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How Often Can You Take Vitamin C

Which Supplements Are Right For You

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Although supplements may be a good alternative for those of us who need a boost during the winter, it is possible to overdo it. For example, too much vitamin C could lead to a risk of developing kidney stones, while too much vitamin D can lead to hypercalcemia, leading to nausea and constipation.

Talking to your doctor before you add any kind of supplement to your diet is important to ensure you’re getting the right vitamins and nutrients you actually need.

Supplementing needs to be based on each individual and often on blood testing, Hultin noted. Supplementing with too high of a dose of many vitamins and minerals can be dangerous so be sure that you’re speaking with your doctor and registered dietitian for safety.

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Take Iron Every Other Day

Data published in The Lancet in 2019 suggested that giving iron-depleted women daily iron supplements as divided doses reduced iron absorption. On the other hand, providing iron supplements in single doses on alternate days appeared to optimize iron absorption and might be a preferable dosing regimen.

Are Vitamin C Supplements Necessary

It is always best to get your nutrients from food rather than supplements.

Fruits and vegetables, especially citrus fruits, are good sources. Foods naturally rich in vitamin C include:

  • Raw red peppers: 95 mg per 1/2-cup serving
  • Orange juice: 90 mg per 3/4-cup serving
  • Orange: 70 mg per one medium fruit
  • Kiwi: 64 mg per one medium fruit
  • Raw green peppers: 60 mg per 1/2-cup serving
  • Cooked broccoli: 51 mg per 1/2-cup serving
  • Strawberries: 49 mg per 1/2-cup serving
  • Cooked Brussels sprouts: 48 mg per 1/2-cup serving
  • Tomato juice: 33 mg per 1/2-cup serving
  • Cantaloupe: 29 mg per 1/2-cup serving

If you don’t get enough vitamin C from what you eat, a supplement can help get you to the right levels.

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Good sources of Vitamin C are red peppers, oranges, lime, lemon, broccoli and even strawberries. While most fruits and vegetables are rich sources, the ascorbic acid can often get quashed when you cook them. Hence, supplementation is sometimes needed to match the requirement or for those who are deficient.

What Is Vitamin C Used For

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Vitamin C has been used to treat and prevent many conditions, including:

  • Asthma, a chronic lung disease
  • Bronchitis, an inflammation of the air passages in the lungs
  • Cancer
  • Fatigue
  • Rash

Vitamin C deficiency is treated with vitamin C supplements. Some symptoms improve within the first 24 hours of treatment. Others may take a few weeks to go away.

In severe cases, the bones may be affected. When this happens, surgery may be needed.

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What Is The Most Important Information I Should Know About Vitamin C Plus Zinc

Multivitamins and minerals can cause serious or life-threatening side effects if taken in large doses. Do not take more of this medicine than directed on the label or prescribed by your doctor.

Ask a doctor or pharmacist if it is safe for you to use multivitamins and minerals if you have other medical conditions or allergies.

Ask a doctor before using this medicine if you are pregnant or breastfeeding. Your dose needs may be different during pregnancy. Some vitamins and minerals can be harmful if taken in large doses. You may need to use a specially formulated prenatal vitamin.

What Happens If You Eat Too Many Vitamins

Too much of any good thing can be harmful. This is especially true when it comes to vitamins and minerals that your body needs in order for you live long, healthy life! Vitamins like vitamin C or zinc may cause nausea while too many selenium molecules could lead into hair loss as well muscle weakness/ fatigue all without being too flashy about them so dont take risks with these important nutrients

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What Is Iron Deficiency Anemia

Iron deficiency anemia occurs when the body does not have enough iron. It can be diagnosed with a simple blood test. If untreated, IDA can cause a variety of symptoms, including chronic fatigue, headaches, and an irregular heartbeat.

Anyone can become iron deficient, but some people are more likely to develop the condition. For example, pregnant people are more at risk for developing IDA because iron needs increase throughout pregnancy.

What Are The Side Effects And Risks Of High


Intravenous high-dose ascorbic acid has caused very few side effects in clinical trials. However, high-dose vitamin C may be harmful in patients with certain risk factors.

  • In patients with a history of kidney disorders, kidney failure has been reported after ascorbic acid treatment. Patients with a tendency to develop kidney stones should not be treated with high-dose vitamin C.
  • Case reports have shown that patients with an inherited disorder called G-6-PD deficiency should not be given high doses of vitamin C, due to the risk of hemolysis .
  • Since vitamin C may make iron more easily absorbed and used by the body, high doses of the vitamin are not recommended for patients with hemochromatosis .

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When Is The Best Time To Take Prenatal Vitamins

While they are important throughout pregnancy, the best time to start taking prenatal vitamins is before youre pregnant when youre planning to conceive, says Dr. Perez-Gallardo.

And while youre at it, also take 400 micrograms of folic acid daily three months before you plan to get pregnant. Folic acid is essential for the development of your babys neural tube. Not having enough can lead to neural tube defects, he says.

Whens the best time to take prenatal vitamins and folic acid?

  • Folic acid: Since its a water-soluble vitamin, take it with a glass of water on an empty stomach.
  • Prenatal vitamins: Take these with water and a meal for optimal absorption. Its best to take them with breakfast or lunch, which lowers the chance of an upset stomach and acid reflux.

Is Taking A Huge Dose Of Vitamin C Bad For Me

Vitamin C is an important nutrient, but as the old saying goes too much of a good thing can be a bad thing.

After taking too much vitamin C, you may experience symptoms such as:

  • Diarrhea

So how much vitamin C is too much?

For adults, the daily upper limit of vitamin C is 2,000 mg. For teens, it’s 1,800 mg. For children, the upper limit depends on age, and it ranges from 400 to 1,200 mg per day.

In addition, vitamin C is water-soluble, making it hard for your body to store it with excess being secreted in your urine. So even if you’re adult and can handle the 1,000 mg in each vitamin C packet or pill, just know that your body can’t absorb more than about 400 mg. This means that most of the vitamin C in that supplement you’re taking just goes down your toilet .

All this to say, however, that getting the recommended amount of vitamin C is still a critical step in staying healthy, as this vitamin plays many important roles in your body. But, you don’t need to take a supplement to make that happen.

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Can You Take Too Much Vitamin C

The tolerable upper intake for adults is 2 grams of Vitamin C consuming more than that can result in diarrhea and other unpleasant GI disturbances, says Greaves. She admits that severe side effects from too much ascorbic acid are very rare, but you may experience some discomfort if you take too much. Its pretty much impossible to have a vitamin C overdose, but lets not test that out.

The real problem with taking more vitamin C than you need is that it all goes to waste. Up to 100 mg a day of vitamin C will get almost completely absorbed, says Francesco-Maria Serino, MD, PhD. Above 100 mg a day and the fraction of vitamin C absorbed is progressively smaller. If you take more than 1 gram of vitamin C per day, less than 50% is actually absorbed and its eliminated by the kidneys.

That literally means that a 500 mg vitamin C supplement mostly gets peed down the drain.

Impair The Effectiveness Of Niacin

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Evidence suggests that taking vitamin C supplements may impair the bodys ability to increase high density lipoprotein cholesterol in people taking the combination drug niacin-simvastatin. This drug combines the vitamin niacin with the statin simvastatin , and people take it to treat high cholesterol.

Doctors consider HDL cholesterol the good cholesterol because it reduces the amount of harmful cholesterol in the blood.

If a person takes vitamin C supplements and niacin-simvastatin, they should talk to their doctor about ways to make each more effective. Doctors do not know whether vitamin C also affects the ability of other medicines similar to Zocor.

A persons body cannot make vitamin C, so people need to eat enough foods that contain vitamin C to meet their daily needs. If someone is at risk of a vitamin C deficiency, they can take vitamin C supplements.

The advise aiming for the following RDA of vitamin C each day:

90 mg 75 mg

People who smoke should take 35 mg more vitamin C per day than those who do not smoke.

During pregnancy or when breastfeeding, women should get the following levels of vitamin C per day:

  • 1418 years: 80 mg during pregnancy and 115 mg when breastfeeding
  • 19 years and older: 85 mg during pregnancy and 120 mg when breastfeeding

There is not enough research to suggest an RDA for vitamin C in those younger than 1 year of age. As a result, the ODS provide an adequate intake, which is the amount that is likely to be sufficient:

  • broccoli

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Choose Your Dietary Sources Wisely

If youre looking to boost iron absorption in your body through food, its helpful to focus on animal sources, Dwyer says. This is because of the heme form of the iron that these foods contain. Red meat, chicken, and shellfish can be helpful additions to your diet.

If you follow a vegetarian or vegan lifestyle, know that while there are dietary iron sources that are animal-free, you may need to consider taking a supplement to prevent anemia.

Intravenous Vitamin C Plus Thiamine With Or Without Hydrocortisone In Critically Ill Patients Without Covid

Two small studies that used historic controls reported favorable clinical outcomes in patients with sepsis or severe pneumonia who received a combination of vitamin C, thiamine, and hydrocortisone.8,9 Subsequently, several randomized trials in which patients received vitamin C and thiamine to treat sepsis and septic shock showed that this combination conferred benefits for certain clinical parameters. However, no survival benefit was reported. Two trials observed reductions in organ dysfunction 10,11 or the duration of shock12 without an effect on clinical outcomes. Three other trials, including a large trial of 501 sepsis patients, found no differences in any physiologic or outcome measures between the treatment and placebo groups.13-15

See for a list of clinical trials that are evaluating the use of vitamin C in patients with COVID-19.

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Look At The Overall Formulation Of Your Product

There are different types of vitamin C that you might see pop up in different types of products. Some of these are more stable than others, meaning they wont oxidize as quickly, and some of them have different properties that can make them more suited to certain skin types.

For example, L-ascorbic acid and sodium ascorbyl phosphate are water-soluble, meaning theyre more likely to show up in products that are lighter and better suited to oilier skin. Check out BeautyBio the Daily Vitamin C Day Serum With Antioxidant Complex , Mad Hippie Vitamin C Serum , or SkinCeuticals Phloretin CF .

If you have dry, mature skin, Dr. Hogan recommends looking for more moisturizing products containing lipid-soluble forms of vitamin C, like ascorbyl palmitate and tetrahexyldecyl ascorbate. For something containing these ingredients, look into Biossance Squalane + Vitamin C Rose Oil , the Ordinary Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F , or Obagi Clinical Vitamin C Eye Brightener .

Vitamins That Are Fat

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Vitamins like Vitamin A, D, or E should only ever be taken in small doses. Unlike Vitamin C, too much of these vitamins at once an actually create a really toxic effect on your own body. They also are absorbed by your body much differently, often needing oils to help your body break it all down. Because of this, it is recommended to always take these vitamins when you are eating a meal so you dont feel sick!

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Is Zinc Hard On Your Stomach

There is some evidence that taking very high doses of zinc, such as thirty grams or more per day for an extended period may be unsafe and might cause stomach pain vomiting. However there are no known health risks when applied topically with small amounts like ten to twenty percent composition cream under the skin its likely safe!

What I Did When Sickness Was Coming On

About 3 months ago I attended a medical lecture on osteoarthritis in the elderly. There was someone there seated near me, who was coughing during the lecture, but frankly I did not think much about it. Some days later, I awoke in the morning with a low grade temperature, sneezing and coughing and felt that I had picked up an upper respiratory infection. I was not tested, nor did I go to the doctors or the hospital to be tested.

I took 10,000 mg of plain vitamin C , 5 times during the day. Yes, I swallowed 50,000 mg of vitamin C during the day from about 6 AM until about 10 PM that night. I awoke the next morning, feeling great, with no symptoms of an infection!

I can tell you many stories about people who take a minimum of 10,000 mg of vitamin C every day on my recommendation, and who all have told me that they are feeling great, and like myself, do not get ill and are not at all worried about their health in this coronavirus pandemic!

Pharmaceutical medicine does not like vitamin C. After all, vitamin C works, is not expensive, and has no side effects. But vitamin C has changed my life, and the life of everyone I know who will take the time to listen and to have an open mind on this subject.

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Can Vitamin C Fight A Cold

A small amount ofresearch from the 1970s suggestedvitamin C was the answer to preventing and treating the common cold. For decades this has fueled the old wives tale that vitamin C boosts the immune system and can prevent illnesses such as cold and flu. Continuing research has indicated that this isnt quite the case. Whilesome datasuggests that extra vitamin C may help those who partake in extreme exercise or are active in cold environments, its not the magic pill people many folks make it out to be. If you are falling short of your daily needs for vitamin C you will potentially see better immune function when that deficiency is corrected. A study from 2017 determined that meeting needs for vitamin C would be enough to help prevent some infections from occurring while higher doses are needed to fight inflammation from existing infections.

The research is more compelling on how the antioxidant powder of vitamin C can fight inflammation and possibly shorten the duration of an illness when taken at the onset of symptoms. Newly publishedresearchcontinues to explore the antioxidant powder of vitamin c and both athletes and non-athletes. More importantly, this doesnt translate to more is better. Thereissuch thing as too much vitamin C.

How To Take Ascorbic Acid

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  • Before you start taking the tablets, read the manufacturer’s printed information leaflet from inside the pack.
  • Ascorbic acid tablets are usually taken once a day. Doses of 25-75 mg are sufficient to prevent vitamin C deficiency. You can take the tablets at whatever time of day you find easiest to remember, either before or after meals. If you have been prescribed a higher dose , your doctor will recommend that you take this in divided doses. Your dose will be on the label of the pack to remind you about what the doctor said to you.
  • Do not take more than the dose which has been recommended or prescribed.
  • Some ascorbic acid tablets should be chewed before they are swallowed and others need to be dissolved in water first. Check the label on the container of your supply and follow the directions given.
  • If you forget to take a dose, don’t worry, just take the next dose when it is due. Do not take two doses at the same time to make up for a missed dose.

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/5the Recommended Daily Intake Of Vitamin C

According to Mayo Clinic, men above 19 years should take 90 mg of Vitamin C daily and for women is 75 mg daily. During pregnancy and breastfeeding the need for this water-soluble nutrient increases. Women need to take 85 mg and 120 mg of Vitamin C respectively during this special time. Smokers also need more nutrients as smoking can deplete vitamin C levels in the body. 35 mg of this vitamin is sufficient for a smoker. Our body’s capacity to absorb Vitamin C decreases by 50 per cent when you take more than 1000 mg of this vitamin in a day. Prolonged excessive intake of this vitamin can lead to several side effects.


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