What should not take vitamin C with? Things you should keep in mind

28.07.23 221

Vitamin C is probably one of the most popular vitamins for promoting and improving health. Vitamin C can be found in nearly all daily fruits and vegetables. In addition, many vitamin C functional foods are available on the market at affordable prices.

However, a lot of people are using Vitamin C in moderation and are vague about the potential dangers. How harmful is Vitamin C really? What should not be taken with vitamin C? Does vitamin c increase height? Let’s find out with Solife through the following article.

1. What should not be taken with vitamin C ?

Vitamin C is a chemical compound. Cross-reactivity with other nutrients or minerals in the feed is evident. However, the frequency and potential for toxicity to the body of Vitamin C is not high. However, this should not be taken lightly.

Some foods to keep in mind when using Vitamin C at the same time are as follows:

  • Animal liver: some common foods in Vietnam containing beef liver, pork liver, chicken liver, .. are recommended to limit use while supplementing with vitamin C. The reason is due to the element Copper (Cu). commonly found in animal liver inhibits the biological activity of Vitamin C.
  • Milk: Milk is a rich source of B vitamins. Under normal conditions, B vitamins participate in many biochemical cycles of the body. However, if both vitamin B and vitamin C are used together, the activity of vitamin C will be oxidized by vitamin B.

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  • Seafood: you are probably used to using seafood and snails, crabs and crabs with lemon sauce or eating rare with lemon juice. However, this is a dangerous action because seafood contains many non-toxic pro-arsenic compounds. But vitamin C can convert pre-arsenic into toxic arsenic that harms your body.

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2. Interactions between drugs and vitamin C should be noted

2.1 Antibiotics

The beta lactam antibiotic strains are often very easily degraded in an acidic environment. The nature of vitamin C is acid, so when using these two drugs together, it should be noted that vitamin C can destroy the structure and function of beta lactam antibiotics including penicillin, ampicillin, amoxicillin.

2.2 Non-steroidal anti-inflammatory drugs (NSAIDs)

The nature of vitamin C and anti-inflammatory drugs are both acidic. When these two drugs are used at the same time, they will inadvertently increase the acidity in the body, leading to competition for elimination. Vitamin C, above all, is better soluble in water, so it competes against NSAIDs and leads to the accumulation of compounds from the drug in the blood under high concentrations.

2.3 Aluminum-containing antacids

Vitamin C has an interesting mechanism by increasing the body’s ability to absorb Aluminum (Al). This element is very common in most antacids. Therefore, the combination of these two drugs may increase the side effects of antacids.

2.4 Sedatives/Tranquilizers

Many clinical studies have demonstrated that tranquilizers have the ability to reverse the activity of vitamin C. It should be noted for patients who are in need of both drugs to be pharmacologically effective. the reason does not change.

2.5 Chemotherapy drugs

Cancer patients undergoing chemotherapy need to use a combination of many drugs. However, because vitamin C, with its powerful antioxidant effect, has the ability to reduce the activity of chemotherapy drugs. It is important to consult carefully with your doctor and specialist before you need to use vitamin C during chemotherapy.

2.6 Oral contraceptives and hormone replacement therapy (HRT)

One of the main effects of oral contraceptives is to regulate the levels of female hormones in the body, specifically estrogen. However, under the effect of vitamin C, the body’s rate of estrogen elimination can become very slow. This may reduce the effectiveness of birth control pills.

2.7 HIV medication

Indinavir is a fairly common compound that is widely used in common HIV medications. Vitamin C when used in combination, can reduce the level of indinavir in the drug, thereby reducing the effectiveness of the drug.

2.8 Anticoagulants

The two most important compounds with anticoagulant effects for these drugs are heparin and warfarin. The anticoagulant activity of the two compounds above may be reduced if the drug is used in combination with vitamin C. According to expert recommendations, should be taken at least 2 hours apart to avoid cross-effects of both drugs.

2.9 Other drugs

A few other specific medications can have a negative cross-over effect on vitamin C effectiveness and vice versa:

  • Cholesterol-preventing drugs

  • Medicines against kidney stones

  • Sulfonamide group antibiotics

3. What should be noted in order for vitamin C to promote its best use?

  • Understand the right dosage: an adult can take up to 1,800 – 2,000 mg of vitamin C/day. Please consult your doctor and nutritionist when you have a need to use vitamin c supplements to ensure that you do not overdose.

  • Optimal time: Although it can be absorbed at any time of the day, when using high doses of vitamins, you should be careful to avoid taking them in the evening. Because taking vitamin C too late in the day can cause bowel irritation, nocturia and trouble sleeping.

  • Consult a doctor or dietitian when giving high doses of vitamin c to children and pregnant or lactating women.

  • When symptoms of overdose appear, it is necessary to visit a doctor immediately for advice on a timely treatment and emergency plan.

See also: Breastfeeding take vitamin c effervescent tablets?

4. Buy the most genuine and prestigious vitamin C at Solife

Currently, there are many brands of vitamin C supplements that are selling widely in the market. Users need to have smart consumption habits to be able to choose for themselves reputable and licensed brands. At Solife, health foods supplemented with vitamin C are always focused. Understanding your consumer needs, Solife only provides quality products and meets industry standards. You can refer to it here.

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Through the article about the notes when using vitamin C in combination with other foods and drugs, Solife hopes you have gained more knowledge and answered the question at the beginning of the article that what should not be taken with vitamin C? Does vitamin c increase height? In addition, you can refer to Solife’s genuine and reputable product lines about Vitamin C, goodbye to worries about product quality.





Trần Hoàng Uyên (Senior Manager Pharmaceutical company) là chuyên gia cấp cao với nhiều năm kinh nghiệm trong lĩnh vực dược phẩm. Tốt nghiệp cử nhân chuyên ngành Quản lý dược I tại Trường Đại học Y dược TP. Hồ Chí Minh và hiện đang công tác tại công ty dược phẩm. Với hơn 10 năm kinh nghiệm làm việc trong ngành dược, chị Hoàng Uyên là chuyên gia cộng tác tham vấn y khoa cho danh mục blog cũng như các nội dung liên quan trên Solife. (Tran Hoang Uyen (Senior Manager Pharmaceutical company) is a senior specialist with many years of experience in the Pharmaceutical field. She graduated Bachelor of Pharmacy Management I at the University of Medicine and Pharmacy at Ho Chi Minh City and is currently working for a pharmaceutical company. With more than 10 years of experience working in the pharmaceutical industry, Ms. Hoang Uyen is a medical consultant collaborator for content on Solife's website.)