DigestFlow Official Website › Blog › Does Caffeine Affect Calcium, Iron or Blood Sugar?
Does Caffeine Affect Calcium, Iron or Blood Sugar? What DigestFlow’s Sources Say
This site’s sources do not cover caffeine and calcium, coffee and iron absorption, or chlorogenic acid and diabetes, so it cannot answer them. It can give the amounts: 138 mg of caffeine and about 65 mg of chlorogenic acids per capsule. If you have a bone, iron or blood sugar concern, ask your doctor first.
- Caffeine and calcium or bone loss: not published in this site’s sources.
- Coffee and iron absorption: not published in this site’s sources.
- Chlorogenic acid and diabetes: not published. The pooled trials the site cites measured body weight.
- One capsule carries 138 mg of caffeine and about 65 mg of chlorogenic acids.
- DigestFlow is not intended to diagnose, treat, cure or prevent any disease.

Does caffeine leach calcium from your bones?
This is a common search, and it is a fair worry for anyone who watches their bones. It is also a medical question about a nutrient and a disease, and this site is a retail desk for a digestive capsule.
The sources behind this site cover caffeine and the colon, caffeine safety limits and the liver. They do not cover calcium balance or bone health. So the honest answer here is: not published.
That is not a hint in either direction. It means this page has nothing reliable to add, and it would sooner leave the question to a doctor than guess.
Does coffee block iron absorption?
Another common search, and the same position. Nothing in this site’s sources covers coffee and iron, or tea and iron, or caffeine and iron.
The capsule itself contains no iron, calcium or other mineral. The panel lists five actives and the shell. If you have low iron, or you take an iron supplement, how a caffeinated capsule fits is a question for your doctor or pharmacist.
What you can do before that conversation is write down your day. Note when you take the capsule, when you take other supplements, and what you drink. That list is more useful to a clinician than a general worry.

Bring the numbers to your doctor
The label prints every amount, including 138 mg of caffeine. The order page shows today’s price and the guarantee.
See today’s price and guaranteeThis website is a retail desk, the U.S. stocking partner for DigestFlow, not the maker. BuyGoods processes the checkout.
Does chlorogenic acid matter for diabetes?
Searches for chlorogenic acid and diabetes are real, and this page gets asked about them. The answer from this site is again not published.
What it can give is the dose. Green coffee bean extract on the panel is 130 mg at 50% chlorogenic acids, which is about 65 mg per capsule. The pooled trials the site cites used 500 mg of chlorogenic acids a day, and they measured body weight. They were not trials about blood sugar.
| Question | What this site publishes |
|---|---|
| How much chlorogenic acid is in a capsule? | About 65 mg, from 130 mg of extract at 50% |
| What dose did the pooled body-weight trials use? | 500 mg of chlorogenic acids a day |
| Does that tell you anything about blood sugar? | No. Those trials measured body weight |
| Is the product meant to treat diabetes? | No. It is not intended to diagnose, treat, cure or prevent any disease |
| Should you tell your doctor if you have diabetes? | Yes. The label asks anyone with a medical condition to consult a physician first |
The right-hand column is what the site’s pages say. Where they say nothing, the cell says no.
If you manage blood sugar with medicine, do not change anything because of a web page. Ask the person who prescribes it.
How much caffeine is in one DigestFlow capsule?
138 mg of caffeine anhydrous, plus a trace from the green tea extract, which is standardised to under 3 per cent caffeine. The label calls it out on a line of its own: Contains Caffeine.
| Figure | Amount | Source |
|---|---|---|
| One capsule | 138 mg, up to about 142 mg with the tea trace | The label and its percentages |
| Healthy adults, a day | 400 mg | FDA, and EFSA independently |
| A single dose | Up to 200 mg raises no safety concern | EFSA |
| Pregnancy, a day | 200 mg | EFSA, as this site’s pages report it |
| Two capsules | 276 mg | 2 × 138 mg. The label says not to exceed the recommended dose |
These are published safety figures, not a statement about calcium, iron or blood sugar.
One capsule is inside both the 400 mg and the 200 mg figures. A capsule plus a large coffee comes to around 280 mg, which is inside the daily figure but most of it.
What does the DigestFlow label ask you to do?
It says: do not exceed recommended dose. Not for use by individuals under the age of 18 or pregnant or nursing mothers. Consult a physician prior to use especially if you are taking a medication or have a medical condition.
That is the instruction that applies to every question above. If you have a bone condition, an iron problem, diabetes or any medicine, you are in the group the label asks to check first.
The seller also names a specific caffeine issue. Several prescriptions change how quickly caffeine is cleared, and some are affected by it in turn. That is a specific question with a specific answer for your own list.
What can you ask your doctor or pharmacist?
- I take these medicines and supplements. Does 138 mg of caffeine a day matter for any of them?
- I have a bone, iron or blood sugar concern. Does a daily caffeinated capsule change anything for me?
- The capsule has about 65 mg of chlorogenic acids and about 58 mg of EGCG. Do those amounts matter for me?
- Garcinia and green tea extract have liver case reports at much higher intakes. Is that a concern given my history?
- What should I watch for in the first three days, and what would make you want me to stop?
Take the bottle or a photo of the label. It lists every row and the caffeine amount.
What does it cost, and how do you test it fairly?
| Pack | Total | Per bottle | Per day at one a day | Supply |
|---|---|---|---|---|
| Two bottles | $158 | $79 | $2.63 | 60 days |
| Three bottles | $207 | $69 | $2.30 | 90 days |
| Six bottles | $294 | $49 | $1.63 | 180 days |
Pack prices as supplied to this site and read on 19 September 2026. There is no single bottle, and the guarantee is 60 days from the date of purchase.
If your doctor is comfortable, take it in the morning with food. Count your other caffeine in the first week. Write one symptom down each evening, starting a week before the first capsule. Decide at eight weeks, not two.
Where do these facts come from?
The facts above come from the printed label, the distributor’s paperwork and these sources, which this site already cites:
Frequently asked questions
Does caffeine leach calcium from bones?
Not published in this site’s sources, so this site cannot say. Ask your doctor, especially if you have a bone concern.
Does coffee block iron absorption?
Not published here either. The capsule has no iron. If you take an iron supplement, ask your doctor or pharmacist.
Does chlorogenic acid help with diabetes?
Not published. The pooled trials this site cites measured body weight. DigestFlow is not intended to treat any disease.
How much caffeine is in DigestFlow?
138 mg of caffeine anhydrous per capsule, plus a trace from the green tea extract, so up to about 142 mg.
Should I tell my doctor before taking DigestFlow?
Yes, if you take any medicine or have a medical condition. The label asks you to consult a physician first.
Is DigestFlow a treatment for any condition?
No. It is a dietary supplement. It is not FDA approved and is not intended to diagnose, treat, cure or prevent any disease.
Our view
Three good questions, and the same honest answer to each: this site does not publish it. We would rather give you a short page that says so than a long one that guesses.
What we can give is the amounts. 138 mg of caffeine and about 65 mg of chlorogenic acids are printed or worked out from the label, and your doctor can use them.
If your doctor is comfortable and you want to try DigestFlow, the order page shows the price and the 60-day terms.

Ask first, then decide
If your doctor is comfortable with it, the order page shows the current price and the 60-day terms.
See today’s price and guaranteeThis website is a retail desk, the U.S. stocking partner for DigestFlow, not the maker. BuyGoods processes the checkout.
This page is general information, not medical advice. DigestFlow is a dietary supplement. It is not a drug, it is not FDA approved (no supplement is), and it is not intended to diagnose, treat, cure or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Ask your own doctor about your own situation.
Last updated .