Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Pollen—particularly rye pollen extract (Secale cereale)—has been studied for its potential benefits in supporting prostate health, especially in the context of benign prostatic hyperplasia (BPH). Several clinical trials, primarily from Europe and Japan, have evaluated rye grass pollen extracts (commonly marketed as Cernilton or similar preparations) for their effects on urinary symptoms associated with BPH. Results from these studies suggest that pollen extracts may help improve urinary flow and reduce residual urine volume, as well as relieve symptoms such as nocturia and frequency.

The mechanism is not completely understood but is thought to involve anti-inflammatory properties, smooth muscle relaxation, and inhibition of prostate cell proliferation. Meta-analyses and systematic reviews (e.g., Wilt et al., Cochrane Database Syst Rev, 2000) have concluded that pollen extract appears to provide a modest improvement in overall urological symptoms and quality of life compared to placebo, though the quality of evidence is moderate and more large-scale, high-quality studies are needed.

It is important to note that the evidence applies mainly to specific standardized pollen extracts, not to general or unspecified pollen. Although not as firmly established as pharmaceutical interventions, scientific validation exists for pollen extract use in mild-to-moderate BPH, and its use is recognized in some complementary and alternative medicine contexts.

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