Plant Comparison

Hemp vs Chia

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
Show:
Plant AHempCannabis sativaCannabaceaeFull monograph →
Plant BChiaSalvia hispanicaLamiaceaeFull monograph →

At a glance

Hemp and Chia: they share 4 indicated uses (arthritis / joint pain, cardiovascular / heart health, inflammation (general), …); 2 pharmacological actions in common.

HempChia
Constituents34
Pharmacological actions43
Indicated uses87
Safety notes22
Cited sources1914
Indicated uses
Only Hemp
Back painHeadacheInsomnia / sleeplessnessPain (general)
Shared (4)
Arthritis / joint painCardiovascular / heart healthInflammation (general)Skin irritation
Only Chia
BloatingIndigestionMetabolic support
Pharmacological actions
Only Hemp
Analgesic (pain relief)Sedative / sleep support
Shared (2)
Anti-inflammatoryAntioxidant
Only Chia
Digestive aid

Evidence face-off — shared uses

ConditionHempChiaVerdict
Arthritis / joint pain5/105/10Comparable evidence
Cardiovascular / heart health5/1010/10Stronger for Chia
Inflammation (general)5/105/10Comparable evidence
Skin irritation5/105/10Comparable evidence

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

Key Constituents

Cannabinoids (THC, CBD and related compounds)[14, 15]

The characteristic bioactive compounds of the resin-bearing flowers, varying widely in ratio and concentration between cultivars; THC is psychoactive, CBD is not.

Terpenes[14]

Aromatic terpenes contribute to the plant's characteristic scent and may modulate cannabinoid effects.

Terpenes / terpenoidsEssential (volatile) oil
Seed oil fatty acids[14]

Hemp seed is rich in polyunsaturated fatty acids (including omega-3 and omega-6), giving the pressed seed oil its nutritional value; essentially free of psychoactive cannabinoids.

Alpha-linolenic acid (omega-3 fatty acid)[1]

The dominant fatty acid of chia oil, one of the richest plant sources of omega-3 known.

Mucilage polysaccharides (seed coat)[2]

Responsible for the seed's characteristic gel-forming property when soaked.

MucilagePolysaccharides
Phenolic antioxidants (chlorogenic acid, caffeic acid, quercetin, kaempferol)[1]

Contribute to the seed's antioxidant activity.

Chlorogenic acidCaffeic acidQuercetinKaempferol
Protein and dietary fibre[2]

Chia is a complete plant protein source and exceptionally high in dietary fibre.

Pharmacological Actions

Analgesic (pain relief)[1, 7, 9, 12, 14, 15, 16]
Anti-inflammatory[6, 8, 10, 12, 14, 15, 16]
Antioxidant[5, 14, 15, 16]
Sedative / sleep support[14, 15, 16]
Anti-inflammatory[2, 9, 10, 11, 12]
Antioxidant[1, 2, 4, 7, 10, 11, 12]
Digestive aid[11, 12]

Traditional & Indicated Uses

Arthritis / joint pain[14, 15, 16]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Arthritis / joint pain
Back pain[14, 15, 16]Moderate · 5/10

inferred from analgesic action

Evidence: 5
Label: Back pain
Cardiovascular / heart health[14, 15, 16]Moderate · 5/10
Evidence: 5
Label: Cardiovascular / heart health
Headache[14, 15, 16]Moderate · 5/10

inferred from analgesic action

Evidence: 5
Label: Headache
Inflammation (general)[14, 15, 16]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Inflammation (general)
Insomnia / sleeplessness[14, 15, 16]Moderate · 5/10

inferred from sedative action

Evidence: 5
Label: Insomnia / sleeplessness
Pain (general)[14, 15, 16]Moderate · 5/10
Evidence: 5
Label: Pain (general)
Skin irritation[14, 15, 16]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Skin irritation
Arthritis / joint pain[11, 12]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Arthritis / joint pain
Bloating[11, 12]Moderate · 5/10

inferred from digestive action

Evidence: 5
Label: Bloating
Cardiovascular / heart health[3, 5, 6, 9, 11, 12, 13]Strong · 10/10
Evidence: 10
Label: Cardiovascular / heart health
Indigestion[11, 12]Moderate · 5/10

inferred from digestive action

Evidence: 5
Label: Indigestion
Inflammation (general)[9, 11, 12]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Inflammation (general)
Metabolic support[11, 12, 13]Moderate · 6/10
Evidence: 6
Label: Metabolic support
Skin irritation[11, 12]Moderate · 5/10

inferred from anti-inflammatory action

Evidence: 5
Label: Skin irritation

Safety, Cautions & Contraindications

Safety note[14, 15, 16]Caution

Industrial hemp (low-THC cannabis) seed oil and seeds are generally safe as food. CBD products derived from hemp may interact with medications metabolised by cytochrome P450 liver enzymes, including common anticoagulants, antiepileptics, and immunosuppressants. THC-containing preparations impair driving and are regulated or prohibited in many jurisdictions. Not recommended during pregnancy or breastfeeding. Quality and cannabinoid content vary widely between hemp products.

Safety note[14, 15, 16, 17]Caution

Duke (2002) rates cannabis as ++ and notes clinical evidence (score 2) for its antiemetic activity, especially relevant for chemotherapy-induced nausea. Score 1 activities include analgesic, anticonvulsant, and anti-inflammatory properties. Duke highlights the legal and pharmacological complexity, noting THC as the primary psychoactive compound. Medically, synthetic cannabinoids (dronabinol, nabilone) are clinically approved for nausea and anorexia. Duke cautions that while the plant has genuine therapeutic potential, psychoactive effects, legal restrictions, and risk of dependence with regular use must be considered (Duke, 2002).

Safety note[11, 12, 13]Info

Never swallow a spoon of dry chia seeds and “chase” with water. They can swell fast and (rarely) cause a blockage, especially if someone already has swallowing problems (American College of Gastroenterology, 2014) Blood pressure / diabetes meds: if you’re on medication for blood pressure or blood sugar, chia as a major daily addition may slightly add to the effect for some people—monitor and talk to your clinician (Saadh et al., 2024) (Pam et al., 2024).

Safety note[11, 12, 13, 14]Info

Duke (2002) does not include a dedicated entry for Chia (Salvia hispanica) in the Handbook of Medicinal Herbs, Second Edition.

External Ids

Gbif: 5361880
Wikidata: Q26726
Gbif: 2926992
Wikidata: Q1071585

Botanical Description

Erect annual herb with a distinctive palmately compound leaf of narrow, serrated leaflets. The plant is usually dioecious (separate male and female plants); female plants develop dense, resinous flower clusters, while male plants bear looser pollen-releasing flowers. The seed (achene) is small, hard-shelled and oil-rich.[14]

Height: 1-5 m, depending on variety and cultivation
Habit: Erect, fast-growing annual herb
Leaves: Palmately compound, narrow serrated leaflets
Flowers: Dioecious; female flowers in dense resinous clusters, male flowers looser and pollen-releasing
Stem: Erect, fibrous, often ridged
Root: Taproot with fibrous lateral roots
Fruit: Small, hard-shelled, oil-rich achene (seed)
Flowering Period: Late summer to autumn

Annual herb (Lamiaceae), 1-1.5 m tall, with square stems. Leaves are opposite, ovate to oblong with a toothed margin. Small purple to white, two-lipped flowers are borne in dense terminal spikes, followed by small oval seeds (grey-brown, mottled, or occasionally white) - the part used.[1]

Height: 1-1.5 m
Habit: Erect annual herb
Leaves: Opposite, ovate to oblong, toothed
Flowers: Small, purple to white, two-lipped, in dense terminal spikes
Stem: Square, erect
Root: Fibrous annual root system
Fruit: Small oval seeds, grey-brown and mottled (or occasionally white)
Flowering Period: Variable, typically late summer in its native range

Habitat

Believed native to Central Asia; now cultivated worldwide, with industrial hemp (low-THC cultivars) grown in temperate climates for fibre, seed and cannabinoid extraction, subject to varying legal regulation by jurisdiction.[14]

Native to central and southern Mexico and Guatemala, historically a staple crop of Aztec and Mayan agriculture; now cultivated commercially in warm subtropical and tropical regions worldwide (notably South America and Australia) as a food crop.[1]

Harvesting

Flowers (and resin-bearing leaves) are harvested at peak resin/cannabinoid content, typically as the flower clusters mature in late summer to autumn; seed is harvested once mature and dried, then pressed for oil or used whole.[14]

Parts: Flower, Leaf, Seed
Season: Late summer to autumn

Seed heads are harvested once dry, typically in autumn, and threshed to release the small seeds.[1]

Parts: Seed
Season: Autumn, once seed heads have dried

Traditional Uses

Cannabis/hemp has a long multi-cultural history as a fibre, food and medicinal plant, traditionally used for pain, muscle spasm, sleep and appetite, alongside industrial use of the fibre and seed. Modern cannabinoid research, particularly on THC and CBD, has substantially expanded the evidence base for pain, spasticity and specific seizure disorders.[14, 15]

Chia seed has an ancient Mesoamerican food-medicine tradition as an energy-sustaining staple food for Aztec warriors and runners. Its modern popularity centres on its dense nutrient profile - fibre, omega-3 (alpha-linolenic acid) fatty acids, protein and antioxidants - studied for metabolic, cardiovascular and digestive support.[1]

Preparations

Seed / seed oil[14]

Whole or hulled seed, or cold-pressed seed oil, used as a nutritional food source (essentially free of psychoactive cannabinoids).

Standardised cannabinoid extract[15]

Extract standardised to specific cannabinoid content (e.g. CBD), used in regulated medicinal products; regulatory status varies widely by jurisdiction and product type.

Whole or ground seed (culinary)[1]

Eaten whole, ground, or soaked to form a gel (due to the seed's high mucilage content), stirred into food or drinks.

References

REF-0758, REF-0759, REF-0760, REF-2132, REF-2133, REF-2134, REF-2135, REF-2136, REF-2137, REF-2138, REF-2139, REF-2140, REF-2141
REF-1263, REF-1264, REF-1265, REF-1266, REF-1267, REF-1268, REF-1269, REF-1270, REF-1271, REF-1272

Drug Class Interactions

Safety note[18, 19]Caution
Drug Class: sedatives-cns-depressants
Mechanism: Cannabis (and CBD) commonly cause drowsiness and sedation; taken with sedatives, sleeping tablets, opioids or other central-nervous-system depressants (including alcohol) it may add to drowsiness and slowed reactions.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03
Safety note[18]Caution
Drug Class: anticonvulsants
Mechanism: Cannabidiol (CBD) interacts with anti-seizure medicines - notably raising exposure to clobazam - and can add to sedation; anyone combining cannabis/CBD with anticonvulsants should be monitored and doses reviewed by their clinician.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Not documented

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

Dosage

Not documented

Whole/ground seed[1, 2]

Typical dietary and study amounts range from about 15-25 g (roughly 1-2 tablespoons) of seed daily, usually soaked or ground for better digestibility. Educational reference only, not a prescription; always take with adequate liquid, never dry-swallowed.

References & Sources

  1. Rock, E.M. and Parker, L.A (2021) 'Constituents of Cannabis sativa', Advances in Experimental Medicine and Biology, 1264, pp. 1-13. doi:10.1007/978-3-030-57369-0_1 Traditional / reference
    https://doi.org/10.1007/978-3-030-57369-0_1
  2. Castillo-Arellano, J., Canseco-Alba, A., Cutler, S.J. and León, F (2023) 'The Polypharmacological Effects of Cannabidiol', Molecules, 28(7), pp. 3271. doi:10.3390/molecules28073271 Traditional / reference
    https://doi.org/10.3390/molecules28073271
  3. Pagano, C., Navarra, G., Coppola, L., Avilia, G. et al (2022) 'Cannabinoids: Therapeutic Use in Clinical Practice', International Journal of Molecular Sciences, 23(6), pp. 3344. doi:10.3390/ijms23063344 Traditional / reference
    https://doi.org/10.3390/ijms23063344
  4. ElSohly, M.A., Radwan, M.M., Gul, W., Chandra, S. and Galal, A (2017) 'Phytochemistry of Cannabis sativa L', Progress in the Chemistry of Organic Natural Products, 103, pp. 1-36. doi:10.1007/978-3-319-45541-9_1 Meta-analysis / review
    https://doi.org/10.1007/978-3-319-45541-9_1
  5. Viana, M.D.B., de Aquino, P.E.A., Estadella, D., Ribeiro, D.A. and Viana, G.S.D.B (2022) 'Cannabis sativa and cannabidiol: a therapeutic strategy for the treatment of neurodegenerative diseases?', Medical Cannabis and Cannabinoids, 5(1), pp. 207-219. doi:10.1159/000527335 Meta-analysis / review
    https://doi.org/10.1159/000527335
  6. Alves, P., Amaral, C., Teixeira, N. and Correia-da-Silva, G (2020) 'Cannabis sativa: much more beyond delta-9-tetrahydrocannabinol', Pharmacological Research, 157, pp. 104822. doi:10.1016/j.phrs.2020.104822 Meta-analysis / review
    https://doi.org/10.1016/j.phrs.2020.104822
  7. Odieka, A.E., Obuzor, G.U., Oyedeji, O.O., Gondwe, M., Hosu, Y.S. and Oyedeji, A.O (2022) 'The medicinal natural products of Cannabis sativa Linn.: a review', Molecules, 27(5), pp. 1689. doi:10.3390/molecules27051689 Meta-analysis / review
    https://doi.org/10.3390/molecules27051689
  8. Nuutinen, T (2018) 'Medicinal properties of terpenes found in Cannabis sativa and Humulus lupulus', European Journal of Medicinal Chemistry, 157, pp. 198-228. doi:10.1016/j.ejmech.2018.07.076 Meta-analysis / review
    https://doi.org/10.1016/j.ejmech.2018.07.076
  9. Liktor-Busa, E., Keresztes, A., LaVigne, J., Streicher, J.M. and Largent-Milnes, T.M (2021) 'Analgesic potential of terpenes derived from Cannabis sativa', Pharmacological Reviews, 73(4), pp. 98-126. doi:10.1124/pharmrev.120.000046 Meta-analysis / review
    https://doi.org/10.1124/pharmrev.120.000046
  10. Martinelli, G., Magnavacca, A., Fumagalli, M., Dell'Agli, M., Piazza, S. and Sangiovanni, E (2021) 'Cannabis sativa and skin health: dissecting the role of phytocannabinoids', Planta Medica, 88(7), pp. 492-506. doi:10.1055/a-1420-5780 Meta-analysis / review
    https://doi.org/10.1055/a-1420-5780
  11. Andre, C.M., Hausman, J.F. and Guerriero, G (2016) 'Cannabis sativa: the plant of the thousand and one molecules', Frontiers in Plant Science, 7, pp. 19. doi:10.3389/fpls.2016.00019 Meta-analysis / review
    https://doi.org/10.3389/fpls.2016.00019
  12. Bonini, S.A., Premoli, M., Tambaro, S., Kumar, A., Maccarinelli, G., Memo, M. and Mastinu, A (2018) 'Cannabis sativa: a comprehensive ethnopharmacological review of a medicinal plant with a long history', Journal of Ethnopharmacology, 227, pp. 300-315. doi:10.1016/j.jep.2018.09.004 Meta-analysis / review
    https://doi.org/10.1016/j.jep.2018.09.004
  13. Bergamaschi, M.M., Queiroz, R.H.C., Zuardi, A.W. and Crippa, J.A.S (2011) 'Safety and side effects of cannabidiol, a Cannabis sativa constituent', Current Drug Safety, 6(4), pp. 237-249. doi:10.2174/157488611798280924 Meta-analysis / review
    https://doi.org/10.2174/157488611798280924
  14. Cerino, P., Buonerba, C., Cannazza, G. et al (2021) 'A review of hemp as food and nutritional supplement', 6(1), pp. 19--27. doi:10.1089/can.2020.0001 Preclinical
    https://doi.org/10.1089/can.2020.0001
  15. Devinsky, O., Cross, J.H., Laux, L. et al (2017) 'Trial of cannabidiol for drug-resistant seizures in the Dravet syndrome', 376(21), pp. 2011--2020. Randomized trial
    https://scholar.google.com/scholar?q=Trial%20of%20cannabidiol%20for%20drug-resistant%20seizures%20in%20the%20Dravet%20syndrome
  16. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  17. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
  18. Talwar, A., Estes, E., Aparasu, R. and Reddy, D.S (2022) 'Clinical efficacy and safety of cannabidiol for pediatric refractory epilepsy indications: A systematic review and meta-analysis', Experimental Neurology, 359, pp. 114238. doi:10.1016/j.expneurol.2022.114238 Meta-analysis / review
    https://doi.org/10.1016/j.expneurol.2022.114238
  19. Caus, M.N., Lupoae, M. and Chitescu, C.L (2026) 'Efficacy and Safety of Herbal Supplements with Anxiolytic, Antidepressant, and Sedative Action: A Review of Clinical Data and Toxicological Risks', Pharmaceuticals, 19(3), pp. 399. doi:10.3390/ph19030399 Meta-analysis / review
    https://doi.org/10.3390/ph19030399
  1. Khalid, W., Arshad, M.S., Aziz, A., Rahim, M.A. and others (2023) 'Chia seeds (Salvia hispanica L.): A therapeutic weapon in metabolic disorders', Food Science & Nutrition, 11(1), pp. 3-16. doi:10.1002/fsn3.3035 Meta-analysis / review
    https://doi.org/10.1002/fsn3.3035
  2. Enes, B.N., Moreira, L.P.D., Silva, B.P., Grancieri, M. and others (2020) 'Chia seed (Salvia hispanica L.) effects and their molecular mechanisms on unbalanced diet experimental studies: A systematic review', Journal of Food Science, 85(2), pp. 226-239. doi:10.1111/1750-3841.15003 Meta-analysis / review
    https://doi.org/10.1111/1750-3841.15003
  3. Silva, L.A., Verneque, B.J.F., Mota, A.P.L. and Duarte, C.K (2021) 'Chia seed (Salvia hispanica L.) consumption and lipid profile: a systematic review and meta-analysis', Food & Function, 12(19), pp. 8835-8849. doi:10.1039/d1fo01287h Meta-analysis / review
    https://doi.org/10.1039/d1fo01287h
  4. Valdivia-Lopez, M.A. and Tecante, A (2015) 'Chia (Salvia hispanica): A Review of Native Mexican Seed and its Nutritional and Functional Properties', Advances in Food and Nutrition Research, 75, pp. 53-75. doi:10.1016/bs.afnr.2015.06.002 Meta-analysis / review
    https://doi.org/10.1016/bs.afnr.2015.06.002
  5. Teoh, S.L., Lai, N.M., Vanichkulpitak, P., Vuksan, V. and others (2018) 'Clinical evidence on dietary supplementation with chia seed (Salvia hispanica L.): a systematic review and meta-analysis', Nutrition Reviews, 76(4), pp. 219-242. doi:10.1093/nutrit/nux071 Meta-analysis / review
    https://doi.org/10.1093/nutrit/nux071
  6. de Souza Ferreira, C., de Sousa Fomes, L.F., da Silva, G.E. and Rosa, G (2015) 'Effect of chia seed (Salvia hispanica L.) consumption on cardiovascular risk factors in humans: a systematic review', Nutricion Hospitalaria, 32(5), pp. 1909-1918. doi:10.3305/nh.2015.32.5.9394 Meta-analysis / review
    https://doi.org/10.3305/nh.2015.32.5.9394
  7. Knez Hrncic, M., Ivanovski, M., Cor, D. and Knez, Z (2019) 'Chia Seeds (Salvia hispanica L.): An Overview-Phytochemical Profile, Isolation Methods, and Application', Molecules, 25(1), pp. 11. doi:10.3390/molecules25010011 Meta-analysis / review
    https://doi.org/10.3390/molecules25010011
  8. Oliva, M.E., Ferreira, M.D.R., Vega Joubert, M.B. and D'Alessandro, M.E (2020) 'Salvia hispanica L. (chia) seed promotes body fat depletion and modulates adipocyte lipid handling in sucrose-rich diet-fed rats', Food Research International, 139, pp. 109842. doi:10.1016/j.foodres.2020.109842 Preclinical
    https://doi.org/10.1016/j.foodres.2020.109842
  9. Vega Joubert, M.B., Degrave, V., Ingaramo, P., Oliva, M.E. and others (2022) 'Salvia hispanica L. (chia) seed improves liver inflammation and endothelial dysfunction in an experimental model of metabolic syndrome', Food & Function, 13(21), pp. 11249-11261. doi:10.1039/d2fo02216h Preclinical
    https://doi.org/10.1039/d2fo02216h
  10. Grancieri, M., Martino, H.S.D. and Gonzalez de Mejia, E (2019) 'Chia Seed (Salvia hispanica L.) as a Source of Proteins and Bioactive Peptides with Health Benefits: A Review', Comprehensive Reviews in Food Science and Food Safety, 18(2), pp. 480-499. doi:10.1111/1541-4337.12423 Meta-analysis / review
    https://doi.org/10.1111/1541-4337.12423
  11. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  12. Vuksan, V., Jenkins, A.L., Dias, A.G., Lee, A.S., Jovanovski, E., Rogovik, A.L. and Hanna, A (2010) 'Reduction in postprandial glucose excursion and prolongation of satiety: possible explanation of the long-term effects of whole grain Salba (Salvia hispanica L.)', 64(4), pp. 436--438. doi:10.1038/ejcn.2009.159 Randomized trial
    https://doi.org/10.1038/ejcn.2009.159
  13. Chandalia, M., Garg, A., Lutjohann, D., von Bergmann, K., Grundy, S.M. and Brinkley, L.J (2000) 'Beneficial effects of high dietary fiber intake in patients with type 2 diabetes mellitus', 342(19), pp. 1392--1398. doi:10.1056/nejm200005113421903 Randomized trial
    https://doi.org/10.1056/nejm200005113421903
  14. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition

Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.