Enhanced eye health and vision support
Improves visual acuity, night vision, and eye health
Bilberry
Eye health berry rich in anthocyanins that supports vision, circulation, blood sugar control, and antioxidant protection
Scientific nameVaccinium myrtillus
FormulaComplex anthocyanins and flavonoids
Molecular weightVariable bioactive compounds g/mol
CASVarious natural compounds
10
absorption score
9
safety / 10
35
USD per month
5
documented interactions
Check it against something
Bilberry with:
- Amylase
- Ashwagandha
- Avocado Oil
- BCAA (Branched-Chain Amino Acids)
- Beetroot Powder
- Beta-Alanine
- Bifidobacterium lactis
- Bifidobacterium longum
- Bovine Collagen
- Caffeine
- Calcium
- Calcium Bone Formula
- Calcium Carbonate
- Casein Protein
- Chicken Collagen
- Choline (Bitartrate)
- Chondroitin Sulfate
- Coconut Oil
- Collagen Peptides
- Comprehensive Immune Support Complex
- Comprehensive Multivitamin-Mineral Complex
- Creatine HCL
- Creatine Monohydrate
- D-Mannose
- DHA
- Electrolyte Blend
- EPA
- Fish Oil (EPA/DHA)
- Folate (5-MTHF)
- Ginger
- Iron Fumarate
- Iron Sulfate
- Joint Mobility Formula
- Keratin
- Krill Oil
- L-Carnitine
- L-Citrulline
- Lactase
- Lactobacillus acidophilus
- Lactobacillus rhamnosus
- Lipase
- Lutein & Zeaxanthin
- Magnesium Citrate
- Magnesium Glycinate
- Magnesium Oxide
- Marine Collagen
- Melatonin
- Modafinil
- Olive Oil Extract
- Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula
- Papain
- Protease
- Saccharomyces boulardii
- Turmeric
- Vitamin B12 (Cyanocobalamin)
- Vitamin B12 (Methylcobalamin)
- Vitamin C (Ascorbic Acid)
- Vitamin C (Sodium Ascorbate)
- Vitamin D3
- Whey Protein
- Zinc Gluconate
Nothing found
78
out of 100
Works better together
Compatible. Timing differs, so follow each supplement's own window.
What it does
mechanism and evidence for each claimImproved night vision and visual adaptation
Enhances ability to see in low light conditions
Diabetic eye protection
Protects against diabetic retinopathy and eye complications
Enhanced circulation and vascular health
Improves blood flow and strengthens capillaries
Blood sugar regulation support
May help maintain healthy blood glucose levels
Others take these for the same thing
Same goal, different mechanism — check any of them against this one
Turmeric
Anti-inflammatory & antioxidant
300-1000mg
A
3%
Glutathione
Master antioxidant & detox support
250-750mg
B
20%
Astaxanthin
Superior antioxidant & skin protection
4-12mg
B
20%
SAM-e
Mood support & liver health
400-800mg
A
70%
Plant Collagen
Vegan collagen support & antioxidants
2-5g
C
70%
Quercetin
Immune support & allergy relief
500-1000mg
B
5%
Every pair we checked
12 combinations scored by the engine
Bilberry + Caffeine
No documented interaction either way
No known interaction
70
Bilberry + Creatine Monohydrate
No documented interaction either way
No known interaction
70
Bilberry + Calcium Carbonate
No documented interaction either way
No known interaction
70
Bilberry + Whey Protein
No documented interaction either way
No known interaction
70
Bilberry + Lactase
No documented interaction either way
No known interaction
70
Bilberry + Bovine Collagen
No documented interaction either way
No known interaction
70
Bilberry + DHA
No documented interaction either way
No known interaction
70
Bilberry + Turmeric
No documented interaction either way
No known interaction
70
Bilberry + Fish Oil (EPA/DHA)
No documented interaction either way
No known interaction
70
Bilberry + Ginkgo Biloba
Enhanced circulation and eye blood flow
Works better together
75
Bilberry + Lutein & Zeaxanthin
Enhanced eye health and macular protection
Works better together
78
Bilberry + Vitamin D3
Enhanced antioxidant protection for eyes
Works better together
78
Dosage
Daily80-320mg
Eye health maintenance80-160mg daily
Night vision improvement80-160mg daily
Diabetic eye protection160-320mg daily
Circulation support80-160mg daily
Before you take it
VeganYes
When to expect it
First Effects2-4 weeks for initial eye and circulation benefits
Peak Benefits8-12 weeks for sustained vision and vascular benefits
Deficiency DevelopmentReturn to baseline eye and circulation function
Toxicity OnsetVery rare, mainly with extremely high doses
How to measure it
MarkerBlood glucose, HbA1c, or eye health assessments
OptimalStable glucose levels and improved eye function tests
Deficient belowNot applicable for supplement
FrequencyEye exams annually, glucose monitoring if diabetic
What people actually reported to the FDA
CAERS, 30 reports naming it as the suspectMost reported effects
Named as the suspect
30 reports
of 52 that mention it at all
Serious outcome
80%
hospitalisation, emergency room or worse
Hospitalization15
Other Serious or Important Medical Event14
Visited Emergency Room8
Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →
What actually reaches you
The label counts the carrier, your body does not
Absorption
Very low 10 of 100 · little of the dose reaches the bloodstream
Delivered daily
20 mg
Cost per 100 mg delivered
$5.83 comparative — uses the absorption score, not a measured percentage
Works better with
+
Lutein Zeaxanthin
Enhanced eye health and macular protection
Complementary eye-protecting compounds for comprehensive vision support · level B
+
Vitamin C
Enhanced antioxidant protection for eyes
Both provide antioxidant protection for ocular tissues · level B
+
Ginkgo Biloba
Enhanced circulation and eye blood flow
Both improve circulation, particularly to eyes and extremities · level CWhat not to take with Bilberry
!
High Sugar Diet
High sugar intake may overwhelm blood sugar and eye benefits
Excess glucose can damage retinal blood vessels · moderate significance
!
Smoking
Smoking increases oxidative stress in eyes
Tobacco smoke overwhelms antioxidant protection · major significanceMedication interactions
Discuss these with a pharmacist before combiningMay enhance blood sugar lowering effects
What to do: Monitor blood glucose
May enhance anticoagulant effects
What to do: Monitor bleeding parameters
May have mild blood pressure lowering effects
What to do: Monitor blood pressure
Available forms
Standardized Anthocyanin Extract (25% anthocyanins): Standardized potency, Research backed, Consistent effects, High quality
Whole Berry Extract: Complete spectrum, Natural form, Multiple compounds, Traditional use
Fresh Bilberries: Whole food, Complete nutrients, Very affordable, Natural form
Freeze-Dried Berry Powder: Natural form, Complete spectrum, Good preservation, Versatile use
Food sources
Fresh bilberries
1/2 cup provides moderate benefits · 60
Bilberry jam/preserves
Lower potency due to processing and sugar · 40
Bilberry extract supplements
80-320mg per capsule · 75-80
Frozen bilberries
Good preservation of nutrients · 55
Too little
- Not essential - but symptoms addressed by bilberry:
- Poor night vision and visual adaptation
- Eye strain and visual fatigue
- Diabetic eye complications and retinopathy
- Poor circulation and weak capillaries
- Blood sugar dysregulation
- Increased oxidative stress in eyes
Too much
- Excellent safety profile:
- Mild blood sugar lowering with diabetes medications
- Possible increased bleeding with blood thinners
- Rare digestive upset with high doses
- Generally extremely well tolerated
Who benefits most
eye-health-vision-support
Excellent for supporting overall eye health and vision
80-160mg daily
night-vision-problems
Specifically effective for improving night vision
80-160mg daily
diabetic-eye-complications
Protects against diabetic retinopathy and eye damage
160-320mg daily
circulation-vascular-problems
Improves microcirculation and capillary health
80-160mg daily
computer-eye-strain
May help reduce digital eye strain and fatigue
80-160mg dailyWhere to buy it
Look for Bilberry at 80-320mg per serving. The form that matters here is Standardized Anthocyanin Extract (25% anthocyanins).
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What else affects it
Beyond other supplements
!
High sugar diet
High sugar intake may overwhelm blood sugar and eye benefits
Excess glucose can damage retinal blood vessels
!
Smoking
Smoking increases oxidative stress in eyes
Tobacco smoke overwhelms antioxidant protectionHow it works
- Anthocyanins support rhodopsin regeneration for improved night vision
- Antioxidants protect retinal cells from oxidative damage
- Improves microcirculation in retinal and peripheral blood vessels
- Strengthens capillary walls and reduces vascular permeability
- May improve glucose metabolism and insulin sensitivity
- Reduces inflammation in eye and vascular tissues
Key findings
what the evidence supports- Good evidence for eye health and night vision improvement
- Promising for diabetic eye protection and circulation
- Generally safe with excellent tolerability
- Standardized anthocyanin extracts show most consistent benefits
Sources: NIH Examine.com · data reviewed 2026-08-02
Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →
Common questions
What are the benefits of Bilberry?
Documented effects: Enhanced eye health and vision support; Improved night vision and visual adaptation; Diabetic eye protection; Enhanced circulation and vascular health. Improves visual acuity, night vision, and eye health
How much Bilberry should you take per day?
The common daily range is 80-320mg. By goal — eye health maintenance: 80-160mg daily; night vision improvement: 80-160mg daily; diabetic eye protection: 160-320mg daily; circulation support: 80-160mg daily.
When is the best time to take Bilberry?
With meals. First effects are typically reported within 2-4 weeks for initial eye and circulation benefits.
What are the side effects of Bilberry?
At excessive doses: Excellent safety profile:, Mild blood sugar lowering with diabetes medications, Possible increased bleeding with blood thinners, Rare digestive upset with high doses, Generally extremely well tolerated. Safety rating at normal doses is 9 out of 10.
What should you not take with Bilberry?
Separate it from High Sugar Diet, Smoking by two to four hours. High sugar intake may overwhelm blood sugar and eye benefits
Does Bilberry interact with medications?
Documented interactions with diabetes-medications, blood-thinners, blood-pressure-medications. Discuss these with a pharmacist before combining.
How do you know if you need Bilberry?
The marker is Blood glucose, HbA1c, or eye health assessments, optimal range Stable glucose levels and improved eye function tests. Common deficiency signs: Not essential - but symptoms addressed by bilberry:, Poor night vision and visual adaptation, Eye strain and visual fatigue, Diabetic eye complications and retinopathy.