it is good to consider some factors to find the product that suits you best. Here are some tips to keep in mind:

• Form of vitamin C: Ascorbic acid is the most common, but there are also variants with added bioflavonoids that may affect absorption.
• Dosage: Choose a dose that matches your needs. The recommended daily intake for adults is about 75–90 mg, but doses in supplements can vary up to several hundred milligrams per serving.
• Type of product: Tablets, capsules, powder, or effervescent tablets – choose what is most convenient for you.
• Quality and origin: Check that the product is made by a reliable supplier and meets Swedish and European quality standards.
• Possible allergies and additives: Read the ingredient list carefully if you have allergies or want to avoid certain additives.

For more supplements, you can also visit our category Vitamins.

Popular variants

Vitamin C comes in several different forms, making it easy to find a variant that suits your needs and preferences. Here are some of the most common types:

• Ascorbic acid: The most used and well-studied form of vitamin C. Often found in tablets and capsules.
• Buffered vitamin C: A variant where ascorbic acid is neutralised with minerals such as calcium or magnesium, which can be gentler on the stomach.
• Effervescent tablets and powder: Suitable for those who want an easy-to-dose and fast-absorbing form, often flavoured.
• Vegan and natural options: Vitamin C extracted from natural sources, such as acerola or camu camu, for those who prefer natural supplements.

Frequently asked questions about Vitamin C

Can I take too much vitamin C?

Vitamin C is water-soluble, which means excess is usually excreted via urine. However, there are recommended upper limits for daily intake. Taking very high doses can sometimes cause stomach discomfort. Therefore, it is important to follow the dosing instructions on the product.

Which form of vitamin C is best?

It depends on personal preferences and any sensitivities. Ascorbic acid is the most common form and has good documentation.

Can I take vitamin C together with other supplements?

Vitamin C can generally be combined with other vitamins and minerals. It is common for vitamin C to be included in multivitamins. If you are taking medications or have specific health conditions, please consult a doctor or pharmacist.