Ingredient 6 of 11
Bilberry Leaf Powder in PureLung: Sixth of 11, and Why Leaf Is Not Fruit
Bilberry leaf powder is the sixth name in the PureLung blend, so it can weigh at most 100 mg per serving of 2 capsules, with no amount printed. The label says leaf, not the fruit that is better known. Evidence for bilberry in general is thin, and we found no lung evidence for the leaf. People with diabetes or on blood thinners should ask a pharmacist.
Written by the PureLung label deskUpdated
What it is01
What is bilberry leaf powder?
Bilberry is a small blue berry of the blueberry family that grows wild in parts of Europe. The berry is sold for eye health, and the leaf is used in herbal teas. The label says "Bilberry Leaf Powder", so it is the leaf, ground, with no extract or percent.
Most sources we read are about the fruit. The Memorial Sloan Kettering page on bilberry fruit says more clinical trials are needed for any effect and notes mainly lab and small clinical findings (MSK, Bilberry Fruit). That page is about the fruit, so we use it only for the general point that evidence is limited, and we do not apply any fruit claim to the leaf.
On the label02
What does the PureLung label show for it?
It is the sixth of eleven names in the blend, with no amount printed. By weight order it weighs at most 600 divided by 6, which is 100 mg (FDA, Q&A on Dietary Supplements).
| Name on the label | Bilberry Leaf Powder |
|---|---|
| What it is | plant powder |
| Place in the list | 6 of 11 in the Proprietary Blend (heaviest name first) |
| Amount | inside the 600 mg blend; no separate amount printed |
| Most it could weigh | 100 mg per serving of 2 capsules |
| Usually sold for | Berry is sold for eye health; leaf is used in herbal teas |
| Lung benefit in a trial of this capsule | None. No study of PureLung found |
| Main caution | Evidence for the leaf is thin; people with diabetes or on blood thinners should ask a pharmacist. |
A leaf powder is the whole ground leaf, so it carries its natural mix of compounds in unknown strength. That differs from a standardized extract, which has a measured share of one or more compounds. The label offers no percent for it.
Lung evidence03
Is there evidence for the leaf and the lungs?
No. We found no human trial of bilberry leaf for lung function, asthma or COPD. The sources on the berry speak to eyes and blood vessels at most, and say the evidence is limited (MSK, Bilberry Fruit).
If a seller says bilberry supports the lungs, ask for the trial. A lab study or a traditional use is a reason to study a plant, not a reason to believe a claim. The FTC says health claims need solid human trials (FTC, Health Products Compliance Guidance).
Safety04
What are the cautions?
Evidence for the leaf is thin, so cautions are cautious. People with diabetes should ask a pharmacist, since plants in this group have been studied for blood sugar. People on blood thinners should ask too, since some bilberry compounds may affect clotting in lab work.
Allergy is possible with any plant. If you are allergic to blueberries or related plants, ask before use. Stop and call a clinician if you notice a rash, itching, swelling or stomach upset. Pregnant and nursing women should not start without a doctor.
| Item | Fact |
|---|---|
| Position on the label | 6 of 11 |
| Most it could weigh | 100 mg |
| Printed amount | None |
| Plant part | Leaf, not fruit |
| Lung evidence | None found |
| Main caution | Diabetes and blood thinner questions |
Leaf or fruit05
Why does the plant part matter?
Different parts of a plant hold different compounds. The fruit is rich in pigments called anthocyanins. The leaf has other compounds and fewer of those pigments. A study on the fruit says little about the leaf, and a claim built on the fruit does not carry over.
When a label says "leaf", read it as leaf. We keep that line clear on this site so that a fruit study cannot be borrowed to dress up a leaf powder. If a seller shifts between the two, ask which one is in the capsule.
Questions06
What should you ask?
Ask the order desk for the plant part, the country of origin and whether the lot is tested for pesticides. Ask a pharmacist about diabetes and blood thinner medicines. And keep your medicines.
PureLung: 60 capsules a bottlePacks of 1, 3 or 6 bottles · live price shown at checkout · guarantee as printed on the live listing
See packsTraditional use07
How is bilberry leaf traditionally used?
In herbal teas and folk practice, mostly. Traditional use is a reason to study a plant, and it is not proof that a plant works. Many plants with a long tradition have been tested and found to have little effect, and some have been found to cause harm. We mention tradition so that you can see where the plant comes from, not to suggest a benefit for the lungs.
Powders08
What should you know about plant powders in general?
A plain plant powder carries more variation than a standardized extract. The same plant can differ in compound levels by season, soil and handling. Powders can also hold more dust, mold or heavy metals if not tested. That is why a CoA that covers microbes and metals matters more for powders, and why we ask the seller for one on the batch verify page.
Origin09
Where does it grow, and does the origin matter?
Bilberry grows wild in cool, damp parts of northern Europe and in some mountain regions. The origin can affect quality, since wild plants can pick up what is in the soil. The label prints no origin for the leaf and no facility line. If this matters to you, ask the order desk where the leaf comes from and whether the lot is tested for heavy metals, and note the reply. A clear answer is a good sign, and a vague one is a reason to wait.
The big picture10
How does this name sit in the whole formula?
Alongside salt, cinnamon, a choline compound, bacopa and two eye pigments, bilberry leaf adds one more plant to a long list. A longer list means more cautions to check, and less chance that any single name is present in an amount that matters. That is a general point about blends, not a finding about this capsule. Read the blend page for how to weigh it.
FAQ11
PureLung questions people ask
What is bilberry leaf powder doing in PureLung?
The label does not say. No lung role was found.
How much bilberry is in PureLung?
Not printed. It could weigh at most 100 mg per serving.
Is bilberry leaf the same as the fruit?
No. They hold different compounds.
Does bilberry help the lungs?
We found no evidence that it does.
Is bilberry safe with diabetes medicine?
Ask a pharmacist first.
Is bilberry safe with blood thinners?
Ask a pharmacist first.
Is it safe in pregnancy?
Not tested well. Ask a doctor first.
Who wrote this12
Written and reviewed by
Pages built from the label images, seller information and linked NIH, FDA, CDC, FTC 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. authorized retailer for PureLung. 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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