Evidence supporting the use of: Flower Pollen
For the health condition: Benign Prostate Hyperplasia

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Synopsis

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

Flower pollen extract (often from rye, timothy, or corn pollen) has been used in the management of benign prostatic hyperplasia (BPH) for several decades, particularly in Europe and Asia. There is some scientific evidence supporting its effectiveness in improving urinary symptoms associated with BPH, such as nocturia, frequency, and residual urine volume. Several randomized, placebo-controlled trials and meta-analyses have evaluated flower pollen extracts (notably Cernilton®), finding modest but statistically significant improvements in overall symptom scores and quality of life. The mechanism is not fully understood but may involve anti-inflammatory activity, smooth muscle relaxation, and inhibition of prostate cell proliferation.

A 2000 Cochrane review concluded that pollen extracts appear to be well-tolerated and can improve subjective symptoms compared to placebo. More recent systematic reviews (e.g., Wagenlehner et al., 2009) also suggest benefit, but highlight the generally small sample sizes, short study durations, and variable study quality. Despite these limitations, the evidence base is stronger than for many other herbal remedies used for BPH. Flower pollen extract is thus used in clinical practice in some countries as an adjunct or alternative to conventional pharmacotherapy, especially for mild-to-moderate symptoms. However, its efficacy is less robust and predictable than standard medications such as alpha-blockers or 5-alpha-reductase inhibitors.

Overall, while not considered first-line therapy, flower pollen extract does have some scientific validation for BPH, with moderate-quality evidence supporting its symptom-relieving effects.

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