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# Can I Overdose on Vitamin C or Vitamin D?

Vitamin C and D are essential vitamins that help support your health, but is it possible to have too much of a good thing? Short answer: Yes. You can take too much of both vitamins. However excessive, prolonged intake of vitamins C and D is not common. That said, like any other supplement, vitamins C and D intake should not exceed the tolerable upper intake level (UL)  and you should follow the suggested use for taking them safely. Overall, make sure you check with your healthcare practitioner if you have any questions about taking any supplement. 

## What is Vitamin C?
Vitamin C is a water-soluble vitamin and powerful antioxidant. Most commonly you might think of vitamin C when you think of citrus fruits like oranges but you can find vitamin C in a large number of foods you consume daily. Think peppers, strawberries, tomatoes, and even broccoli. Vitamin C helps play a critical role in immune health. making sure you're getting enough vitamin C — either from your diet or by supplementing — can help support healthy immune function.

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### What are the health benefits of Vitamin C?
Vitamin C is most commonly known for its ability to support the immune system and its immune health benefits have long been studied by researchers and scientists. While evidence is mixed, most of this research on vitamin C points to positive benefits on the immune system. One [meta-analysis](https://pubmed.ncbi.nlm.nih.gov/10488881/ "meta-analysis") reviewed 60+ studies on the effect of vitamin C on the common cold and concluded that while vitamin C does not help prevent colds in normal adults, it may help support healthy immune function. 

Vitamin C (ascorbic acid) is considered a potent antioxidant involved in sequestering free radicals to minimize the damage they cause to our bodies due to oxidative stress. Vitamin C is also well known as a “helper vitamin” for Iron. Research has shown that taking vitamin C can help our bodies better absorb iron from food or supplements. 

Fun fact: In the 1700s, scurvy was a common problem for sailors on long trips out at sea and in 1747, a Scottish Naval surgeon, James Lind, discovered citrus fruits, high in vitamin C, can help prevent scurvy.

![overdose-vitaminc-vitamind-1](//images.ctfassets.net/t9x0u6p47op0/5BjKcm3Xz6RcPYlkBFk7uV/f11f4a2d57260f356ccff31a20c480d6/overdose-vitaminc-vitamind-1.jpg)

## What is Vitamin D?
Unlike vitamin C, vitamin D is a fat-soluble vitamin. This means that your body absorbs vitamin D the same way you would absorb fats in your diet. While you can get vitamin D from foods in your diet like sardines, egg yolks, and cheese) most people get their daily dose from sunlight. Exposure to the sun, specifically UV rays, helps your body naturally synthesize vitamin D from cholesterol stores in your skin. A number of factors impact the ability for people to get necessary levels of Vitamin D through sun exposure. Regional factors that prevent people from getting sun exposure include wearing sunblock, cloud cover patterns, smog, and the angle at which the sun hits the earth where you live. In this case supplementation may be a good option for you.

Vitamin D is available in two forms: D2 (ergocalciferol) and D3 (cholecalciferol). 

### What are the health benefits of Vitamin D?

Vitamin D influences many systems and processes within our bodies, particularly bone health and immune health. A few [well known benefits](https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/ "well known benefits") of vitamin D include:

- Helps promote calcium absorption
- Supports bone growth and strength
- Regulates the growth and function of immune cells

Researchers have also [concluded](https://pubmed.ncbi.nlm.nih.gov/27655755/ "concluded") that increased vitamin D supplementation during pregnancy may reduce negative consequences associated with inflammation. And a [panel of experts ](https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2010.1468 "panel of experts")concluded “that a cause and effect relationship has been established between the dietary
intake of vitamin D and contribution to the normal function of the immune system and healthy
inflammatory response, and maintenance of normal muscle function.”

## Can I overdose on vitamin C or vitamin D?
Yes, while rare, it is possible to overdose on vitamin C and vitamin D. Significantly large doses of either vitamin are required to trigger an overdose. The risk of an overdose, however minor, should still be taken seriously and we recommend consulting with your physician to determine the vitamin C and D doses that are best for you. 

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## How much vitamin C should I take daily?

The recommended daily amount of vitamin C is 65 mg to 90 mg daily, but as always, check with your doctor to determine the right amount for your needs. It is essential to find [a high quality vitamin C supplement](https://takecareof.com/products/vitamin-c "a high quality vitamin C supplement") if you plan on taking a daily vitamin to get the most benefits from your vitamin C. Look for a [supplement](https://takecareof.com/products/vitamin-c "supplement") that resembles Vitamin C in its food-based form and is designed for easier absorption.  

![overdose-vitaminc-vitamind-2](//images.ctfassets.net/t9x0u6p47op0/3A1bNEbwmao9mSN3kwbv5i/f356d8c29a046abb092082d072ac2d0b/overdose-vitaminc-vitamind-2.jpg)

## How much vitamin D should I take daily?
The FDA recommends between 400 and 800 IUs per day for children and adults. If you aren’t getting this amount from your diet or the sun, supplementing with [a high quality supplement](https://takecareof.com/products/vitamin-d-1000_2 "a high quality supplement") is a good place to start. The best way to know if you’re getting enough vitamin D is to take a blood test. A doctor can give you the 25(OH)D test. When choosing your vitamin D supplements, look for [Vitamin D3](https://takecareof.com/products/vitamin-d-1000_2 "Vitamin D3"), the most common and bioavailable form of vitamin D.

Vitamin C and D are essential vitamins that help support your health, but is it possible to have too much of a good thing?

Can I Overdose on Vitamin C or Vitamin D? | Care/of Vitamins

Diana Morgan

Can I Overdose on Vitamin C or Vitamin D?

# When Is the Best Time to Take Vitamins?
Does it matter when you take your vitamins? Sometimes! Each vitamin is digested and absorbed a little differently in your body depending on its chemical composition. So mealtimes make a difference. Some vitamins are broken down best with food, some with water, and others should even be taken on an empty stomach. And time of day matters too, some vitamins stimulate your body and are best taken in the morning and others help relax your mind and body and are better suited for bedtime. 

But above all else, the best time to take your vitamins is when it’s most convenient to you. In other words, find a time of day that you will remember to take your vitamins consistently. The most important consideration may be when you will remember to take the vitamin out of habit. 

## Why do people take vitamins?
Vitamins offer a wide range of benefits. Many people take vitamins because they know (or believe) that they have a deficiency within their body. Vitamins can help bridge gaps that exist. For example, a person is most likely to take a vitamin D capsule if he is told by a physician that his vitamin D levels are low. 

![best-vitamins-to-take-vitamins-2](//images.ctfassets.net/t9x0u6p47op0/49e6B8dxYKFuv7MIYepSmJ/3537565b8fb06fe4937e8477d1cc221f/best-vitamins-to-take-vitamins-2.jpg)

Many others take vitamins in a preventive or proactive manner. For example, an expecting mother will take a prenatal vitamin to meet new nutritional needs and prevent some future health conditions for her child.

Some people also take vitamins for the additional benefits, even if they are not deficient. For example, vitamins such as B12 can help to support a person’s energy levels. 

 It is best to take vitamins that you actually need, rather than taking something simply because others are doing it. Vitamins can play an important role in sustaining your overall health and it is best to give your body exactly what it needs.

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## Best time to take water-soluble vitamins
Water soluble vitamins dissolve in water before your body can benefit from them. Therefore, it is important to take these vitamins at a time that is spaced out from food

B vitamins are one example of a water soluble vitamin. In addition to being water soluble, some B vitamins are also known as energy boosters. Therefore, the morning is clearly the most ideal time to take B vitamins. Taking B vitamins first thing in the morning will not only improve your body’s absorption of the vitamins, but it will also ensure that you can reap the energy-related benefits throughout the day. 

## Best time to take fat-soluble vitamins
Fat soluble vitamins are best absorbed when taken close to a meal containing fats and oils. Fat soluble vitamins include vitamin A, D, E, and K (ADEK). A meal that is higher in fats and oils will increase your absorption of these vitamins. 

## Should any vitamins not be taken together?
For the most part, vitamins can be taken together. Although most vitamins are generally considered to be safe, that does not mean they can be taken without any concern for side effects or interactions. If you are taking other medications or you have an existing health condition, you should speak with your physician before taking a new vitamin.

![best-vitamins-to-take-vitamins-3](//images.ctfassets.net/t9x0u6p47op0/5QBpATeEWy7RgQP908CKbW/94ef369f8a83b1c8b213046c97ea639e/best-vitamins-to-take-vitamins-hero-3.jpg)

## Best time to take prenatal vitamins
Prenatal vitamins are an essential component in any woman’s pregnancy (e.g. for baby’s health, nausea, etc.). The most important thing you can do when it comes to prenatal vitamins is establish a routine. Prenatal vitamins should be taken daily, so forming a habit will set you up for success. 

Prenatal vitamins contain numerous vitamins and minerals that expecting mothers need to meet their new nutritional needs. Among these vitamins and minerals are two very important components: iron and methylfolate (the active form of folic acid).

If you are seeking for the most ideal time of day to take a prenatal vitamin, you will want to consider taking it first thing in the morning. Iron–which is contained in most prenatal vitamins–is absorbed best on an empty stomach, so it may be most ideal to take your prenatal vitamin first thing in the morning or before consuming any large meals. Your stomach is less likely to be full of food before bed and you will sleep through any minor stomach concerns that the prenatal vitamin may cause.

Whether it’s the time of day or the food you are consuming, when you take your vitamins can really make a difference. 

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