Ester-C

Solgar Ester C Vitamin C is available in two pharmaceutical forms:

• Ester C Plus 1000 mg, in the form of tablets, intended for adults, with a high concentration of vitamin C, recommended especially during periods of intense effort or exposure to oxidative stress.
• Ester C Plus 500 mg, in vegetable capsules, which are easier to swallow

Ester C Plus vitamin C is recommended as a dietary supplement in many situations, offering the following therapeutic benefits:

• Supports immune function by accumulating vitamin C in white blood cells;
• Contributes to normal collagen formation, which plays a structural role in the skin, bones, cartilage, gums and blood vessels;
• Improves the absorption of non-haem iron from plant sources;
• Participates in the regeneration of the reduced form of vitamin E and has a powerful antioxidant effect;
• Supports energy metabolism and reduces fatigue;
• Useful in preventing or combating cold and flu symptoms, as well as during convalescence.

According to the manufacturer's recommendations, the usual dose for adults is 1 tablet (Ester-C® Plus 1000 mg) per day or 1-3 capsules (Ester-C Plus 500 mg) per day, preferably taken with meals to promote absorption.

It is important not to exceed the recommended dose, and the supplement should only be used as an adjunct to a healthy lifestyle and a balanced diet.

Ester-C is contraindicated in the following situations:

• Known hypersensitivity to vitamin C or any of the product's excipients;
• Patients with kidney stones or a predisposition to forming oxalate stones;
• People with haemochromatosis (a disease characterised by excessive iron absorption), as vitamin C increases iron absorption.

Ester C can also be taken by vegetarians and vegans, thanks to its formula free from ingredients of animal origin.

Ester C is certified Non-GMO and does not contain sugar, salt, starch, gluten, lactose, preservatives, artificial colours or flavours.

The product does not affect blood sugar levels and is therefore suitable for people with diabetes.

Ester C is generally well tolerated, but in rare cases the following may occur:

• Gastrointestinal disorders (nausea, diarrhoea, abdominal pain);
• Allergic reactions (skin rash, itching, facial swelling);
• Kidney stones if taken in high doses over a long period of time;

It is important that patients follow the recommended daily dose and consult their doctor if any unusual symptoms occur.

Vitamin C may interact with certain medicines or affect the absorption of certain nutrients:

• It increases iron absorption, so it should be used with caution during iron treatment;
• It may reduce the effectiveness of certain anticoagulant drugs (e.g. warfarin);
• It decreases the plasma concentration of certain antipsychotic drugs (e.g. fluphenazine);
• It interacts with oestrogens, levothyroxine and aspirin.

Although vitamin C is a water-soluble vitamin and excess amounts are eliminated in the urine, very high doses (over 2000 mg/day) can lead to:

• Acidification of the urine;
• Gastrointestinal disorders;
• Kidney stones;
• Electrolyte imbalances.

In case of accidental overdose, emergency medical consultation is recommended, although the toxicological risk is low due to the safety profile of vitamin C.

To maintain its properties, Ester-C should be stored at room temperature (15-30°C), in a dry place, away from moisture and direct light, in its original packaging, tightly closed. Keep out of the sight and reach of small children. Compliance with these conditions ensures the stability of the product until the expiry date stated on the packaging.

• NIH, Vitamin C
• WebMD, Vitamin C
• Healthline, 7 impressive ways vitamin C benefits your body
• PubMed, Vitamin C and immune function