The short answer · Urinary frequency
Take beta-sitosterol for urinary frequency. This is the one to buy.

Source Naturals, Mega Strength Beta Sitosterol, 240 Tablets
4.6· 4,539 ratings· $0.10/serving
Beta-Sitosterol 375 mg — higher than the studied 60-200 mg window
Of 647 products scored for Urinary frequency, Source Naturals, Mega Strength Beta Sitosterol, 240 Tablets ranks #1 with a DoseRank score of 87. Beta-Sitosterol is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Beta-Sitosterol — not Pygeum?”Evidence Strong evidence
Beta-Sitosterol is the strongest evidence signal for this outcome.
- Beta-SitosterolThe pick
Strong evidence · 375 mg
Plant sterol from vegetable oils and nuts; structurally like cholesterol, it blocks dietary cholesterol absorption and is also used for prostate support.
- Pygeum
Strong evidence · 500 mg
Bark extract from an African plum tree; used to relieve lower urinary tract symptoms associated with benign prostatic hyperplasia, particularly nighttime urination.
The dose“Is the dose actually effective?”Dose fit 92
Beta-Sitosterol at 375 mg is higher than the studied 60-200 mg window.
Beta-Sitosterol
Studied window 60-200 mg · this pick 375 mg
The ranking“Why should I trust this pick?”Trust 89
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 647 products scored
- Never paid placement
- Evidence level: Strong · 92
- 144 brands
- 6 ingredients
The price“Can I do better than $0.10 a serving?”Value 85
$0.10 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.10 per serving.
- 10Vitamatic, Beta Sitosterol, 400 mg, 180 CapsulesScore 83 · $0.10/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.10 a serving.Source Naturals, Mega Strength Beta Sitosterol, 240 Tablets — in stock at a tracked retailer.
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Source Naturals, Mega Strength Beta Sitosterol, 240 Tablets ranks #1 for Urinary frequency with a DoseRank score of 87. The score blends clinical strength, evidence, dose fit, trust signals and value across 647 products scored for this outcome.
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