Ashwagandha

Plants used as foods, spices, teas, or traditional supplements. Botanical effects vary by plant part, extract, dose, and medication context.

Page last reviewed: 2026-07-23 - next review due: 2027-01-23

Ayurvedaadaptogen

High-Caution Safety Flags

Use extra caution before concentrated supplement use, especially with medications, pregnancy, liver/kidney disease, heart conditions, or complex medical history.

pregnancy/breastfeeding, thyroid disease, autoimmune disease, liver disease, sedatives

Source Coverage

Included: US reference

Review gap: Canadian reference

Add or verify Health Canada context where an official Canadian reference exists.

Review gap: EU reference

Add or verify EFSA or EU health-claim context where an official EU reference exists.

Included: Clinical / safety source

Function

Adaptogenic herb studied for stress, sleep, and perceived well-being outcomes.

Natural Sources

Ashwagandha root.

Food vs Supplement Context

Natural sources describe where this item appears in foods, culinary ingredients, or traditional preparations. Concentrated supplements can differ by dose, extract type, preparation, standardization, and medication context, so they should be evaluated separately.

Testing & Monitoring Context

No routine lab test establishes a required daily need for most foods and bioactives; monitoring is usually based on the intended outcome, dose, medical history, and adverse effects.
Liver-safety context: liver enzymes and symptoms such as dark urine, jaundice, severe fatigue, or abdominal pain need medical review.
Sedation context: watch for next-day drowsiness, impaired driving, alcohol overlap, or sedating medication combinations.

Suggested Guidelines When Purchasing

What to look for: For ashwagandha, compare root vs root-and-leaf extract, withanolide standardization, extract ratio, and the studied extract used for the claim.

Use caution or avoid: Avoid casual use when these flags apply: pregnancy/breastfeeding, thyroid disease, autoimmune disease, liver disease, sedatives.

Prefer ordinary food sources first when they provide the intended compound in a practical way.
For supplements, require clear labeling of active ingredient, dose per serving, serving size, and other ingredients.
Prefer products with third-party testing or transparent contaminant testing, especially for concentrated extracts, algae, mushrooms, minerals, and sports products.
Do not let marketing claims override the evidence, safety flags, source coverage, or dose context on this page.
Long-term safety, liver-safety reports, thyroid context, pregnancy, autoimmune disease, and sedative combinations should be reviewed before concentrated extract use.

Intake Guidance

No official DRI

No official RDA, AI, or RDI has been established for this bioactive as a required daily intake.

Evidence Summary

Sleep, stress, and anxiety measures

Promising

Systematic reviews suggest ashwagandha extracts may improve sleep and stress/anxiety measures in adults, but long-term safety data and extract comparability remain limited.

Dose context: Trials use specific extracts and doses; products should not be treated as interchangeable.

Caution: Avoid or use clinician guidance in pregnancy, thyroid disease, autoimmune disease, liver concerns, sedative use, and complex medication contexts.

Studies/sources: Effect of Ashwagandha Extract on Sleep: A Systematic Review and Meta-Analysis (2026-07-23), Ashwagandha Supplementation for Anxiety and Stress: Systematic Review and Meta-Analysis (2026-07-23), Herbs at a Glance (2026-07-23)

Evidence Legend

Established use: Supported by official guidance, regulatory claim context, strong consensus, or repeated human evidence for a specific use.

Promising: Human studies or reviews suggest benefit for specific outcomes, but evidence is not broad enough to treat as settled general guidance.

Emerging: Early human, mechanistic, or mixed evidence; worth tracking, but not strong enough for confident user-facing claims.

Traditional use: Historically or traditionally used, but modern clinical evidence may be limited, mixed, or product-specific.

Category example: Included to describe a supplement or food category, not because a strong health claim is attached yet.

Note: Use caution in pregnancy, thyroid disease, autoimmune disease, liver concerns, or with sedating medicines.

Research Links

Use this as a research discovery link. Search results are live and may change, so curated sources on this page remain the fixed references for app content.