Dietary supplement use for eye health in adults: knowledge, motivations, and consumption patterns in a nationwide sample of adults in Poland, 2026.

Our assessment

This study surveyed 1,090 adults in Poland between March 13–17, 2026, using a cross-sectional questionnaire design. Researchers asked participants about their knowledge of diet and eye health, and their use of dietary supplements for vision support. The study was conducted over just five days, which is a short window, but the sample size of over 1,000 people is substantial. What this means for you: the findings reflect what a large group of adults reported at one point in time, not a long-term experiment.

How it works

The study found that many adults are using dietary supplements for eye health, but their knowledge about the role of nutrients in vision is inconsistent. For example, while some nutrients like lutein and zeaxanthin are often discussed for eye support, the evidence for many supplements remains unclear. What this means for you: just because a supplement is marketed for eyesight doesn't mean it has strong scientific backing. Understanding your specific needs — such as whether you have a deficiency — is more important than following general trends.

Safety profile

Data not available. The study did not provide any adverse event reports or side effect data for the supplements discussed. Without this information, it is impossible to assess the safety profile of the specific products used by participants. What this means for you: always check with a healthcare professional before starting any supplement, as even natural products can have risks.

Our recommendation

Based on this study, the key takeaway is that knowledge gaps exist among adults regarding diet and eye health. What this means for you: focus on getting nutrients from whole foods first, such as leafy greens for lutein and fatty fish for omega-3s. If you are considering a supplement for vision, talk to your doctor about your individual risk factors, such as age or family history of eye disease. Do not rely on marketing claims alone.