Before we dive in, a quick reminder. Vitamin C is an essential nutrient, helping to support the immune system and overall health . Adults are recommended to get around 90mg of vitamin C each day, and not to exceed 2,000mg. As it is not stored in the body, it’s unlikely that exceeding this dose will cause too much harm. However, taking extreme doses may cause issues such as an upset stomach, nausea, diarrhea and vomiting. Megadoses of vitamin C may also contribute to headaches . Looking for ideal Vitamin C Effervescent Tablet Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Vitamin C Tablets Benefits are quality guaranteed. We are China Origin Factory of Vitamin C Use. If you have any question, please feel free to contact us.