Antioxidant

Lutein from Kale

Also known as: lutein, xanthophyll, kale extract

Evidence

A carotenoid phytonutrient naturally concentrated in kale and other leafy greens that accumulates in the macula of the eye and supports retinal health. Lutein acts as a blue-light filter and antioxidant in ocular tissues.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

Eye health and vision
Macular degeneration prevention
Cataracts prevention
Blue light protection
Retinal antioxidant protection

How it works

Accumulates in the macula and lens; filters blue light wavelengths
Quenches reactive oxygen species and lipid peroxyl radicals in retinal tissue
Protects photoreceptor cells from oxidative damage
Reduces risk of age-related macular degeneration (AMD)

Dosage

Typical range: 10-30 mg daily
Timing: With meals containing fat for optimal absorption
With food: Essential: lutein is fat-soluble and requires dietary fat for absorption
Duration: Long-term supplementation (6+ months) needed to accumulate in retinal tissue and demonstrate benefit
Special populations: Men 50+ benefit from supplementation, especially those with family history of AMD or at risk (high-risk AREDS2 criteria)

Forms

Natural lutein extract from kale/marigold· 70/100
Synthetic lutein esters· 70/100
Free lutein· 70/100

Safety

Common side effects

None reported at recommended doses
Mild skin yellowing may occur at very high doses (>30 mg daily) due to carotenoid accumulation

Products containing Lutein from Kale

Top-scoring supplements in our catalog that list Lutein from Kale on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Thorne

Broccoli Seed Extract

Basic Nutrients 2/Day

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Evidence notes

Strong epidemiological evidence and multiple RCTs support lutein's role in AMD prevention and visual function. AREDS2 trial showed benefit with lutein + zeaxanthin supplementation in high-risk populations.

Grade B: Some human trials support key claims; further confirmation needed.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.