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CBD

Herb
CBD
Limited Evidence

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About CBD

CBD (cannabidiol) is widely marketed for sleep but consumer perception massively outstrips RCT evidence. A few small trials suggest anxiolytic effects at moderate doses, which may indirectly improve sleep. The largest case series (72 patients) showed 66% improved sleep scores initially but results fluctuated over time. Regulatory status varies by jurisdiction. No established RDA/UL.

What CBD supports

  • May reduce anxiety, which can indirectly support sleep
  • Limited and inconsistent evidence for direct sleep improvement

How much CBD to take

Clinical studies typically use 25–160 mg of CBD. Wide dose range in studies (25-1500 mg); sleep-specific trials typically used 25-160 mg.

Effective range
25–160 mg

Clinical evidence

Limited clinical evidence. Consumer perception far outpaces evidence; only a few small trials with inconsistent results

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