TheyaVue safety
TheyaVue Side Effects: Niacin Hits 40 mg NE Against A 35 mg Limit
No warnings were published for this product. So we read the panel against the federal fact sheets and counted what two capsules a day adds up to.
Quick answer
No warnings panel was supplied for TheyaVue, which is a gap, not a reassurance. Following the directions (two capsules daily) pushes niacin to 40 mg NE, over the 35 mg adult upper limit. Zinc reaches 32 mg against a 40 mg limit. No side effects are published for the product.
Key facts
- Warnings panel, interaction note, storage line: none supplied.
- Niacin: 20 mg NE a capsule, 40 mg NE at two a day. NIH upper limit for adults: 35 mg.
- Zinc: 16 mg a capsule, 32 mg at two a day. NIH upper limit: 40 mg from all sources together.
- Vitamin A is beta-carotene, 50 mcg RAE a capsule. The National Eye Institute advises current and former smokers to avoid the AREDS formula with beta-carotene.
- For adults 18 and over. Pregnant or breastfeeding: ask a clinician first.
- Side effects listed for this product: not published.
- If something goes wrong: stop, keep the bottle and the lot code, see a clinician.
Is TheyaVue safe?
We cannot say yes or no, and nobody who reads this label honestly can. No warnings panel was supplied. There is no caution for pregnancy, no interaction note, no keep-away-from-children line and no storage advice in the material we were given.
An empty warnings section is not the same as a clean one. It is a section we cannot read to you. So this page works from the numbers instead: fourteen rows have amounts, and the NIH Office of Dietary Supplements gives reference figures for several of them.
Treat what follows as general background. It is not this label speaking, and it is not medical advice.
What do the key safety numbers look like side by side?
| Row | TheyaVue at 2 a day | Federal reference |
|---|---|---|
| Niacin | 40 mg NE | Adult upper limit 35 mg; daily need 16 mg NE (men), 14 mg NE (women) |
| Zinc | 32 mg | Adult upper limit 40 mg, all sources; daily need 11 mg (men), 8 mg (women) |
| Vitamin A (beta-carotene) | 100 mcg RAE | No upper limit set for beta-carotene; smokers warned off high doses |
| Vitamin E (synthetic) | 20 mg | Daily need 15 mg; supplement upper limit 1,000 mg |
| Proprietary blend | 481 mg | No individual amounts published |
One row is over its line, one is close, and one is a blend with no figures at all.
What are the side effects of TheyaVue?
None are published for this product. No trial of the formula has been published either, so there are no recorded rates of anything.
The federal pages describe what too much of certain nutrients can do. Too much zinc can bring nausea, dizziness, headaches, upset stomach, vomiting and loss of appetite. Very high niacin doses can bring nausea, heartburn, abdominal pain and, at far larger amounts, liver problems.
Those effects belong to doses well above what two capsules supply. They are listed so you know what to watch for, not to say you will meet them.
Why does niacin cross the 35 mg limit?
One capsule has 20 mg NE of niacin. The adult daily need is 16 mg NE for men and 14 mg NE for women, so one capsule already covers a day. The directions ask for two capsules, which is 40 mg NE. The adult upper limit set by the NIH is 35 mg.
You cross that line by following the directions, not by misusing the bottle. Nothing on the label mentions it.
Keep it in proportion
An upper limit is the highest daily intake at which no harm is expected across a population. It has a safety margin built in. Being 5 mg over it is not a poisoning. It is a reason to tell your clinician and to count other sources.
Is 32 mg of zinc a problem?
It is under the 40 mg adult upper limit. But that limit counts everything: food, drinks, supplements and medicines. The bottle uses 32 mg of it, which leaves 8 mg for the rest of your day.
The adult daily need is 11 mg for men and 8 mg for women, so 32 mg is three to four times a day's worth. If you add a multivitamin or a zinc lozenge, you can pass 40 mg quickly. See our separate post on stacking.
Should smokers worry about the beta-carotene?
Ask a clinician first, and show them the vitamin A row. The vitamin A here is beta-carotene. The National Eye Institute reports that AREDS2 took beta-carotene out of the original formula because former smokers who took it had a higher rate of lung cancer.
The amount here is small: 50 mcg RAE a capsule, 100 mcg RAE at two a day. The studies behind the warning used high-dose supplements. That is a good reason to ask, not a reason to panic.
Which other ingredients deserve a question?
- Vitamin E: the panel uses the synthetic form. The NIH counts 1 mg of natural vitamin E as 2 mg of the synthetic kind. The amount is 10 mg a capsule, 20 mg at two a day.
- Bilberry: the label says fruit. The National Center for Complementary and Integrative Health says bilberry fruit is considered safe in food amounts, while the leaves may be unsafe in high doses.
- Quercetin, rutin, grape seed extract and alpha lipoic acid: no amounts are published. Mention them to a pharmacist if you take prescription medicine, blood thinners or blood sugar medicine.
Take the bottle itself to the counter. Reciting ten ingredient names from memory is how details get lost.
Who should speak to a doctor before taking it?
Adults only: the product is for ages 18 and over. Beyond that, ask first if you are pregnant or breastfeeding, if you take prescription medicine, if you smoke or used to, or if you manage a health condition.
And if your eyesight has changed, book an eye exam before anything else. The National Eye Institute says a dilated eye exam is the only way to check for many eye diseases early on. A capsule cannot do that job.
If you feel unwell after taking any supplement, stop, write down what happened and when you started, keep the bottle and see a clinician. The FDA accepts reports of serious problems with supplements. You can also tell the sales line on +1 (315) 724-2018, with your order ID.
Frequently asked questions
Is TheyaVue safe?
No warnings panel was supplied, which is a gap rather than a reassurance. Two rows deserve attention. Niacin totals 40 mg NE at the directed dose, above the 35 mg adult upper limit. Zinc totals 32 mg, under the 40 mg limit but close to it.
What are the side effects of TheyaVue?
None are published for this product. Federal pages describe what too much zinc or niacin can cause, such as nausea and headaches, but those effects belong to larger amounts.
Does TheyaVue interact with medicine?
No interaction note was supplied. The blend has quercetin, rutin, grape seed extract and alpha lipoic acid with no published amounts, so show the panel to your pharmacist.
Can smokers take TheyaVue?
Ask a clinician first. The vitamin A is beta-carotene, and the National Eye Institute advises current and former smokers to avoid the AREDS formula that contained it. The amount here is small, 50 mcg RAE a capsule.
Can I take TheyaVue if I am pregnant?
Ask a clinician first. No pregnancy statement was supplied either way. The product is for adults 18 and over.
What should I do if I feel unwell after taking it?
Stop taking it, write down what happened and the date of your first capsule, keep the bottle and see a clinician. You can also report serious problems to the FDA and tell the sales line.
Sources
- NIH Office of Dietary Supplements. Niacin. ods.od.nih.gov.
- NIH Office of Dietary Supplements. Zinc. ods.od.nih.gov.
- NIH Office of Dietary Supplements. Vitamin A and Carotenoids. ods.od.nih.gov.
- NIH Office of Dietary Supplements. Vitamin E. ods.od.nih.gov.
- National Center for Complementary and Integrative Health. Bilberry. www.nccih.nih.gov.
- National Eye Institute, NIH. About the Age-Related Eye Disease Studies (AREDS and AREDS2). www.nei.nih.gov.
- U.S. Food and Drug Administration. Information for Consumers on Using Dietary Supplements. www.fda.gov.
Our view
The honest summary is short. Two published ceilings sit very near this product at its own directed dose, one crossed and one close. Neither is a danger sign on its face. Both are things a label should say out loud, and this one does not.
If you are healthy, take no other supplements and your clinician is happy, the arithmetic may not trouble you. If you take a multivitamin, smoke or used to, or use prescription medicine, the arithmetic is the first conversation to have.
This page is general information and not medical advice. TheyaVue is a dietary supplement that is not FDA approved, and no dietary supplement is. It is not meant to diagnose, treat, cure or prevent any disease.
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