Rye Grass
Also known as: Rye grass pollen, Cernilton, Lolium perenne, Lolium multiflorum
Overview
Rye grass pollen is a natural supplement derived from various species of rye grass, notably *Lolium multiflorum* and *Lolium perenne*. It is primarily used to address symptoms of benign prostatic hyperplasia (BPH), with potential applications in urological health. The supplement contains bioactive compounds, including alpha-linoleic acid, which may help mitigate inflammation and improve urinary function. Despite its use, research into rye grass pollen is somewhat limited, with few systematic reviews confirming its efficacy. Studies often report modest improvements in urinary symptoms among men suffering from BPH, but the quality and size of studies are variable, indicating a need for further robust research.
Benefits
Rye grass pollen has been shown to provide several benefits, particularly in reducing urinary symptoms associated with BPH. A systematic review found that Cernilton improved self-rated urinary symptoms compared to placebo, with a weighted risk ratio of 2.40 (95% CI: 1.21-4.75) for symptom improvement. The primary population benefiting from this supplement includes men with symptomatic BPH, as the clinical significance remains modest, mainly observed through subjective symptom ratings. Additional in vitro evidence suggests potential anti-inflammatory properties, although these are yet to be thoroughly validated in human studies.
How it works
While the precise mechanism of action of rye grass pollen is not fully understood, it is believed to work through inhibition of the arachidonic acid cascade, which may reduce inflammation within the prostate and improve urinary function. It likely interacts with the urinary and reproductive systems, thereby promoting a less obstructed urinary flow and alleviating symptoms associated with prostate enlargement.
Side effects
Overall, rye grass pollen is generally well-tolerated, with few documented adverse events. Common side effects exceeding a frequency of 5% have not been reported. Minor gastrointestinal disturbances may occur but are not extensively documented, falling under the category of uncommon side effects (1-5%). There are currently no significant rare side effects (<1%) noted in the literature, and no major drug interactions have been established. However, individuals with allergies to grass pollen should exercise caution, as allergic reactions may occur. Special considerations are advised for this population due to the potential for sensitivity.
Dosage
Specific dosing guidelines for rye grass pollen are not well-established. Typically, it is administered in the form of Cernilton, with dosages varying by product; however, optimal ranges and minimum effective doses are not clearly defined. Continuous daily use is recommended to achieve sustained benefits. Given the absence of established upper limits for safe consumption, users should follow manufacturer recommendations while observing any personal sensitivities or reactions.
FAQs
Is rye grass pollen safe to use?
Rye grass pollen is generally considered safe for most individuals but may cause allergic reactions in those sensitive to grass pollen.
How long before I can expect results?
Benefits, particularly for BPH symptoms, may be observed within several weeks to months of continuous use.
Can rye grass pollen cure BPH?
Rye grass pollen is not a cure for BPH; it may help manage symptoms but does not address the underlying condition.
Are there any drug interactions?
Currently, no significant drug interactions with rye grass pollen have been documented.
What is the recommended way to take rye grass pollen?
Rye grass pollen is best taken continuously in capsule or tablet form, as per product guidelines.
Research Sources
- https://pubmed.ncbi.nlm.nih.gov/10792162/ – This systematic review assessed the effectiveness of Cernilton in 444 men with symptomatic BPH over 12-24 weeks, noting significant improvements in urinary symptoms compared to placebo, though limitations in study duration and sample size were acknowledged.
- https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2337258 – This Cochrane systematic review analyzed the efficacy of rye grass pollen for BPH. Despite a lack of extensive data, findings suggest that rye grass pollen is generally well-tolerated and may provide modest symptomatic relief.
- https://pubmed.ncbi.nlm.nih.gov/12723097/ – In vitro studies suggest rye grass pollen might exhibit anti-prostaglandin and anti-leukotriene properties. These findings provide insight into possible mechanisms but lack direct clinical relevance.
Supplements Containing Rye Grass

Green Blend
Flora

From The Earth Greens
The Vitamin Shoppe

From The Earth Greens
The Vitamin Shoppe

Super Greens
NF NutriPlex Formulas

Greens Powder
LuckyHerbs

Green Source Life's Greens
Puritan's Pride

Smoothie Greens
Vital 500 Holistic Health
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