Taking KSM-66 ashwagandha root extract in gummy form for eight weeks does not cause significant adverse effects in most people.

See the scientific wording

KSM-66 ashwagandha root extract administered in gummy form is well tolerated over an eight-week period.

Supporting

Strong

2 studies

Very strong evidence

Randomized trials

2 high-quality studies support this claim.

What the research says

2 studies reviewed

Supporting (2)

Strong

Safety of 8-Week Administration With Ashwagandha (Withania somnifera) Root Extract in Adults With Stress and Anxiety: Findings From a Prospective, Randomized, Multi-Center, Double-Blinded, Placebo-Controlled Study.
Randomized Controlled TrialHuman2026
The study gave 498 people ashwagandha for 8 weeks and found it caused fewer side effects than a placebo, with no serious problems, so it's likely safe to take in gummy form too.
Efficacy and safety of eight-week therapy with Ashwagandha root extract in improvement of sexual health in healthy men: Findings of a prospective, randomized, double-blind, placebo-controlled study
Randomized Controlled TrialHuman2025
The study gave men ashwagandha extract for 8 weeks and found no side effects, so it's safe to take, similar to what the claim says about KSM-66 gummies.

Contradicting (0)

None

No contradicting studies found yet

That doesn't mean it's settled — it just means no study has tested the opposite.

Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.

Scores reflect study quality, not just count.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies

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