Can Vitamin C actually protect you against the flu virus or even the current
coronavirus? Are you taking enough of vitamin C? From the dozens of different
brands and products, which one should you choose?
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Vitamin C is an essential nutrient which cannot be produced by humans (
Nutrients. 2017). Because your body doesn't produce or store it, you need daily vitamin C
for continued health. Vitamin C may be one of the most well-known
immune nutrients that protect against immune deficiencies and which supports
the prevention and recovery from the common cold and upper-respiratory issues,
and also protects your cardiovascular system, eyes, skin, and other parts of
your body.
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SOMMAI/ Shutterstock
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Vitamin C is a particularly unique nutrient because it also functions as
an antioxidant that protects your cells against potential damage.
As of October 2021, there are more than 20 studies that have been
launched to investigate the benefits of vitamin C against COVID-19. You
can review the status of these trials on
clinicaltrials.gov.
Vitamin C might help prevent COVID-19 and also lessen the inflammatory
reactions behind some severe COVID-19 cases, according to a
review of research on the topic published in the latest issue of the journal Nutrition.
Vitamin C can be found in a variety of whole, plant-based foods like
citrus fruits, bell peppers, strawberries, and broccoli. Obtaining
nutrients from whole foods is always the best approach, but if you have
difficulty meeting your nutrition needs for any reason, a supplement may
be necessary.
The supplements on this list were chosen based on
quality, manufacturing standards, usability, and price.
Here
are the best vitamin C supplements of 2021.
1– 4. Best capsules
Capsules are the most popular form of vitamin C supplements. These are
among the best on the market.
1. Integrative Therapeutics’ Buffered Vitamin C
Integrative Therapeutics is a supplement company that has held a strong
reputation for quality for over 3 decades. Each capsule provides a dose of
1,000 mg of vitamin C with added minerals that may improve digestive
tolerance. This feature makes it a great option for anyone with a sensitive
stomach or history of difficulty tolerating nutritional supplements (
PubMed).
Integrative Therapeutics holds itself to some of the highest ingredient
sourcing and manufacturing standards in the industry, so you never have to
wonder whether you’re getting a good product. Their manufacturing facilities
are certified by NSF International, a third-party regulatory agency.
This is the third supplement that I've purchased from this brand, and
this seems to be a quality brand. I tried four different Vitamin C
supplements before trying this one. One was way too expensive to
continue using on a consistent basis. The other three gave me
headaches or stomach aches or both. But this one does not cause me any
unpleasant side effects and my skin is healthy and glowing. I didn't
buy it for the skin benefits, but the fact that I am seeing benefits
in my skin tell me it is being sufficiently absorbed and used by my
body.
4.8 out of 5 - more than 1,000 global ratings
2. Kirkland Signature’s Vitamin C
Kirkland Signature provides an affordable alternative to expensive,
high-end supplement brands without sacrificing quality. Each of their
vitamin C capsules contains a 1,000 mg dose of vitamin C and citrus-derived
flavonoids for an added antioxidant boost.
Kirkland Signature’s
vitamin C capsules are verified for purity and quality by United States
Pharmacopeia (USP), so you can rest assured you’re getting exactly what the
label claims.
Both my wife and I take this supplement daily, to boost our immunity
system. We just needed to find the cheapest way of doing it. This
packaging covers almost a full year's supply for both of us. Anybody knows
of a better deal?
4.8 out of 5 - more than 4,000 global ratings
3. Best Liposomal Vitamin C: Dr. Mercola Liposomal Vitamin C
Buy Now on AmazonDr. Mercola's Liposomal Vitamin C employs advanced liposomal technology that helps transport vitamin C molecules across your gut membrane for enhanced bioavailability potential.*
*These statements have not been evaluated by the Food and Drug
Administration.
These products are not intended to diagnose,
treat, cure, or prevent any disease.Amazon Ratings: 4.7 out of 5 - more than 5,000
ratings.
Related Products for Immune Support:
4. Smarter Raw Whole Food Vitamin C
- Vegan, Real Immune Support
- 60 Vegan Capsules
- 100% Made with 11 Premium Raw & Natural Whole Food Berries such as
Acai, Acerola, Amla, Cranberry, Goji, Jabuticaba, Mangosteen, Maqui,
Pomegranate, Strawberry, & Schisandra.
- Lack of Vitamin C can cause Collagen loss leading to wrinkles, aging,
weakened arteries, and immune system. Stress can cause Vitamin C
deficiencies too.
- Not a synthetic Vitamin C supplement
- Natural Full Spectrum Citrus Bioflavonoids, Polyphenols &
Antioxidants.
- Made in the USA
- No Fillers, Magnesium Stearate, Dioxides, Silica, Maltodextrin,
Carrageenan, Soy, Milk, Egg, Corn, Tree Nuts, Artificial Colors, or
Preservatives.
This product is exactly what I was looking for! I'm a Certified
Health Coach and the source of vitamins and what's in them (read the
ingredient list) are both of the utmost importance to me. Finding a
Non-GMO Whole Food Vitamin C that didn't contain harmful chemicals
such as magnesium stearate, silica, dioxides, maltodextrin, soy,
carrageenan was SO IMPORTANT. Because of the purity of this brand, I
will definitely recommend these Vitamin C supplements to clients.
Supplementing with Vitamin C is crucial, but especially when our
immunity may be at risk of being compromised, like during the cold and
flu season. Additionally, these provide antioxidants, substances found
in certain plants and fruits, that help stop free radicals from
causing cell damage in your body. I'm loving this Non-GMO Whole Food
Vitamin C!!
4.7 out of 5 - 2,285 global ratings
5 - 6. Best Chewable Vitamin C Supplement
5. NOW Foods’ Chewable C 500
If you’re not a fan of swallowing pills, NOW Foods’ chewable vitamin C
tablets may be the product for you.
NOW Foods is a reputable brand that produces a variety of affordable, high
quality nutritional supplements. Each orange-flavored tablet provides a
500-mg dose of vitamin C and contains just 1 gram of added sugar. They’re
also 100% vegan and free of major allergens.
NOW Foods prides
themselves on their meticulous testing protocols. Each supplement is
tested in-house for purity and potency, and all of their manufacturing
facilities are certified by the Food and Drug Administration (FDA).
I like the taste of slightly sour, so if you don't like that, maybe you
won't like them. But they are better to chew than any other chewable
vitamin C I have tried. I suddenly have more energy too. I wonder if
it's the vitamin C?
4.7 out of 5 - 724 global ratings
6. Puritan's Pride - Chewable Vitamin C with Rose Hips
Chewables
- Chewable Vitamin C-500 Mg with Rose Hips Chewables, 90 Count
- Highest quality vitamins and supplements
- Scientifically formulated
- Supports immune system health
- Gluten and Soy Free
- 45 to 90 day supply
These are very easy to chew and since I can not swallow normal dice
vitamins do to surgery on my throat. The taste is also good.
4.6 out of 5 - 690 global ratings
7 - 8. Best Gummies
Gummy vitamins are one of the hottest trends in nutrition supplements — and
understandably so. Whether you’re a kid — or a kid at heart — taking your
vitamin C has never been easier or more delicious.
However,
although gummy vitamins are convenient and taste great, they should not be
confused with candy. It’s important that you don’t exceed the recommended
dose, as too much vitamin C could lead to unintended side effects. Like
other supplements, be sure to store them away from little ones to avoid a
potential overdose.
7. Carlson Labs’ Kid’s Vitamin C Gummies
Carlson Labs’ vitamin C gummies for kids are a great option if you’re looking
for a quality supplement specifically designed with your children in mind.Each
orange-flavored gummy provides 125 mg of vitamin C and contains only 2 grams
of added sugar. They don’t harbor any artificial colors, sweeteners, or
preservatives and are 100% gluten- and soy-free.
When it comes to quality, Carlson Labs has been an industry leader since
1965. All of their products are manufactured in an FDA-certified facility
and come with a purity and potency guarantee.
These gummies are good immune support and also taste great. My kiddo
loves these. No bad taste.
4.7 out of 5 - 47 global ratings
8. Purify Life Vitamin C Gummies for Adults & Kids
- Double Strength Immune Support
- Chewable
- Vegan, Gelatin Free, Gluten Free
- Defense Booster Supplement Replaces Capsules, Pills, Tablets & Syrup
- 90 Gummies : 3 Month Supply for Kids, 45 Day Supply for Adults
- Our Vitamin C Chews are 125mg per gummy and 250mg per serving of
adults.
- Help reduce the cough, cold, allergies, congestion, and respiratory
function issues
- Support your body tissue growth & repair, digestion, iron
absorption, high blood pressure management, collagen formation. Boost
development of stronger bones, cartilage, and teeth.
- Completely safe for toddlers, kids, and adults.
- Vitamin C is loaded with antioxidants, and will allow your body’s
natural defenses to fend off unwanted intruders. Protect your internal
cells from harmful free radicals and maintain immunity
I really like the taste of these gummies. Good sweet orange flavor.
Although I will admit that when you open the container they have an
initial weird smell and kind of odd taste right at first which I think is
the sugar crystals on the outside of each gummy. But the inside tastes
great. It's not all sticky on your teeth like some vitamin gummies. Would
be great for kids for extra dose of Vit C. Good price per serving too
4.6 out of 5 - 400 global ratings
9 - 10. Best Liquid
Liquid supplements are a convenient option for anyone looking for a
supplement that can be easily mixed into beverages and absorbed quickly.
9. Pure Encapsulations’ Liposomal Vitamin C Liquid
Pure Encapsulations’ liquid vitamin C is made with a unique, liposomal
form of vitamin C that’s encapsulated in sunflower oil. Research suggests
that liposomal forms of vitamin C may boost your body’s absorption, so you
get more out of each dose (
Trusted Source).
Each teaspoon (5 mL) provides 1,000 mg of vitamin C and
doesn’t contain any added sugars or artificial sweeteners. All of Pure
Encapsulations’ products are certified gluten-free and third-party tested
for quality, purity, and potency.
I love the flavor! I am on a natural healing journey from cancer and we
use large doses of vitamin C. Since it is water-soluble, it leaves the
body within 2-4 hours, so having this liposomal form allows the body to
absorb the C into fat tissue and dispense it over a longer period of time.
Great as an anti-oxidant or as a cancer-fighter in my case. I use this
3x/day on the days I'm not taking high-dose IV vitamin C.
4.5 out of 5 - 43 global ratings
10. Best Organic Vitamin C: Garden of Life’s Organic Vitamin C Spray
Garden of Life’s vitamin C spray is made from a variety of 100% organic,
whole foods like strawberries, blueberries, and tart cherries.You’ll
receive a 60-mg dose of vitamin C in every 5 sprays, and it doesn’t
contain any added sugar or artificial sweeteners. It comes in two flavors
and is suitable for adults and children over 4 years of age.
The dose of vitamin C in this product is lower than many traditional
supplements, making it a great option for anyone who eats a variety
of vitamin-C-containing foods but still needs some extra help
filling in potential nutrient gaps.
All of Garden of Life’s products are third-party tested for quality and
purity, and its manufacturing facilities are FDA certified.
All 7 of us take this. The kids love the flavor and it’s really helped us
stay healthy all winter long. Some of us have problems with our stomachs
after using other kinds of vitamins but not with this spray. We use several
different vitamin sprays made by Garden of Life and love their products
4.8 out of 5 - 24 global ratings
11 - 12. Best Vitamin C Powder Supplement
Powdered supplements are a great, flexible option. Whether you plan on
drinking them mixed into juices and smoothies or want to fill your own
capsules with customized doses, powdered vitamin C is the way to go.
11. Swanson’s Vitamin C Powder

Buy on Amazon
Swanson’s vitamin C powder contains nothing but 100% pure, powdered
vitamin C.
It dissolves easily into almost any liquid, and you
don’t have to worry about any added fillers, sweeteners, or preservatives.
Each scoop provides 1,000 mg of vitamin C, but you can tailor the serving
size to fit your needs.
When it comes to purity and quality,
Swanson holds themselves to exceptionally high standards. All of their
supplements undergo in-house and third-party testing, so you can rest
assured you’re getting a great product every time.
Lots in the container. The only other place I have seen to buy powdered
Vit. C is Whole Foods, and the container is much smaller. Living in San
Antonio, TX, you have to build up your immune system for all the allergens
here. Since I started using Vit. C mixed with natural honey, green tea,
and lemon juice every day, I have not gotten sick in three years. It
really is worth it.
4.5 out of 5 - more than 450 global ratings
12. Best Vitamin C Supplement for Immune System: Emergen-C Immune+
#2 in Vitamin C Supplements of Amazon Best Sellers.
Customer Reviews: 4.9 out of 5 - more than 16,000 global ratings.
About this item
- One serving provides 1,000 mg vitamin C, 1,000 IU (25 mcg) Vitamin D and 10 mg zinc.
- Includes 10 single-serving packets (033 oz each) of Emergen-C Immune+ in Super Orange flavor
- An Enhanced Immune Support Formula with 1,000 mg of Vitamin C, plus Vitamin D and Zinc*
- Packed with more Vitamin C than 10 oranges(1) to support your immune system*
- Made with natural fruit flavors and sweeteners for a delicious Super Orange flavor
- Contains the Proprietary complex with Wellmune WGP beta-glucans and arabinogalactans
- Vitamin C drink mix dissolves quickly in water; it’s fizzy, refreshing and caffeine-free
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How to choose
Selecting the right vitamin C supplement depends on a variety of factors,
including the form, quality, dose, and price. There are many forms of vitamin
C available (ascorbic acid, sodium ascorbate, calcium ascorbate, liposomal
vitamin C etc.) but there is not much evidence that one form is much better
than another.
The ascorbate forms may be easier on your stomach, but you will still run a
risk of developing loose stools at too high a dose.
You can
also start by considering how you’ll be using the supplement. For instance,
if you prefer to take a pill, you’ll want to check out encapsulated vitamin
C supplements.
If you don’t like swallowing pills or want to mix
it into beverages, your best bet is to consider liquid or powdered
supplements.
Next, you want to check the supplement’s quality.
Evaluate whether a brand is reputable by exploring their ingredient sourcing
and manufacturing standards. A good product will also be tested by
third-party organizations, such as USP, Consumer Labs, or NSF
International.
Take a look at added ingredients, too. If you’re
trying to limit your intake of added sugars, you want to opt for a
supplement that doesn’t contain sugar.
Another factor to consider is the dosage. The recommended daily amount of
vitamin C for adults is 90 mg for men, 75 mg for women, and up to 120 mg
for women who are pregnant or breastfeeding. However, certain medical
conditions may require that you take much higher doses (NIH).
Children have lower vitamin C requirements, which range from 25–75mg per
day, depending on their age. However, it’s not generally advised to give
children a vitamin C supplement unless their pediatrician has recommended
it.
Note that the Tolerable Upper Intake Level (UL) for vitamin C for men, as
well as women ages 19 and above, is 2,000 mg. Meanwhile, the UL for
children ranges from 400–1,800 mg, depending on age. Daily intakes at or
below these amounts are unlikely to result in any adverse health
effects (NIH).
Vitamin C supplements come in a wide range of dosage options. If you’re
looking for a high dose, it may be more economical and convenient to find a
concentrated supplement. This way you won’t be stuck consuming multiple
servings of a lower dose option.
Generally, high doses of vitamin
C are unnecessary and could contribute to harmful side effects. Only consume
high doses if your healthcare provider recommends doing so.
Finally,
you want to consider your budget. Some professional-grade brands can be
expensive, but keep in mind that a higher price doesn’t necessarily mean a
better product. There are plenty of high quality options available at
various price points.
Can Vitamin C prevent Coronavirus?
Check out the evidence tracker on vitamin C and COVID-19
from
c19vitaminc.com (constantly updated).
A review, published December 7, 2020, in the journal Nutrients,
recommended the use of vitamin C as an additional therapy for
respiratory infections, sepsis and COVID-19.
In December
16, 2020, Rob Verkerk, Ph.D., founder and scientific director of the
Alliance for Natural Health, announced the launch of an
international vitamin C campaign in response to the Nutrients review, which "puts all the
arguments and science in one, neat place."
However, large controlled studies demonstrating vitamin C's
effectiveness in COVID-19 are still lacking. There are many such
studies underway and you can review the status of these trials
on
clinicaltrials.gov. As of September 2021, more than 50 studies have been launched to
investigate the benefits of vitamin C against COVID-19.
The
National Institutes (NIH) Panel has determined that there are insufficient data to recommend
either for or against the use of Vitamin C for the treatment of
non-critically ill COVID-19 (last updated November 2020).
At the Cleveland Clinic, researchers are enrolling people into
a
study to see if vitamin C or zinc — or a combination of the two — can
reduce the duration of COVID-19 symptoms. Patients will be given the
supplements after they have tested positive for COVID-19.
Currently, no definitive evidence supports the use of oral vitamin C
supplements to prevent COVID-19.
Vitamin C may help shorten
the duration and severity of colds caused by other viruses, but this is
no guarantee that it will have the same effect on the coronavirus that
causes COVID-19.
Additionally, vitamin C is
a water-soluble vitamin. It dissolves in water, meaning that excess
amounts aren’t stored in your body but instead eliminated through your
urine. Taking more vitamin C does not mean that your body is absorbing
more (
nih).
High dose vitamin C supplements may even cause diarrhea,
as they can signal your body to pull water out of the cells and into
your digestive tract (
NIH).
Moreover, although high dose vitamin C appears promising
for COVID-19 treatment, these doses were exceptionally high and given
via IV — not taken orally. Additionally, it was only given in cases
severe enough to require hospitalization.
Your best bet is to eat a diet that’s full of a variety of fruits and
vegetables, which naturally provide all the vitamin C a healthy person
needs — along with many other nutrients and antioxidants.
Possible side effects
Although vitamin C is a natural compound, getting too much of it can cause
uncomfortable and potentially serious side effects.
Some of the
most common reported side effects include headaches, flushed skin, nausea,
and vomiting (
NIH). Consuming high doses of vitamin C for prolonged periods may also
increase your risk of kidney stones (
NIH).
Always consult your healthcare provider prior to adding any nutritional
supplement to your routine.
Conclusion
Vitamin C is an essential nutrient that plays a diverse role in keeping your
body healthy. We need Vitamin C and we should ideally get it from whole
fruits and vegetables.
Although vitamin C deficiency is rare in developed countries, it can cause
serious health problems that, if left untreated, could be fatal. If you have
trouble getting enough vitamin C from your diet, supplements are a great
option. They come in a variety of physical forms, dosages, and price points.
Most people do not take 5 servings of fruits and vegetables on a daily
basis. Further, Vitamin C is easily destroyed by heat during cooking and our
human bodies are not capable of producing and storing Vitamin C. That being
said, we would not recommend taking high dose supplementation of Vitamin C
for maintenance purposes. Up to 500 mg/day should be reasonable.
Many vitamin C supplements in the market are above the US RDA. It’s important
to seek a doctor’s advice if you intend to take high dose vitamin C on a long
term basis. To be on the safe side, you may also request for your kidney
functions to be monitored.
High dose Vitamin C are considered prescription dosage and is meant for
'treatment' and not 'maintenance'.
So should you just focus on
Vitamin C alone or should you consider other supplements? Vitamin C alone
might not be enough as an optimal strategy. A combination and a synergistic
mix of supplements would be better.
What if you have seen
multiple doctors and they are giving you mixed recommendations? Our
recommendation is to stick to a data driven principle and discuss the
evidence out there with doctors who are open to be updated with data-driven
science and evidence based medicine.
Related..
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products or the accuracy of the information provided herein.
Accordingly, reliance on any such information provided herein is solely
at your own risk. Your independent investigation and evaluation is
therefore strongly advised. Neither we or our affiliates are responsible
or liable for the use or misuse of the information provided herein, and
your use thereof or of this website acknowledges and accepts these
terms.
Always see your doctor before taking these supplements. Be aware
that most of the 'treatment' dosages are above the recommended dietary
allowance (RDA) and therefore such doses should not be maintained on a
long term basis.
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