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Is Vitamin C 125 mg a Day Too Much or Too Little?
Vitamin C 125 mg a day is a little above the adult RDA of 75 mg for women and 90 mg for men, and about 6% of the 2,000 mg upper limit. The Reviralis Complete label prints 125 mg for two capsules. Doses near the limit can upset the stomach, and vitamin C helps the body absorb iron.
Written by the Goreviralis label deskUpdated · 4 min read
Where does 125 mg of vitamin C fall between need and limit?
It sits just over a day's need and a long way under the upper limit. Adults need 90 mg (men) or 75 mg (women), and the upper limit is 2,000 mg (NIH ODS, Vitamin C).
| Measure | Amount | 125 mg as a share |
|---|---|---|
| Label, two capsules | 125 mg (139% DV) | 100% |
| RDA, men | 90 mg | 139% |
| RDA, women | 75 mg | 167% |
| Upper limit | 2,000 mg | 6% |
The label prints the vitamin as ascorbic acid. A glass of orange juice or a sliced pepper adds to the day's total, since food counts too.
Can vitamin C upset your stomach?
At amounts around the 2,000 mg limit it can cause stomach upset and loose stools (NIH ODS, Vitamin C). At 125 mg that is not the usual concern.
The label tells you to take two capsules with an 8 oz glass of water, 20 to 30 minutes before a meal. If your stomach complains, the whole product is the suspect, not only the vitamin C, because the 661 mg blend has 18 more names with their own notes. Tell a clinician if stomach trouble keeps coming back.
Slide your usual mealtime on the dial to see the label's timing window.
For an 8:00 am meal, take 2 capsules with 8 oz of water between 7:30 am and 7:40 am.
- Two capsulesThat is the label's serving: two (2) capsules, not one. The pack and sales page say one capsule; this site follows the label.
- One 8 oz. glass of waterThe label asks for 8 ounces of water with the capsules.
- 20 to 30 minutes before a mealThe label says this timing gives the best results, "or as directed by your healthcare professional."
- Your clinician's direction winsIf your healthcare professional gave you other directions, follow those and keep every prescribed medicine, including any antiviral, going.
The timing comes from the label's suggested use. A dial is a reminder aid, not a promise of any result.
Does vitamin C change how you absorb iron?
Yes. Vitamin C helps the body absorb iron from food and supplements.
The label prints only 1 mg of iron, so the pairing on this label is small. It matters more for people who have too much iron stored, such as those with hemochromatosis, or who take iron pills on top. Anyone told to limit iron should ask a clinician before using a vitamin C product. Our related post covers iron overload and multivitamins.
- Count vitamin C from fruit drinks, gummies and powders too.
- Do not read 139% as a sign you need more. It compares with a small reference.
- Regular vitamin C has not been shown to stop colds in most people (NIH ODS, Vitamin C).
Reviralis: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWhat should you ask the pharmacist about vitamin C?
Ask: "Between my supplements and my iron, how much vitamin C do I get, and does it matter for my medicines?" Keep taking prescribed medicine, including any antiviral, unless your prescriber says otherwise. The label asks anyone with a medical condition to check first, and no source we read tested Reviralis itself.
All 22 printed amounts are laid out on the supplement facts page. See how to take Reviralis for the label's timing and the side effects page for the wider cautions.
FAQ01
Vitamin C amount questions
Is 125 mg of vitamin C a day enough?
It is above the adult RDA of 90 mg for men and 75 mg for women. Needs are also met by food such as citrus and peppers. Whether you need a supplement is a question for your clinician or pharmacist.
How much vitamin C is too much per day?
The adult upper limit is 2,000 mg a day. Amounts near it can cause stomach upset and diarrhea. The Reviralis label prints 125 mg, about 6% of the limit, but add vitamin C from every other product you take.
Does vitamin C prevent colds?
Regular vitamin C supplements have not reduced colds in the general population, according to NIH. That is one reason a 139% Daily Value should not be read as protection. It compares the amount with a small reference only.
Does vitamin C interact with iron pills?
Vitamin C raises iron absorption. For most people that is a plus, while for people who store too much iron it is a reason to ask first. The Reviralis label prints 1 mg of iron, so the effect from this line is small.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Reviralis. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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