A 2019 study on eye health supplements was retracted by the journal Nutrients, meaning its findings are no longer considered scientifically valid. According to Gram Research analysis, retracted studies should not be used to guide health decisions. The supplement tested contained forskolin, homotaurine, spearmint extract, and B vitamins, but the retraction indicates serious problems with the research that made the results unreliable.
A 2019 research article published in the journal Nutrients has been officially retracted by the publisher. The study examined whether a dietary supplement containing forskolin, homotaurine, spearmint extract, and B vitamins could protect eye nerves from injury in mice. Because the article has been retracted, the findings are no longer considered reliable scientific evidence. Retraction means the journal determined there were serious problems with the research that made the results untrustworthy. This is an important reminder to check whether health studies are current and valid before making decisions based on their findings.
Key Statistics
A 2019 animal study published in Nutrients examining a supplement for eye nerve protection was officially retracted by the journal, indicating the research had fundamental problems that made its conclusions untrustworthy.
The retracted study tested a supplement containing four ingredients—forskolin, homotaurine, spearmint extract, and B vitamins—in mice, but retraction means the findings cannot be relied upon for health decisions.
The Quick Take
- What they studied: Whether a supplement mix could protect mouse eye nerves from damage
- Who participated: Laboratory mice (specific numbers not available in retracted article)
- Key finding: The article has been retracted and is no longer considered valid scientific evidence
- What it means for you: Do not rely on this study’s findings for health decisions. Always verify that research hasn’t been retracted before using it to guide supplement or treatment choices.
The Research Details
This was an animal study conducted in mice, not humans. The researchers tested a dietary supplement containing four ingredients: forskolin (from a plant), homotaurine (a compound similar to an amino acid), spearmint extract, and B vitamins. They examined whether this supplement could protect the optic nerve—the nerve that carries vision signals from your eye to your brain—when it was injured. The study was published in 2019 in the journal Nutrients, which focuses on nutrition science research.
Animal studies are often early steps in research before testing in humans. However, this study’s importance is now limited because it has been retracted. When a journal retracts an article, it means the editors found serious problems that make the results unreliable.
This study has been officially retracted by the journal Nutrients, meaning it should not be used as evidence for any health claims. The specific reasons for retraction were not detailed in the retraction notice provided. Retraction is a serious action that indicates fundamental problems with the research quality, methodology, or integrity.
What the Results Show
Because this article has been retracted, its original findings are no longer considered valid or reliable. The journal’s decision to retract means there were significant issues with how the research was conducted or reported. Readers should not cite or rely on any of the study’s conclusions about the supplement’s protective effects on eye nerves.
No secondary findings from this retracted study should be considered trustworthy or used to inform health decisions.
This retracted study cannot be meaningfully compared to other research since it is no longer considered valid scientific evidence. Anyone researching eye health supplements should look for studies that have not been retracted and have been replicated by other researchers.
The most critical limitation is that the entire study has been retracted. Additionally, this was animal research in mice, which doesn’t always translate to how supplements work in humans. The specific reasons for retraction suggest there may have been problems with study design, data analysis, or reporting that weren’t initially apparent.
The Bottom Line
Do not use this retracted study as a basis for taking any supplements or making health decisions. If you’re interested in eye health supplements, consult your doctor and look for evidence from non-retracted, peer-reviewed studies that have been replicated by multiple research groups.
Anyone considering eye health supplements should be aware of this retraction. People with eye conditions or nerve damage should especially be cautious about relying on unproven supplements and should work with their eye doctor instead.
Not applicable—this study’s findings cannot be trusted and should not guide any health decisions.
Frequently Asked Questions
What does it mean when a scientific study is retracted?
Retraction means the journal found serious problems with the research—such as flawed methods, incorrect data analysis, or integrity issues—that make the results unreliable. Retracted studies should not be used to guide health decisions or support health claims.
Should I take the supplement from this retracted eye health study?
No. Because the study was retracted, you cannot trust its findings about the supplement’s safety or effectiveness. Talk to your eye doctor before taking any supplement, and ask them to recommend options backed by current, non-retracted research.
Why was this eye supplement study retracted?
The specific reasons for retraction were not detailed in the notice, but retraction indicates the journal identified fundamental problems with the research quality or integrity that made the findings untrustworthy.
Can I still learn anything useful from a retracted study?
Retracted studies should not be used as evidence for health claims or decisions. However, the retraction itself is useful—it teaches us to verify that research hasn’t been retracted before relying on it for health guidance.
Want to Apply This Research?
- If using a health app, flag any supplement recommendations based on retracted studies and verify claims through your healthcare provider before tracking or implementing them.
- Use your app to set a reminder to verify the retraction status of any health study before making changes to your supplement routine or health habits.
- Maintain a list in your app of supplements you’re considering, and cross-reference each one against current, non-retracted research before starting.
This study has been officially retracted and should not be used as evidence for any health claims or decisions. Retraction indicates serious problems with the research that make its findings unreliable. If you have concerns about eye health or are considering supplements, consult with your eye care professional or physician. Do not start, stop, or change any supplements or treatments based on retracted research. Always verify that health studies have not been retracted and are from reputable sources before using them to guide health decisions.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.