Welcome to visit Jin Hu!
Current location:front page >> healthy

Who can't eat vitamin C

2025-10-02 04:06:25 healthy

Who can’t eat vitamin C? Analysis of the taboo population of vitamin C

Vitamin C (vitamin C) is an essential nutrient for the body, but not everyone is suitable for supplementation. The following is a popular discussion summary on the contraindications of vitamin C on the entire network in the past 10 days. Combined with medical advice, we will sort out who should be cautious or avoid taking vitamin C.

1. The effect of vitamin C and routine intake

Who can't eat vitamin C

Vitamin C has the functions of antioxidant, enhancing immunity, and promoting collagen synthesis. According to the "Reference Intake of Dietary Nutrients for Chinese Residents", the recommended daily amount for adults is 100mg, and the maximum tolerated amount is 2000mg.

crowdDaily recommended amount (mg)Maximum safe dosage (mg)
Healthy Adults1002000
Pregnant woman110-1302000
Lactation women1502000

2. Absolutely not eat vitamin C group 5 people

1.Patients with kidney stones: Vitiligo C metabolizes oxalic acid, which may aggravate the formation of stones.

2.Patients with hemochromatosis (iron overload): Vitamin C promotes iron absorption, which may lead to worsening of iron deposition.

3.Patients with glucose-6-phosphate dehydrogenase deficiency: Large doses of vitamin C may induce hemolysis.

4.Cancer patients undergoing chemotherapy: May interfere with the effect of some chemotherapy drugs.

5.People who are allergic to vitamin C: Rare but must be avoided absolutely.

Taboo peopleRisk mechanismsuggestion
Patients with kidney stonesIncrease oxalic acid excretion≤100mg per day
Patients with hemochromatosisPromote iron absorptionAvoid supplements

3. Be careful to supplement the 4 situations of Dimension C

1.Diabetic patients: May interfere with blood sugar monitoring results.

2.Patients with digestive tract disease: High doses may cause diarrhea and stomach pain.

3.Those taking specific medications: Such as anticoagulants, aluminum preparations, etc.

4.Preparing for surgery: Large dose of vitamin C is required to be discontinued 1 week before the operation.

Drug TypeinteractionRecommended interval
Anticoagulant (warfarin)Reduce the efficacy of medicineMore than 2 hours
Aluminum preparations (antioacids)Increase aluminum absorptionMore than 4 hours

4. Seven major hazard signals of excessive vitamin C

Even in non-contraindicated people, excessive supplementation (>2000mg/day) may still cause: diarrhea, headache, insomnia, frequent urination, skin flushing, oxalicuria, and iron overload.

5. Correctly supplement 3 suggestions for Dimension C

1. Priority is obtained from natural foods (such as citrus and kiwis).

2. Choose the sustained-release type of supplement, with a single dose of no more than 500 mg.

3. Long-term users regularly monitor urinary oxalic acid and renal function.

Summary: Although Vision C is good, specific groups need to be strictly avoided. It is recommended to supplement under the guidance of a doctor, especially those with chronic diseases and those who take medication for a long time. The latest research shows that excessive dimensional C may reduce exercise endurance and subvert traditional cognition. This topic has recently sparked heated discussions in medical forums.

Next article
  • What medicine should I take for dry tongue and dry mouth?Recently, "What medicine should you take for dry tongue?" has become a hot health topic. Many netizens are looking for ways to relieve dry mouth due to seasonal changes or living habits. This article will combine the hot content of the entire network in the past 10 days to provide you with structured data and suggestions.1. Common causes of dry tongue and mouth
    2026-01-31 healthy
  • What tests should be done for diarrhea in children?Diarrhea in children is one of the common diseases in children. The causes are complex and may be caused by infection, allergies, indigestion and other factors. For accurate diagnosis and treatment, doctors usually recommend a series of tests. The following are the examination items and precautions related to pediatric diarrhea that have been hotly discussed on the I
    2026-01-28 healthy
  • What medicine to use for acid burnsAcid burns are a common type of chemical burns, usually caused by strong acids (such as sulfuric acid, hydrochloric acid, nitric acid, etc.) coming into contact with the skin or mucous membranes. The key to properly managing an acid burn is to quickly flush the wound and choose the appropriate medication to treat it. The following is a detailed guide on medication for acid burns, co
    2026-01-26 healthy
  • What are the symptoms of early kidney tumors?Renal tumors are one of the common malignant tumors of the urinary system, and early detection and treatment are crucial to prognosis. However, early-stage kidney tumors often have subtle symptoms and are easily overlooked. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the symptoms, d
    2026-01-23 healthy
Recommended articles
Reading rankings
Friendly links
Dividing line