Ferritin Stuck? 7 Reasons to Question Your Iron Pill (Reason 2 Is Printed on the Bottle)
Hint: it’s the big number. Reason 1: what people report on less than a third of it. Reason 5 may change what “normal” means.
Maybe you took your iron every day and your number just sat there. Maybe the pill was the problem, and your stomach quit before your ferritin moved.
Either way, somebody handed you a 65 mg tablet. (Your bottle may say 325 mg of ferrous sulfate. It’s the same tablet.) Nobody told you where the 65 comes from. That’s Reason 2.
First, what you came for: the ferritin numbers people report on a 19 mg iron strip. It’s the one in the clip above, and yes, we sell it.
25 to 45 at the 30-day mark. 22 to 58 in about 13 weeks. That’s what people report on a 19 mg strip.
That’s less than a third of the 65 on your bottle. Here are two public comments, word for word, and the number from our ads.
This one moved at the 30-day mark:
Facebook comment on a CAVAÉ ad, August 2026 (part of a longer comment)“I tested late June and my ferritin was at 25. Started the melts a week or two later (no other iron supplements in between) and at the 30 day mark tested again and my ferritin was 45.”
And the number from our ads:
This one started at 6 and hoped for more:
Reddit, r/Anemic, September 2026 (part of a longer comment)“I just got my lab results and they weren't as good as I was hoping. I was at Ferritin of 6 in June and now (11 weeks later) am at 14.”
Self-reported, not checked by us against a lab report. Results vary.
Those were all on 19 mg. Here’s where the 65 on your bottle comes from.
The 65 on your bottle is over the NIH’s daily upper limit for healthy adults. As far as we can find, it traces back to an old pharmacy weight.
The big 65 is the iron in one tablet. The small print, 325 mg, is the weight of the whole compound, ferrous sulfate. Only a fifth of that is iron.
The NIH puts the upper limit for healthy adults at 45 mg a day. One 65 mg tablet is over it. The NIH says doses that high may cause nausea and constipation. It also says doctors sometimes prescribe more for anemia.
Why 65? One standard label still prints the tablet as “325 mg (5 gr).” That’s five grains, an old pharmacy weight. We couldn’t find a guideline that explains the 65.
Now, about that nausea and constipation.
The standard drugstore iron pill is ferrous sulfate, and it’s rough on stomachs. There’s no ferrous sulfate in this strip.
In 20 trials with 3,168 adults, ferrous sulfate carried about 2.3 times the odds of stomach and gut side effects, next to a pill with nothing in it.
About 7 in 10 of the buyers we asked had tried iron pills before this.
If you stop taking your iron, it can’t raise your number. So we sell one that’s built to be easy to take.
cavaé melt is a thin raspberry strip with iron in it. Open the sachet, put the strip on your tongue, let it melt, then swallow. No pill to swallow. No water needed.
- Iron: 19 mg in each strip, 106% of the Daily Value. It’s ferric saccharate, not the ferrous sulfate in the standard 65 mg tablet.
- How to take it: one strip a day, any time. Leave a gap from coffee, tea and calcium when you can.
- A tin: 30 strips, each wrapped in its own sachet. One a day, so a tin lasts a month.
More from the label
- Folate: 240 mcg of folic acid, which the label counts as 400 mcg DFE.
- Diet: vegetarian, gluten-free, lactose-free. Sweetened with monk fruit and stevia.
- Testing: the strip has a Certificate of Analysis, and the facility has a WHO-GMP attestation.
Two people who took it:
Facebook comment on a CAVAÉ ad, August 2026“I did not experience any constipation like when you take iron pills. Absolutely zero stomach issues.”
CAVAÉ buyer survey, July 2026 (part of a longer answer)“it tastes good and doesn't upset my stomach like other iron supplements”
We haven’t run a stomach trial on this strip. So try it on your own stomach. If it doesn’t sit right, the 60-day guarantee covers it.
See the price ↓In a two-year NIH-funded trial, blood donors who finished gained an average of about 18 ferritin points on 19 mg tablets. On double the dose: about 17.
The trial is called STRIDE. Most of the donors started with ferritin under 26: three in four of the women and about half of the men.
After each blood donation, donors took one tablet a day for 60 days: 19 mg, 38 mg, or no iron. Nobody knew which they had. Two years in, the researchers couldn’t tell the 19 mg group from the 38 mg group on estimated body iron.
CAVAÉ buyer survey, August 2026“Tired of my number never moving in years despite being rare when I miss my iron”
If 65 mg didn’t move your number, will 19? You’ve got three things to go on. The reports in Reason 1. This trial, where 19 mg kept pace with double the dose. And 60 days to check it on your own blood work. Nobody can promise you a number. So if it isn’t right for you, you get your money back.
What this trial can’t tell you: it used tablets of a different iron, not a strip, and nobody took 65 mg.
More on the trial’s limits
The people in it were blood donors, about half of them men. And 30 to 40% of donors on iron still had ferritin under 26 at the end. The authors say it can’t be applied directly to iron deficiency anemia.
The standard treatment for iron deficiency has been 100 to 200 mg of iron a day, split into two or three doses. More iron per day can raise hemoglobin faster, and smaller doses can take longer to refill your iron stores.
For women, a lab report can print “normal” from 16. The 2026 hematology guideline calls 30 or lower iron deficiency.
If your report prints “normal” and your ferritin is 30 or lower, the 2026 hematology guideline calls that iron deficiency.
This strip fits you if pills turned your stomach or you quit them, and you want a daily iron you’ll keep taking.
It also fits you if you took your pills, your number sat still, and you want to run your own 60-day test.
See your doctor first if your ferritin is in single digits, if your doctor wants you on an infusion, or if a doctor found a cause, or nobody has looked for one yet, like blood loss or a gut condition such as celiac disease. If a doctor set your dose, ask your doctor before you switch. Under 18? Skip it.
You don’t have to take our word for it. Test it on your own blood work. If it isn’t right, get your money back inside 60 days.
The 60-day guarantee, in plain terms. If the strips aren’t right for you, for any reason, you get a full refund of the product price. No blood test or lab result needed. You’re covered even if you’ve used every strip.
To claim it, email support@shopcavae.com with your order number within 60 days of your order date.
How the refund works
If some strips are left, we may ask you to send them back at your own postage. We review requests within 5 business days. Once yours is confirmed, the refund goes back to your original payment method within 7 to 10 business days. After day 60, we review requests case by case.
Not every number moves. This one started at 7:
Facebook comment on a CAVAÉ ad, July 2026“Interesting the results you and your friend had. My ferritin was at 7 at the end of 2025 and after 2 ish months of taking this, my current blood work showed zero change. 🤔😩”
If that’s you, you get your money back.
60 days can be long enough for a first look. That 25 to 45 in Reason 1 was at the 30-day mark. A final number takes longer, and refilling iron stores can take months. The 22 to 58 in our ads came from two tests about 13 weeks apart, as she reported it.
60 days can show you
- Whether you take it most days.
- How your stomach handles it.
- Whether your ferritin has started to move.
Test before your first strip if you can. Test again around day 30. If you bought three tins, you can wait until week six. That’s about day 50 from your order, so you still have time to decide. The blood tests are optional, and you pay for them.
Make your call before day 60. If your number moved and your stomach’s fine, keep going. If not, or if you just want out, email us and get your money back.
It costs $2.00 a day to find out if your ferritin moves, or $1.50 with three tins.
Yes, it costs more than drugstore iron. You’re paying for an iron that’s built to be easy to take. Inside 60 days you can see how your stomach handles it and whether your ferritin starts to move. Your money’s safe the whole time, even if you’ve used every strip.
These are one-time prices. Nothing renews unless you pick a plan on the next page. Plans start at $44.99 for one tin a month, and you can skip or cancel.
Start my 60-day test →Opens the product page. Pick 1, 3 or 6 tins there. Money back inside 60 days if it isn’t for you.
One buyer called the price high:
CAVAÉ buyer survey, September 2026 (part of a longer answer)“The price is high and I didn't want to spend that amount if it doesn't actually work. However, I saw you have the money back guarantee if my number does not change.”
The guarantee covers more than that: any reason, and no lab results required.
Who’s behind this page? CAVAÉ wrote it, and we sell the strip, only at shopcavae.com. A listing anywhere else, Amazon included, isn’t ours.
Quick questions.
Is this a subscription?
Only if you pick one. The next page opens on these one-time prices. It also offers plans, from $44.99 for one tin every 30 days down to $29.99 a tin for six every 180 days. We email you 7 days before each plan charge, and you can skip, pause or cancel. The 60-day guarantee covers plan orders too.
Is it folate or folic acid? I have the MTHFR gene.
It’s folic acid: 240 mcg, which the label counts as 400 mcg DFE of folate. It isn’t methylfolate. The CDC says people with an MTHFR variant can process all types of folate, including folic acid.
What does it taste like?
Raspberry, sweetened with monk fruit and stevia. People split on the iron taste. One Facebook commenter wrote “it tastes awful!” (May 2026). The buyer quoted in Reason 3 wrote that it tastes good. The guarantee covers taste too.
Pregnant, nursing, on medication or under 18?
It’s for adults 18 and over, and it isn’t a prenatal. If you’re pregnant, nursing, on medication, managing a condition or getting infusions, ask your doctor before your first strip. Keep the tin away from children.
Let your own ferritin make the call, and decide before day 60.
CAVAÉ buyer survey, August 2026“I hope I get my energy back so I can take other healthy steps to regaining my life and energy”
That’s what this is for. You try it, and you decide.
Get a baseline. Take one strip a day. Test again. With one tin, test at day 30. With three, test at week six. Keep going if it’s working. If it isn’t, or you just want out, email us before day 60 and get your money back.
Start my 60-day test →Opens the product page · From $59.99, one-time · Free shipping on all orders
Sources
- Bialkowski W, et al. American Journal of Hematology, 2017. The two-year donor trial. Link
- Mast AE, et al. Transfusion, 2016. Main results of the same trial. Link
- Tolkien Z, et al. PLoS One, 2015. Link
- NIH Office of Dietary Supplements. Iron fact sheet, 2025. Link
- DailyMed. Ferrous sulfate tablets 325 mg (5 gr), label. Link
- Kaundal R, et al. Annals of Hematology, 2020. Link
- BC Guidelines. Iron Deficiency, 2019. Link
- CDC. MTHFR Gene Variant and Folic Acid Facts, 2026. Link
- American Society of Hematology. Press release on its 2026 iron deficiency guideline, September 16, 2026. Link. LabCorp ferritin range, updated October 5, 2026. Link
This page is an advertisement for cavaé melt, written by the company that sells it. CAVAÉ is a brand of Iron Hill Holdings LLC, 422 S Main St, Unit #2086, Lombard, IL 60148. The 22 → 58 result is one customer’s, as she reported it to CAVAÉ. “About 7 in 10” is 65 of the 90 buyers who answered that question in our post-purchase survey. Customer quotes are individual public comments and buyer survey answers, copied word for word. Some are parts of longer posts. Results and timing vary.
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. If you are pregnant, nursing, or under medical care, talk to your doctor before use.