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
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.
| crowd | Daily recommended amount (mg) | Maximum safe dosage (mg) |
|---|---|---|
| Healthy Adults | 100 | 2000 |
| Pregnant woman | 110-130 | 2000 |
| Lactation women | 150 | 2000 |
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 people | Risk mechanism | suggestion |
|---|---|---|
| Patients with kidney stones | Increase oxalic acid excretion | ≤100mg per day |
| Patients with hemochromatosis | Promote iron absorption | Avoid 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 Type | interaction | Recommended interval |
|---|---|---|
| Anticoagulant (warfarin) | Reduce the efficacy of medicine | More than 2 hours |
| Aluminum preparations (antioacids) | Increase aluminum absorption | More 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.
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