The safety and side effects of high-dose Vitamin C supplementation

Ascorbic acid, or vitamin C, is a substance that the human body and many others need to function normally. It is a water-soluble vitamin that acts as an antioxidant and plays a role in many bodily functions, including forming collagen, synthesizing neurotransmitters, and maintaining healthy skin and bones. Vitamin C is also essential for the immune system, as it helps the body fight off infections and diseases.

Sources of vitamin C

Citrus fruits are a good source of vitamin C (such as oranges and grapefruits), berries, tomatoes, leafy greens, bell peppers, and potatoes. It is also available in supplement form, and many people take vitamin C supplements to support their overall health and immune system.

Benefits of Vitamin C

Vitamin C has many significant benefits for the body, including:

Supports immune function: Vitamin C is essential for the proper functioning of the immune system. According to research, the severity and length of colds and other diseases may be mitigated by its use.

Acts as an antioxidant: Vitamin C is an effective antioxidant that shields the body from free radicals, which can cause cell damage and even contribute to developing chronic diseases.

Supports skin health: Vitamin C is essential for producing collagen, a protein that provides structure to the skin and helps keep it firm and youthful.

Maintains healthy gums: Vitamin C is vital for the health of gums and can help prevent gum disease.

Supports brain health: Vitamin C plays a role in the production of neurotransmitters, which are chemicals that transmit signals in the brain and may help improve cognitive function and mood.

Recommended dosage

Collagen formation relies on vitamin C, making it a crucial ingredient for maintaining healthy skin, bones, and other connective tissues. It also has antioxidant properties, warding off the damage done by free radicals to our cells. Vitamin C also supports the immune system by aiding in producing white blood cells, which help fight infections.

The RDAs are based on the amounts of vitamin C needed to maintain good health in 97.5% of the population. The following are the RDAs for different age groups:

  • Infants (0-6 months): 40 milligrams per day
  • Infants (7-12 months): 50 milligrams per day
  • Children (1-3 years): 15 milligrams per day
  • Children (4-8 years): 25 milligrams per day
  • Children (9-13 years): 45 milligrams per day
  • Adolescent and adult males: 90 milligrams per day
  • Juvenile and adult females: 75 milligrams per day
  • Pregnant women: 85 milligrams per day
  • Breastfeeding women: 120 milligrams per day

Note that these are the minimum vitamin C consumption to avoid a deficit. Higher doses may be recommended for specific individuals, such as smokers or those under increased physical or emotional stress.

Vitamin C is a water-soluble vitamin, which means that any excess is excreted by the body and not stored, making it relatively safe to consume in large doses. However, taking very high doses of vitamin C can lead to side effects such as upset stomach, diarrhea, and kidney stones. The upper limit for vitamin C intake is 2,000 milligrams per day for adults. 

Safe supplementation

When consumed in the prescribed amounts, vitamin C is not considered dangerous. Most people do not experience any significant side effects from taking vitamin C supplements, and the body excretes any excess that it does not need.

However, taking high doses of vitamin C can cause side effects, such as upset stomach, diarrhea, and kidney stones, and it can also interact with certain medications. If you are on any drugs, consulting your doctor before starting a vitamin C supplement is crucial for determining the correct dosage and ensuring the supplement is safe for your needs and health.

Excess Intake

Vitamin C is generally considered safe when recommended, and most people do not experience significant side effects. However, taking high doses of vitamin C can cause some side effects, including:

Upset stomach: Consuming large doses of vitamin C can cause digestive symptoms such as abdominal pain, bloating, and diarrhea.

Kidney stones: A high vitamin C intake in some persons might cause kidney stones by raising the urine oxalate level.

Interactions with medications: Vitamin C can interact with certain medications, such as aspirin and blood-thinning medications, It is crucial to consult a doctor before taking a vitamin C supplement if you are already taking any medication.

False positive results on specific medical tests: Vitamin C can interfere with some laboratory tests, leading to false positive results. It is essential to inform your healthcare provider if you have taken a vitamin C supplement before any medical tests.

It is important to note that these side effects are generally associated with taking high vitamin C supplements. They can usually be avoided by not exceeding the recommended daily dose. Suppose you are considering taking a vitamin C supplement. In that case, it is best to talk to a healthcare professional to determine the right amount for you and ensure that it is safe and appropriate for your needs and health status.

Ephuroalabs vitamin C gummies

Vitamin C gummies from EphuroaLabs are a nutritional supplement that makes it easy to get your daily dose of vitamin C. They taste great and are easy to take because they come in gummy form. They contain many beneficial minerals, including vitamin C. Vitamin C aids in wound healing by acting as an antioxidant and stimulating collagen production.


In conclusion, vitamin C is an essential ingredient because it aids in many different ways in the body. You can support your overall health and well-being by incorporating vitamin C into a healthy lifestyle.