Herb Profile
Neem
It should be framed carefully because topical, oral, and seed oil contexts differ substantially in safety relevance.
Last reviewed: •3 human studies cited
C PreliminaryUse extra caution — May influence glucose or metabolic markers; monitor with antidiabetic medications and avoid pregnancy/breastfeeding use unless clinician supervised. Details
- Evidence
- Limited Human Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Antimicrobial, Skin Support, Inflammatory signaling, Metabolic health
- Avoid / review if
- Pregnancy/Trying To Conceive, Children, Liver Disease
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Neem
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Safety & Cautions
May influence glucose or metabolic markers; monitor with antidiabetic medications and avoid pregnancy/breastfeeding use unless clinician supervised.
28%
High caution — review carefully
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- - Pregnancy/Trying To Conceive
- - Children
- - Liver Disease
- - Hypoglycemia Risk
- - Breastfeeding Without Guidance
- - May Potentiate Antidiabetics
- - Immunosuppressants
- - And Hepatotoxic Drugs/Supplements.
Safety classifications
- - Liver-Sensitive: Liver-related caution language appears in the profile.
- - Pregnancy/Breastfeeding Caution: Pregnancy or breastfeeding caution language is present.
Full safety note
- - May influence glucose or metabolic markers; monitor with antidiabetic medications and avoid pregnancy/breastfeeding use unless clinician supervised.
Safety labels
- - Liver-Sensitive
- - Pregnancy/Breastfeeding Caution
Evidence-based safety
Caution when combined
These pairings share a flagged risk mechanism. They are additive-effect cautions derived from contraindication data, not confirmed clinical interactions. Consult a clinician before combining.
Moderate Caution
110 flagged pairingsBlood-sugar lowering
Moderate Caution
110 flagged pairingsBlood-sugar lowering
Browse the grouped cautions below. The list scrolls inside this card when long.
Blood-sugar lowering
- Acarbose
- ajoene
- Allicin
- Aloe Vera
- Alpha-Lipoic Acid
- American Ginseng Extract
- Andrographis
- Anemarrhena Asphodeloides
- Tarragon
- Ashoka
- Astragalus
- Astragalus Membranaceus
- Bael
- Berberis
- Berberis Vulgaris
- Black Seed
- Blueberry
- Buckwheat
- Burdock
- Caraway
- Cichorium Intybus
- Cinnamon
- Cinnamon extract
- Cissus
- Cistanche
- Cistanche Deserticola
- Citrus Bergamia
- Citrus Sinensis
- CJC-1295
- Coenzyme Q10
- Commiphora Mukul
- Coptis
- Coptis Chinensis
- Coriandrum Sativum
- Cornus Officinalis
- Curry Leaf
- D-Mannose
- D-Ribose
- Damiana
- Dandelion
- Dendrobium
- Devils Claw Extract
- Elderberry
- Elecampane
- Eucommia
- Fenugreek
- Fenugreek Extract
- Fingerroot
- Fisetin
- Fucoxanthin
- Garcinia Indica
- Garlic Extract
- Ginkgo Biloba Extract
- Panax Red Ginseng
- Panax White Ginseng
- Glucosamine
- Goldenseal
- Gudmar
- Gymnema
- Holy Basil / Tulsi (Ocimum tenuiflorum)
- Holy Basil Purple
- Holy Basil Seed
- Ipamorelin
- Jujube
- Kuding Tea
- Kudzu
- Banaba
- Luo Han Guo
- Mangifera Indica
- Marshmallow
- MCT Oil
- Bitter Melon
- Morinda Citrifolia
- Moringa
- Morus Alba
- Mulberry Leaf
- Myrtle
- Nelumbo Nucifera
- Nettle Root
- Nigella Sativa
- Nicotinamide Mononucleotide
- Notoginseng
- Ocimum Basilicum
- Olive Leaf Extract
- Oregano
- Panax Ginseng Extract
- American Ginseng
- Papaya Leaf
- Phellodendron
- Phellodendron Amurense
- Psyllium
- Pueraria Lobata
- Pycnogenol
- Rehmannia Glutinosa
- Rehmannia Prepared
- Rice Bran
- Rooibos
- Roselle Seed
- Sage
- Salacia
- Semaglutide
- Serenoa Repens
- Shatavari
- Soursop
- Tamarind
- Tirzepatide
- Tongkat Ali
- Fenugreek
- Wild Yam
- Ashwagandha
Evidence Summary
Evidence lens
Early signal that needs stronger human replication before practical claims.
PreliminaryLimited Human Evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation · Metabolic Regulation · Immune Signaling Modulation
Research maturity: Preliminary or mixed — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — May influence glucose or metabolic markers; monitor with antidiabetic medications and avoid pregnancy/breastfeeding use unless clinician supervised.
This profile cites 3 human studies.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
A
Strong
Multiple RCTs, consistent direction, adequate effect size
B
Moderate
Some RCTs or consistent observational data in humans
C
Preliminary / Mixed
Animal or in-vitro only, or conflicting human data
D
Traditional / Theoretical
Traditional use only; no controlled human trials
Clinical Study Summaries (3)Cited studies informing this profile. RCTs and reviews shown first.
| Study | Type | Sample | Source |
|---|---|---|---|
Rosemary and neem: an insight into their combined anti-dandruff and anti-hair loss efficacy Hashem MM et al. (2024) | — | — | PubMed → |
Alternative first-line malaria treatment Maafoh C et al. (2024) | — | — | PubMed → |
Gawish AS et al. (2024) | — | — | PubMed → |
Dosing & Timing
Dose guidance
Preparation specific; use standardized product label for Leaf and require source backed dosage review before therapeutic claims.
How Neem Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Neem Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & Biological Pathways
Preclinical pathways
Proposed mechanisms from in vitro and animal research; these do not confirm clinical outcomes in humans.
Inflammatory Signaling ModulationMetabolic RegulationImmune Signaling Modulation
Condition guides
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Neem
Independent database mapping — evaluated separately from safety and efficacy scores.
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Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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Botanical profile context
How to interpret Neem
Neem dosage ranges, effects, drug interactions, and harm-reduction safety guide for antimicrobial. Limited Human Evidence research evidence. Use this herb profile as a starting point for evidence review, not as a recommendation to start a new supplement. Botanical products can vary by plant part, extract ratio, standardization, dose, and contaminant testing, so two labels with the same common name may not behave the same way.
When reviewing Neem, compare the traditional-use context against the human evidence, mechanism notes, and safety cautions. Pay special attention to pregnancy, breastfeeding, liver or kidney disease, blood-pressure effects, sedation, stimulation, anticoagulant use, antidepressants, and any prescription medication overlap.
For product decisions, prefer transparent labels, named extracts, clear serving sizes, and third-party quality testing. Avoid treating a long list of possible mechanisms as proof that an herb will solve a specific condition.