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Kava 500 mg

product on market Tablet or Pill Source Naturals Safety: 87/100
87/100

This product is generally safe

  • Kava root extract: 500mg is 2.0× the Tolerable Upper Intake Level (250mg)
  • 33% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Kava root extract is supported by moderate evidence for its potential to reduce anxiety and promote relaxation. Calcium is a well-established mineral essential for bone health and neuromuscular function. Due to the low evidence coverage, the overall clinical support for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Kava root extract: 500mg is 2.0× the Tolerable Upper Intake Level (250mg)

Label

Product Label

Label for Kava 500 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Botanical with Nutrients
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s) (1% DV)
Calcium
57 mg (6% DV)
Exceeds UL by 2.0× (UL: 250 mg) 15 studies (A:0, B:5)

Other Ingredients

Dibasic Calcium Phosphate Sorbitol Stearic Acid modified Cellulose Gum Silica Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: 1 tablet 1 to 2 times daily.

Warnings & Precautions

Warning: US FDA advises that a potential risk of rare, but severe, liver injury may be associated with kava-containing dietary supplements.

Ask a healthcare professional before use if you have or have had liver problems, frequently use alcoholic beverages or are taking any medication.

Stop use and see a doctor if you develop symptoms that may signal liver problems (e.g. unexplained fatigue, abdominal pain, loss of appetite, fever, vomiting, dark urine, pale stools, yellow eyes or skin).

Not for use by persons under 18 years of age, or by pregnant or breastfeeding women.

Not for use by persons under 18 years of age, or by pregnant or breastfeeding women.

Not for use with alcoholic beverages. Excessive use or use with products that cause drowsiness may impair your ability to operate a vehicle or heavy equipment.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

Formulation Notes

Suitable for vegetarians and vegans.

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, salt, preservatives, or artificial color, flavor or fragrance.

Additional Information

For occasional anxiety

Kava is made from the roots of a pepper family plant, Piper methysticum. Clinical studies indicate kava may help with occasional anxiety. Pacific Island people from New Guinea to Hawaii have used kava for centuries. Research has shown kava extracts contain pharmacologically active constituents known as kavalactones, which are thought to be responsible for a relaxed and calm state of mind.

Store in a cool, dry place.

SN2526 REV B161

Metadata

Product Details

UPC / SKU0 21078 02526 9
DSLD Entry Date2017-06-23
Product TypeBotanical with Nutrients
FormTablet or Pill
DSLD ID73737
Data Updated2026-04-11
Research

Research Evidence

19
Research Sources
48
Avg Quality
8
Rct
5
Systematic Review
4
Meta Analysis
2
Clinical Trial
B Kava extract for treating anxiety
Meta Analysis The Cochrane database of systematic reviews 2003 PubMed
B Kava for Generalized Anxiety Disorder: A Review of Current Evidence
Meta Analysis Journal of alternative and complementary medicine (New York, N.Y.) 2018 PubMed DOI
B Kava extract for treating anxiety
Systematic Review The Cochrane database of systematic reviews 2001 PubMed
B Kava extract for treating anxiety
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B The effectiveness and safety of Kava Kava for treating anxiety symptoms: A systematic review and analysis of randomized clinical trials
Systematic Review Complementary therapies in clinical practice 2018 PubMed DOI
C Kava for generalised anxiety disorder: A 16-week double-blind, randomised, placebo-controlled study
Rct The Australian and New Zealand journal of psychiatry 2020 PubMed DOI
C Kava and St. John's Wort: current evidence for use in mood and anxiety disorders
Systematic Review Journal of alternative and complementary medicine (New York, N.Y.) 2009 PubMed DOI
C Neuroimaging Insights: Kava's (Piper methysticum) Effect on Dorsal Anterior Cingulate Cortex GABA in Generalized Anxiety Disorder.
Rct Nutrients PubMed DOI
C The risk-benefit profile of commonly used herbal therapies: Ginkgo, St. John's Wort, Ginseng, Echinacea, Saw Palmetto, and Kava
Meta Analysis Annals of internal medicine 2002 PubMed
C Efficacy of kava extract for treating anxiety: systematic review and meta-analysis
Meta Analysis Journal of clinical psychopharmacology 2000 PubMed
View all evidence for Kava →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.