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Can I take a multivitamin and vitamin C?

Author

Emma Payne

Published Jan 06, 2026

For most individuals, it is perfectly safe to take a multivitamin containing vitamin C along with a stand-alone vitamin C supplement. Most multivitamin products contain between 45mg and 200mg vitamin C per serving, while most stand-alone supplements contain between 500mg to 1000mg.

Can I take multivitamins and vitamin C at the same time?

If you take a multivitamin, you don't usually need to take separate vitamin C or vitamin E supplements, however. In fact, taking both a supplement and multivitamin could lead to toxicity, according to Jeffrey Blumberg, a professor of nutrition at Tufts University in Boston.

What vitamins should not be taken together?

Here are six vitamin combinations you definitely shouldn't take together.

  • Magnesium and calcium/multivitamin. ...
  • Vitamins D, E and K. ...
  • Fish Oil & Gingko Biloba. ...
  • Copper and zinc. ...
  • Iron and Green tea. ...
  • Vitamin C and B12.

Can you take multivitamins with other vitamins?

Avoid taking more than one multivitamin product at the same time unless your doctor tells you to. Taking similar vitamin products together can result in a vitamin overdose or serious side effects. Many multivitamin products also contain minerals such as calcium, iron, magnesium, potassium, and zinc.

Is there enough vitamin C in a multivitamin?

Jane Higdon, a Linus Pauling Institute research associate, states that most multivitamins contain approximately 60 mg of vitamin C, while five servings of fruits and vegetables average around 200 mg.

17 related questions found

Is it good to take a multivitamin everyday?

But there is still limited evidence that a daily cocktail of essential vitamins and minerals actually delivers what you expect. Most studies find no benefit from multivitamins in protecting the brain or heart. But There are potential benefits and no risks from a one daily standard multivitamin.

Is a multivitamin worth taking?

The Bottom Line

Although multivitamins may be beneficial for some people, they're unnecessary for most. In some cases, they may even provide excessive amounts of certain nutrients. If you want to boost your nutrient intake through diet alone, consider adding some of these nutritious, whole foods to your routine.

What happens if you take an extra multivitamin?

The most common side effects would be gastrointestinal upset, including diarrhea, nausea, and vomiting, according to Dr. Woods.

What is the best time to take vitamin C?

While Vitamin C is a largely helpful nutrient, it is a water-soluble nutrient, which is best absorbed when you take them empty stomach. An ideal way would be to take your supplement first thing in the morning, 30-45 minutes before your meal.

Can I take vitamin C at night?

You can take vitamin C supplements at any time of day, with or without food, although taking ascorbic acid with foods can help decrease the potential gastrointestinal side effects caused by its high acidity ( 7 ).

What vitamins should not be taken with vitamin C?

Vitamin combinations to avoid

  • Vitamin C with vitamin B-12. Vitamin C is an essential antioxidant for immune system health. ...
  • Vitamin A supplement with vitamin A-rich foods. Since vitamin A is a fat-soluble vitamin, any excess is stored in the body. ...
  • Folic acid (vitamin B9) and vitamin B12. ...
  • Vitamin E and vitamin K.

Can I take 5 different vitamins at once?

You can—but it's probably not a good idea. For some supplements, optimal absorption can depend on the time of day taken. Not only that—taking certain vitamins, minerals, or other supplements together can also reduce absorption and may result in adverse interactions, which can be harmful to your health.

How much vitamin C should I take daily?

The recommended daily amount for vitamin C is 75 milligrams (mg) a day for women and 90 mg a day for men. During pregnancy, 120 mg a day are recommended. The upper limit for all adults is 2,000 mg a day.

Is it okay to take 2 different vitamins a day?

Taking two multivitamins a day can put your health in danger and cause severe toxicity. When consumed in large doses, certain nutrients may affect the kidneys, increase the risk of bleeding and promote the formation of calcium stones, among other side effects.

Can I take vitamin C while taking pills?

Answer: Taking vitamin C will not interfere with the efficacy of your birth control pill. You should not be concerned about pregnancy unless you missed your pills or started your pack late.

Can I take multivitamins at night?

“Digestion slows down during sleep, so taking your nutrient supplement late at night would not be associated with an efficient absorption.” Neil Levin, a clinical nutritionist at NOW Foods, agrees that morning is best for multivitamins and any B vitamins.

When should I take multivitamins?

Best Time to Take Multivitamins

You should take your multivitamins in the morning with a meal so you can ease absorption. However, if that causes stomach pain, try taking it before you go to bed. Remember, the most important thing is to make them a part of your daily routine.

Can vitamins cause anxiety?

As much as you need vitamin A in your body, you need to aware that some food products that have vitamin A are likely to give you anxiety. It is so uncomfortable and irritating. Note better; you should not start avoiding taking in vitamin A products.

What is side effects of vitamin C?

Taking too much vitamin C can cause side effects, including:

  • Nausea, vomiting and diarrhea.
  • Heartburn.
  • Stomach cramps or bloating.
  • Fatigue and sleepiness, or sometimes insomnia.
  • Headache.
  • Skin flushing.

Can too much vitamin C hurt you?

But routinely getting an overload of vitamins and minerals can hurt you. Too much vitamin C or zinc could cause nausea, diarrhea, and stomach cramps. Too much selenium could lead to hair loss, gastrointestinal upset, fatigue, and mild nerve damage.

Should I stop taking vitamins if my pee is bright yellow?

So even if you're experiencing bright yellow urine and you're maybe wondering, "Should I stop taking vitamin B if my urine is yellow?", the best course of action is to not skip your B-complex vitamins unless it's recommended by your doctor, as they're extremely important to internal functions that maintain overall ...

Do multivitamins have side effects?

Many multivitamin products also contain minerals such as calcium, iron, magnesium, potassium, and zinc. Minerals (especially taken in large doses) can cause side effects such as tooth staining, increased urination, stomach bleeding, uneven heart rate, confusion, and muscle weakness or limp feeling.

Is it better to take a multivitamin or individual vitamins?

Tailored Vitamins Better than Multivitamins There's no real rationale behind multivitamins, say nutrition experts. A better strategy is to take just the vitamins a person needs based on age and diet.

How long does it take for multivitamins to start working?

Generally speaking, the more severely deficient you are in a vitamin or nutrient, the faster you'll see a difference when taking supplements. However, in most cases, it takes around three to six weeks to see noticeable changes.

Do multivitamins make you gain weight?

Do vitamins really cause weight gain? In a word, no. Vitamins cannot directly increase your weight, as they hardly have any calories. On the other hand, a lack of vitamins—vitamin deficiencies—may lead to adverse weight effects.